• prof. dr hab. Adam Idziak
Stanowisko: Profesor
Jednostka: Instytut Nauk o Ziemi
Adres: 41-200 Sosnowiec, ul. Będzińska 60
Piętro: XIII
Numer pokoju: 1319
Telefon: (32) 3689 216
E-mail: adam.idziak@us.edu.pl
Spis publikacji: Spis wg CINiBA
Spis publikacji: Spis wg OPUS
Scopus Author ID: 6602317479
Publikacje z bazy Scopus
2021
Kondracka, M.; Cabała, J.; Idziak, A. F.; Ignatiuk, D.; Bielicka-Giełdoń, A.; Stan-Kłeczek, I.
Detection of land degradation caused by historical Zn-Pb mining using electrical resistivity tomography Journal Article
In: Land Degradation and Development, vol. 32, no. 11, pp. 3296-3314, 2021, ISSN: 10853278.
@article{2-s2.0-85107836252,
title = {Detection of land degradation caused by historical Zn-Pb mining using electrical resistivity tomography},
author = { M. Kondracka and J. Cabała and A.F. Idziak and D. Ignatiuk and A. Bielicka-Giełdoń and I. Stan-Kłeczek},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107836252&doi=10.1002%2fldr.4005&partnerID=40&md5=222cac73749bcae20557b248d388b834},
doi = {10.1002/ldr.4005},
issn = {10853278},
year = {2021},
date = {2021-01-01},
journal = {Land Degradation and Development},
volume = {32},
number = {11},
pages = {3296-3314},
publisher = {John Wiley and Sons Ltd},
abstract = {Soil contamination with trace elements in mining areas still remains an urgent research problem due to their negative environmental impact that needs to be assessed. Despite the wide application of the electrical resistivity tomography (ERT) method to different environmental problems, it continually remains methodologically challenging in soil contamination near waste dumps of post-metal historical mining. The aims of our study were: (1) to validate ERT measurements for detecting soil contamination by trace elements in the vicinity of a waste dump containing post-processing spoil from Zn-Pb ore smelting, (2) to determine the extent of soil contamination, and (3) to analyze the mineralogical, physical, and chemical properties of the soils affected. ERT enabled us to study the variability of electrical properties of soils, to locate the area of contamination, and to evaluate its spatial diversity in both. The impact of soil pollution is reflected on ERT cross-sections in the form of electrical resistivities that decrease with increasing depth and distance from the waste dump. The respective maximum contents of Zn, Pb and Cd in the soils were 28,903, 12,407, and 136 mg kg−1. The total concentration of trace elements in soils was the highest down to a depth of 0.25 m and decreased in the order: Zn > Pb > Cu > Cd > Tl > As > Cr > Ni. The electrical resistivities of the soil samples were negatively correlated with the silty and clayey fraction content (−0.78), specific electrical conductivity (−0.75), total trace element content (−0.67), organic matter content (−0.57), and gravimetric water content (−0.53). The results also indicate that the electrical properties of the topsoil depend directly on the type of mineral components. Hydrated iron sulphates, lead sulphates, water-bound in aluminosilicates, Fe oxides/hydroxides, and hydrated Fe, Zn, and Pb sulphates present in the soil all decrease its electrical resistivity. Our results show the impact of the mineralogical, physical, and chemical properties of the soils on the measured electrical resistivity and that including this information in the interpretation of ERT results enables non-invasive detailed determination of soil contamination by trace elements. © 2021 John Wiley & Sons, Ltd.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Soil contamination with trace elements in mining areas still remains an urgent research problem due to their negative environmental impact that needs to be assessed. Despite the wide application of the electrical resistivity tomography (ERT) method to different environmental problems, it continually remains methodologically challenging in soil contamination near waste dumps of post-metal historical mining. The aims of our study were: (1) to validate ERT measurements for detecting soil contamination by trace elements in the vicinity of a waste dump containing post-processing spoil from Zn-Pb ore smelting, (2) to determine the extent of soil contamination, and (3) to analyze the mineralogical, physical, and chemical properties of the soils affected. ERT enabled us to study the variability of electrical properties of soils, to locate the area of contamination, and to evaluate its spatial diversity in both. The impact of soil pollution is reflected on ERT cross-sections in the form of electrical resistivities that decrease with increasing depth and distance from the waste dump. The respective maximum contents of Zn, Pb and Cd in the soils were 28,903, 12,407, and 136 mg kg−1. The total concentration of trace elements in soils was the highest down to a depth of 0.25 m and decreased in the order: Zn > Pb > Cu > Cd > Tl > As > Cr > Ni. The electrical resistivities of the soil samples were negatively correlated with the silty and clayey fraction content (−0.78), specific electrical conductivity (−0.75), total trace element content (−0.67), organic matter content (−0.57), and gravimetric water content (−0.53). The results also indicate that the electrical properties of the topsoil depend directly on the type of mineral components. Hydrated iron sulphates, lead sulphates, water-bound in aluminosilicates, Fe oxides/hydroxides, and hydrated Fe, Zn, and Pb sulphates present in the soil all decrease its electrical resistivity. Our results show the impact of the mineralogical, physical, and chemical properties of the soils on the measured electrical resistivity and that including this information in the interpretation of ERT results enables non-invasive detailed determination of soil contamination by trace elements. © 2021 John Wiley & Sons, Ltd.
Mendecki, M. J.; Odrobińska, J.; Patyńśka, R.; Idziak, A. F.
Ground-motion prediction models evoked by seismicity in the Upper Silesia Coal Basin, Poland, the review with case studies Journal Article
In: Geophysical Journal International, vol. 224, no. 2, pp. 1381-1403, 2021, ISSN: 0956540X, (1).
@article{2-s2.0-85099881178,
title = {Ground-motion prediction models evoked by seismicity in the Upper Silesia Coal Basin, Poland, the review with case studies},
author = { M.J. Mendecki and J. Odrobińska and R. Patyńśka and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099881178&doi=10.1093%2fgji%2fggaa525&partnerID=40&md5=36df518f79880af582419d69d0e57b93},
doi = {10.1093/gji/ggaa525},
issn = {0956540X},
year = {2021},
date = {2021-01-01},
journal = {Geophysical Journal International},
volume = {224},
number = {2},
pages = {1381-1403},
publisher = {Oxford University Press},
abstract = {This paper presents the results of new research on ground-motion relations from three areas in the Upper Silesia Coal Basin (USCB) in Poland and compares them with of ground-motion relations. These three mining areas of the USCB were investigated in order to better predict ground motion caused by seismic events. The study focused on variations in regression parameters and predicted PGA (peak ground acceleration) for different areas to better understand the influence of geology. To compare our results to previous models we had to unify the known ground-motion prediction equations (GMPE). Then, we used various regression models to predict the corresponding PGA values of a relatively strong USCB seismic event with an energy level of 108 J (ML = 3.3) and compared their results. The regression model parameters were compared to each other, particularly those related to energy and distance, which corresponds to a geometrical scattering (attenuation) of seismic waves as well as the influence of wave type (body or surface). Finally, building upon several established regression models, our analysis showed a strong linear correlation between two regression parameters corresponding to energy and distance. However, an open question remains whether this relation can be explained by physics, or, from a mathematical point of view, it is the effect of linear dependence of matrix vectors logE and logR. A comparison of different GMPEs allows for better verification of knowledge about the impact of tremors on ground motion in the USCB. © 2020 The Author(s). Published by Oxford University Press on behalf of The Royal Astronomical Society.},
note = {1},
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This paper presents the results of new research on ground-motion relations from three areas in the Upper Silesia Coal Basin (USCB) in Poland and compares them with of ground-motion relations. These three mining areas of the USCB were investigated in order to better predict ground motion caused by seismic events. The study focused on variations in regression parameters and predicted PGA (peak ground acceleration) for different areas to better understand the influence of geology. To compare our results to previous models we had to unify the known ground-motion prediction equations (GMPE). Then, we used various regression models to predict the corresponding PGA values of a relatively strong USCB seismic event with an energy level of 108 J (ML = 3.3) and compared their results. The regression model parameters were compared to each other, particularly those related to energy and distance, which corresponds to a geometrical scattering (attenuation) of seismic waves as well as the influence of wave type (body or surface). Finally, building upon several established regression models, our analysis showed a strong linear correlation between two regression parameters corresponding to energy and distance. However, an open question remains whether this relation can be explained by physics, or, from a mathematical point of view, it is the effect of linear dependence of matrix vectors logE and logR. A comparison of different GMPEs allows for better verification of knowledge about the impact of tremors on ground motion in the USCB. © 2020 The Author(s). Published by Oxford University Press on behalf of The Royal Astronomical Society.
2019
Braclawska, A.; Idziak, A. F.
Unification of data from various seismic catalogues to study seismic activity in the Carpathians Mountain arc Journal Article
In: Open Geosciences, vol. 11, no. 1, pp. 837-842, 2019, ISSN: 23915447, (2).
@article{2-s2.0-85077325493,
title = {Unification of data from various seismic catalogues to study seismic activity in the Carpathians Mountain arc},
author = { A. Braclawska and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077325493&doi=10.1515%2fgeo-2019-0065&partnerID=40&md5=902c0b6577f28273f4825819ab96537c},
doi = {10.1515/geo-2019-0065},
issn = {23915447},
year = {2019},
date = {2019-01-01},
journal = {Open Geosciences},
volume = {11},
number = {1},
pages = {837-842},
publisher = {De Gruyter Open Ltd},
abstract = {The Carpathian Mountainsarc is the most seismically active area in Central Europe. Analysis of the seismicity of entire Carpathian arc requires data from each of the particular catalogues which have to be properly and uniformly entered, standardized and merged. For our study we first had to prepare a database of seismic events (ML ≥ 1.6) compiled from the data of earthquakes taken from individual national seismic networks as well as data from international seismic centers. However, a careful review of these catalogues has uncovered significant inconsistencies, particularly discrepancies in the description of the location, magnitude and completeness of seismic events. To address these inconsistencies, a newly created compound earthquake catalogue was compiled from the aforementioned seismic catalogues and included events that occurred in the Carpathian Mountains arc area between 1976 and 2017. This work is intended to point out some of the problems associated with collecting data from various seismic catalogues as well as the need for their very careful verification, in order to create a uniform set of seismic data across a large area spanning numerous countries. The results suggest that compiling a uniform and dependable earthquake catalogue is crucial for reliable seismic studies. © 2019 A. Braclawska and A. F. Idziak.},
note = {2},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The Carpathian Mountainsarc is the most seismically active area in Central Europe. Analysis of the seismicity of entire Carpathian arc requires data from each of the particular catalogues which have to be properly and uniformly entered, standardized and merged. For our study we first had to prepare a database of seismic events (ML ≥ 1.6) compiled from the data of earthquakes taken from individual national seismic networks as well as data from international seismic centers. However, a careful review of these catalogues has uncovered significant inconsistencies, particularly discrepancies in the description of the location, magnitude and completeness of seismic events. To address these inconsistencies, a newly created compound earthquake catalogue was compiled from the aforementioned seismic catalogues and included events that occurred in the Carpathian Mountains arc area between 1976 and 2017. This work is intended to point out some of the problems associated with collecting data from various seismic catalogues as well as the need for their very careful verification, in order to create a uniform set of seismic data across a large area spanning numerous countries. The results suggest that compiling a uniform and dependable earthquake catalogue is crucial for reliable seismic studies. © 2019 A. Braclawska and A. F. Idziak.
Marciniak, A.; Stan-Kłeczek, I.; Idziak, A. F.; Majdański, M.
Uncertainty based multi-step seismic analysis for near-surface imaging Journal Article
In: Open Geosciences, vol. 11, no. 1, pp. 727-737, 2019, ISSN: 23915447, (8).
@article{2-s2.0-85074224702,
title = {Uncertainty based multi-step seismic analysis for near-surface imaging},
author = { A. Marciniak and I. Stan-Kłeczek and A.F. Idziak and M. Majdański},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074224702&doi=10.1515%2fgeo-2019-0057&partnerID=40&md5=93c42315f85ddda87833407e13dbc87a},
doi = {10.1515/geo-2019-0057},
issn = {23915447},
year = {2019},
date = {2019-01-01},
journal = {Open Geosciences},
volume = {11},
number = {1},
pages = {727-737},
publisher = {De Gruyter Open Ltd},
abstract = {Near-surface seismic surveys are often designed for surface wave and seismic tomographic analysis. In recent years, seismic imaging methods have been more frequently used at this scale. Recognition of near-surface structures using a single method is insufficient because of the ambiguity of the inversion problem. As a solution, the authors propose a multi-step approach, where several different seismic methods are used in a particular order, to achieve an optimal model. A multi-method approach allows utilisation of a whole spectrum of recorded data, even the elements that are treated as background noise in other techniques. In classical processing approach, information about data uncertainty is often omitted or used in the simplest way for the single method only. This work presents an updated approach to uncertainty analysis by transferring estimated uncertainty between processing steps. By assuming that every consecutively applied method is more certain, the authors were able to obtain accurate velocity fields for seismic imaging, as the main information received from the previous steps. Based on information from multiple methods, a seismic stack in the depth domain was created as a final result, with an estimate of uncertainty. © 2019 A. Marciniak et al.},
note = {8},
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pubstate = {published},
tppubtype = {article}
}
Near-surface seismic surveys are often designed for surface wave and seismic tomographic analysis. In recent years, seismic imaging methods have been more frequently used at this scale. Recognition of near-surface structures using a single method is insufficient because of the ambiguity of the inversion problem. As a solution, the authors propose a multi-step approach, where several different seismic methods are used in a particular order, to achieve an optimal model. A multi-method approach allows utilisation of a whole spectrum of recorded data, even the elements that are treated as background noise in other techniques. In classical processing approach, information about data uncertainty is often omitted or used in the simplest way for the single method only. This work presents an updated approach to uncertainty analysis by transferring estimated uncertainty between processing steps. By assuming that every consecutively applied method is more certain, the authors were able to obtain accurate velocity fields for seismic imaging, as the main information received from the previous steps. Based on information from multiple methods, a seismic stack in the depth domain was created as a final result, with an estimate of uncertainty. © 2019 A. Marciniak et al.
2018
Marciniak, A.; Stan-Kłeczek, I.; Idziak, A. F.; Majdański, M.
Uncertainty based multi-step seismic analysis for the near surface imaging Proceedings
European Association of Geoscientists and Engineers, EAGE, 2018, ISBN: 9789462822634.
@proceedings{2-s2.0-85084629382,
title = {Uncertainty based multi-step seismic analysis for the near surface imaging},
author = { A. Marciniak and I. Stan-Kłeczek and A.F. Idziak and M. Majdański},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084629382&doi=10.3997%2f2214-4609.201802562&partnerID=40&md5=278691f4c1961b890e51b4dfcd320129},
doi = {10.3997/2214-4609.201802562},
isbn = {9789462822634},
year = {2018},
date = {2018-01-01},
journal = {24th European Meeting of Environmental and Engineering Geophysics},
publisher = {European Association of Geoscientists and Engineers, EAGE},
abstract = {Near surface seismic surveys are often designed for surface waves and seismic tomographic analysis. In recent years, seismic imaging methods are more frequently used in this scale. Recognition of the near surface structures using a single method is insufficient, because of ambiguity of inversion problem. As a solution authors propose multi-step approach, where several different seismic methods are used in particular order, to receive optimal model. Multimethod approach, allows for utilize whole spectrum of recorded data, even the parts that are treated as a noise in other techniques. Novelty presented in this work is approach to results uncertainty, calculated at each step. The uncertainty of the results allows for correct results transfer between processing steps. Assuming that every consecutive applied method is more certain, authors were able to obtain accurate velocity field for seismic imaging, as a main information received from previous steps. Basing on an information from multiple methods, seismic stack in depth domain with estimated uncertainty was created as a final result. © 2019 24th European Meeting of Environmental and Engineering Geophysics. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
Near surface seismic surveys are often designed for surface waves and seismic tomographic analysis. In recent years, seismic imaging methods are more frequently used in this scale. Recognition of the near surface structures using a single method is insufficient, because of ambiguity of inversion problem. As a solution authors propose multi-step approach, where several different seismic methods are used in particular order, to receive optimal model. Multimethod approach, allows for utilize whole spectrum of recorded data, even the parts that are treated as a noise in other techniques. Novelty presented in this work is approach to results uncertainty, calculated at each step. The uncertainty of the results allows for correct results transfer between processing steps. Assuming that every consecutive applied method is more certain, authors were able to obtain accurate velocity field for seismic imaging, as a main information received from previous steps. Basing on an information from multiple methods, seismic stack in depth domain with estimated uncertainty was created as a final result. © 2019 24th European Meeting of Environmental and Engineering Geophysics. All rights reserved.
Mendecki, M. J.; Duda, A.; Idziak, A. F.
Ground-motion prediction equation and site effect characterization for the central area of the Main Syncline, Upper Silesia Coal Basin, Poland Journal Article
In: Open Geosciences, vol. 10, no. 1, pp. 474-483, 2018, ISSN: 23915447, (3).
@article{2-s2.0-85054375798,
title = {Ground-motion prediction equation and site effect characterization for the central area of the Main Syncline, Upper Silesia Coal Basin, Poland},
author = { M.J. Mendecki and A. Duda and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85054375798&doi=10.1515%2fgeo-2018-0037&partnerID=40&md5=cd843a71a2b3c99651c93a00dbf8a8cf},
doi = {10.1515/geo-2018-0037},
issn = {23915447},
year = {2018},
date = {2018-01-01},
journal = {Open Geosciences},
volume = {10},
number = {1},
pages = {474-483},
publisher = {De Gruyter Open Ltd},
abstract = {The aim of the study was to find the best model of ground-motion prediction equation (GMPE) forecasting peak ground acceleration (PGA) caused by induced seismicity. The maximum values of PGA on the surface are a major seismic threat for the infrastructure, especially in the highly urbanized areas, such is the Upper Silesian Metropolitan Area. The forecasting equations were estimated based on the values of PGA, epicenter distances and mining tremor energy registered by 14 surface seismometer stations located in the central area of the Main Syncline of the Upper Silesia Coal Basin. Data were collected within the period from January 2010 to December 2016, and the total number of seismic events used in the calculations was 15 541. The final model predicted the PGA values and amplification coefficients representing the characteristics of the site effects under seismometer stations. © 2018 M. J. Mendecki et al., published by De Gruyter.},
note = {3},
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The aim of the study was to find the best model of ground-motion prediction equation (GMPE) forecasting peak ground acceleration (PGA) caused by induced seismicity. The maximum values of PGA on the surface are a major seismic threat for the infrastructure, especially in the highly urbanized areas, such is the Upper Silesian Metropolitan Area. The forecasting equations were estimated based on the values of PGA, epicenter distances and mining tremor energy registered by 14 surface seismometer stations located in the central area of the Main Syncline of the Upper Silesia Coal Basin. Data were collected within the period from January 2010 to December 2016, and the total number of seismic events used in the calculations was 15 541. The final model predicted the PGA values and amplification coefficients representing the characteristics of the site effects under seismometer stations. © 2018 M. J. Mendecki et al., published by De Gruyter.
2017
Stan-Kłeczek, I.; Idziak, A. F.
The Changes of P-Wave Velocity of Rock Samples over Time Proceedings
Elsevier Ltd, vol. 191, 2017, ISSN: 18777058, (1).
@proceedings{2-s2.0-85021993614,
title = {The Changes of P-Wave Velocity of Rock Samples over Time},
author = { I. Stan-Kłeczek and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85021993614&doi=10.1016%2fj.proeng.2017.05.207&partnerID=40&md5=2557679b68d8a46675bb56aeb20d87f1},
doi = {10.1016/j.proeng.2017.05.207},
issn = {18777058},
year = {2017},
date = {2017-01-01},
journal = {Procedia Engineering},
volume = {191},
pages = {483-487},
publisher = {Elsevier Ltd},
abstract = {The main aim of this study was to determine the variation of the P- wave velocity of carbonate rocks over time. Samples of carbonate rocks like dolomite and limestone were carried out from three quarries. The study was done in May and November 2015. To test equipment Pundit Lab+ was used, which measure the transmission time of ultrasonic wave. On the base on the transmission time P- wave seismic velocities were calculated. It allows to compare the results obtained for one time interval and to calculate, using the Student's t test, if differences of P- wave seismic velocity values are significant. © 2017 The Authors.},
note = {1},
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pubstate = {published},
tppubtype = {proceedings}
}
The main aim of this study was to determine the variation of the P- wave velocity of carbonate rocks over time. Samples of carbonate rocks like dolomite and limestone were carried out from three quarries. The study was done in May and November 2015. To test equipment Pundit Lab+ was used, which measure the transmission time of ultrasonic wave. On the base on the transmission time P- wave seismic velocities were calculated. It allows to compare the results obtained for one time interval and to calculate, using the Student's t test, if differences of P- wave seismic velocity values are significant. © 2017 The Authors.
2016
Mendecki, M. J.; Janowska, E.; Kaczmarzyk, R.; Idziak, A. F.
In: Acta Geodynamica et Geomaterialia, vol. 13, no. 2, pp. 159-165, 2016, ISSN: 12149705, (1).
@article{2-s2.0-84971458089,
title = {The use of geoelectrical method in preliminary investigation of the fredro family’s iron mine adit in the village of cisna, the bieszczady mountains, se Poland},
author = { M.J. Mendecki and E. Janowska and R. Kaczmarzyk and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971458089&doi=10.13168%2fAGG.2015.0053&partnerID=40&md5=63c9c016662c7172bf15e2a1d8edfd1f},
doi = {10.13168/AGG.2015.0053},
issn = {12149705},
year = {2016},
date = {2016-01-01},
journal = {Acta Geodynamica et Geomaterialia},
volume = {13},
number = {2},
pages = {159-165},
publisher = {Academy of Sciences of the Czech Republic,},
abstract = {The study over the historical Rose iron mine adit were performed to find and map its location. In order to locate the exploited adit the resistivity imaging method was applied. Measurements were carried out along six survey profiles perpendicularly intersecting the adit. Measurements done along first three profiles were performed with application of 5 m electrode spacing and the total length of electrode array reached 200 m. For the profiles 4th and 6th 10 m electrode spacing was applied what gave total profile length of 400 m. The 5th profile possessed 5m electrode spacing and total length of 470 m. Roll-along technique was designed on this profile. For all measurements the Sweden equipment Lund produced by ABEM company was applied. Each resistivity cross-section was obtained after the robust inversion using Res2Dinv software. The results showed high resistivity anomalies located in areas suspicious as the adit, beneath the main ridge of Mochnaczka-Jeleni Skok Mountain. Near the adit entrance known from the historical information, the main anomaly was disturbed, probably because of the collapse of a tunnel entrance which could be seen in terrain morphology. It is supposed that on further distances the adit retained its character, however, it can be filled with secondary deposits or flooded. © 2016, Academy of Sciences of the Czech Republic. All rights reserved.},
note = {1},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The study over the historical Rose iron mine adit were performed to find and map its location. In order to locate the exploited adit the resistivity imaging method was applied. Measurements were carried out along six survey profiles perpendicularly intersecting the adit. Measurements done along first three profiles were performed with application of 5 m electrode spacing and the total length of electrode array reached 200 m. For the profiles 4th and 6th 10 m electrode spacing was applied what gave total profile length of 400 m. The 5th profile possessed 5m electrode spacing and total length of 470 m. Roll-along technique was designed on this profile. For all measurements the Sweden equipment Lund produced by ABEM company was applied. Each resistivity cross-section was obtained after the robust inversion using Res2Dinv software. The results showed high resistivity anomalies located in areas suspicious as the adit, beneath the main ridge of Mochnaczka-Jeleni Skok Mountain. Near the adit entrance known from the historical information, the main anomaly was disturbed, probably because of the collapse of a tunnel entrance which could be seen in terrain morphology. It is supposed that on further distances the adit retained its character, however, it can be filled with secondary deposits or flooded. © 2016, Academy of Sciences of the Czech Republic. All rights reserved.
2015
Stan-Kłeczek, I.; Idziak, A. F.; Kaszyca, B.
Comparison of elastic properties of fractured Triassic carbonate rocks on a base of geophysical research Proceedings
International Society for Rock Mechanics, 2015, ISBN: 9783950389814.
@proceedings{2-s2.0-85055174649,
title = {Comparison of elastic properties of fractured Triassic carbonate rocks on a base of geophysical research},
author = { I. Stan-Kłeczek and A.F. Idziak and B. Kaszyca},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055174649&partnerID=40&md5=3a6ce78c46cd48a6ea6940d6bc48d59f},
isbn = {9783950389814},
year = {2015},
date = {2015-01-01},
journal = {ISRM Regional Symposium, EUROCK 2015},
pages = {499-504},
publisher = {International Society for Rock Mechanics},
abstract = {Rock masses contain cracks and discontinuities which have an influence on their elastic properties and on velocity of seismic waves. Seismic waves velocity can vary depending on the direction of propagation. This effect is called seismic anisotropy. This paper presents results of the research which concern directional changes of dynamic elastic moduli. They were calculated on a base of P- and S-wave velocity obtained from laboratory and field measurements for Triassic carbonate rocks. In the same quarry the geometry and orientation of main crack systems were measured. On the base of these data obtained the information about main crack systems. The application of direct, laboratory and seismic methods allowed to obtain a lot of information about fractured rock mass. They are useful tool to study the degree of fracturing and rock massifs quality assessment for engineering purposes. © ÖGG.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
Rock masses contain cracks and discontinuities which have an influence on their elastic properties and on velocity of seismic waves. Seismic waves velocity can vary depending on the direction of propagation. This effect is called seismic anisotropy. This paper presents results of the research which concern directional changes of dynamic elastic moduli. They were calculated on a base of P- and S-wave velocity obtained from laboratory and field measurements for Triassic carbonate rocks. In the same quarry the geometry and orientation of main crack systems were measured. On the base of these data obtained the information about main crack systems. The application of direct, laboratory and seismic methods allowed to obtain a lot of information about fractured rock mass. They are useful tool to study the degree of fracturing and rock massifs quality assessment for engineering purposes. © ÖGG.
2014
Idziak, A. F.
Estimation of crack tensor components for the different distributions of crack orientation Book Chapter
In: pp. 411-414, CRC Press, 2014, ISBN: 9781315749525; 9781138001497.
@inbook{2-s2.0-85135504037,
title = {Estimation of crack tensor components for the different distributions of crack orientation},
author = { A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85135504037&partnerID=40&md5=d119252cc9258e9241f9ada598f9afc2},
isbn = {9781315749525; 9781138001497},
year = {2014},
date = {2014-01-01},
journal = {Rock Engineering and Rock Mechanics: Structures in and on Rock Masses},
pages = {411-414},
publisher = {CRC Press},
abstract = {Many rock masses contain a large number of discontinuities which make oriented fracture sets. The case is more common for many types of rock. Fracturing exert a particularly marked influence on the anisotropy of physical properties of rocks. Such fractured rock mass can be treated as homogeneous, anisotropic porous medium. To describe fracture porosity a symmetric crack tensor depended on the geometry of the related cracks (aperture; size and orientation) is used. The direct in situ measurement are a sound basis for determining the crack tensor. The tensor is obtained by statistical treatment of the crack orientation data presented by a stereographic projection together with the detailed data of fracture size and aperture. It is possible to estimate the crack tensor components using mathematical expectation of crack parameters treated as random variables. © 2014 Taylor & Francis Group, London.},
keywords = {},
pubstate = {published},
tppubtype = {inbook}
}
Many rock masses contain a large number of discontinuities which make oriented fracture sets. The case is more common for many types of rock. Fracturing exert a particularly marked influence on the anisotropy of physical properties of rocks. Such fractured rock mass can be treated as homogeneous, anisotropic porous medium. To describe fracture porosity a symmetric crack tensor depended on the geometry of the related cracks (aperture; size and orientation) is used. The direct in situ measurement are a sound basis for determining the crack tensor. The tensor is obtained by statistical treatment of the crack orientation data presented by a stereographic projection together with the detailed data of fracture size and aperture. It is possible to estimate the crack tensor components using mathematical expectation of crack parameters treated as random variables. © 2014 Taylor & Francis Group, London.
Idziak, A. F.
Estimation of crack tensor components for the different distributions of crack orientation Proceedings
Taylor and Francis - Balkema, 2014, ISBN: 9781138001497.
@proceedings{2-s2.0-84901379748,
title = {Estimation of crack tensor components for the different distributions of crack orientation},
author = { A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901379748&doi=10.1201%2fb16955-68&partnerID=40&md5=929a41345da65229748bc86b47e0f046},
doi = {10.1201/b16955-68},
isbn = {9781138001497},
year = {2014},
date = {2014-01-01},
journal = {Rock Engineering and Rock Mechanics: Structures in and on Rock Masses - Proceedings of EUROCK 2014, ISRM European Regional Symposium},
pages = {411-414},
publisher = {Taylor and Francis - Balkema},
abstract = {Many rock masses contain a large number of discontinuities which make oriented fracture sets. The case is more common for many types of rock. Fracturing exert a particularly marked influence on the anisotropy of physical properties of rocks. Such fractured rock mass can be treated as homogeneous, anisotropic porous medium. To describe fracture porosity a symmetric crack tensor depended on the geometry of the related cracks (aperture; size and orientation) is used. The direct in situ measurement are a sound basis for determining the crack tensor. The tensor is obtained by statistical treatment of the crack orientation data presented by a stereographic projection together with the detailed data of fracture size and aperture. It is possible to estimate the crack tensor components using mathematical expectation of crack parameters treated as random variables. © 2014 Taylor & Francis Group, London.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
Many rock masses contain a large number of discontinuities which make oriented fracture sets. The case is more common for many types of rock. Fracturing exert a particularly marked influence on the anisotropy of physical properties of rocks. Such fractured rock mass can be treated as homogeneous, anisotropic porous medium. To describe fracture porosity a symmetric crack tensor depended on the geometry of the related cracks (aperture; size and orientation) is used. The direct in situ measurement are a sound basis for determining the crack tensor. The tensor is obtained by statistical treatment of the crack orientation data presented by a stereographic projection together with the detailed data of fracture size and aperture. It is possible to estimate the crack tensor components using mathematical expectation of crack parameters treated as random variables. © 2014 Taylor & Francis Group, London.
2013
Idziak, A. F.; Stan-Kłeczek, I.
Estimation of crack density parameter for different distributions of crack size Proceedings
2013, ISBN: 9781138000568, (1).
@proceedings{2-s2.0-84878539623,
title = {Estimation of crack density parameter for different distributions of crack size},
author = { A.F. Idziak and I. Stan-Kłeczek},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878539623&partnerID=40&md5=5f6f162e3afd7909cbfe11ded8fba8ee},
isbn = {9781138000568},
year = {2013},
date = {2013-01-01},
journal = {Rock Dynamics and Applications - State of the Art: Proceedings of the 1st International Conference on Rock Dynamics and Applications, RocDyn-1 2013},
pages = {353-359},
abstract = {Fracturing exerts a particularly marked influence on the physical properties of rocks. Rock mass contains commonly a large number of discontinuities which can be distributed randomly in the rock bulk or can make oriented fracture sets. Many geotechnical classifications of rocks include crack density parameter as the important measure of rock quality. However, for full evaluation of rock fracturing and rock permeability, the knowledge about crack size distribution and volume crack density is essential. These data can often be assessed on the basis of measurements of crack traces observed on uncovered rock surface. In the paper two crack length distributions-normal and log-normal are considered. The methods of estimation of distribution parameters-mean value and variance of crack size as well as calculations of the mean crack volume and crack density parameter are described. These data present complex information about fractured rock mass important for the engineering purposes. © 2013 Taylor & Francis Group.},
note = {1},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
Fracturing exerts a particularly marked influence on the physical properties of rocks. Rock mass contains commonly a large number of discontinuities which can be distributed randomly in the rock bulk or can make oriented fracture sets. Many geotechnical classifications of rocks include crack density parameter as the important measure of rock quality. However, for full evaluation of rock fracturing and rock permeability, the knowledge about crack size distribution and volume crack density is essential. These data can often be assessed on the basis of measurements of crack traces observed on uncovered rock surface. In the paper two crack length distributions-normal and log-normal are considered. The methods of estimation of distribution parameters-mean value and variance of crack size as well as calculations of the mean crack volume and crack density parameter are described. These data present complex information about fractured rock mass important for the engineering purposes. © 2013 Taylor & Francis Group.
Stan-Kłeczek, I.; Idziak, A. F.
Study of the relation between cracks and the elastic properties of rock mass Proceedings
International Society for Rock Mechanics, 2013, ISBN: 9781138000803, (3).
@proceedings{2-s2.0-85059391025,
title = {Study of the relation between cracks and the elastic properties of rock mass},
author = { I. Stan-Kłeczek and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059391025&doi=10.1201%2fb15683-23&partnerID=40&md5=01c81a6a8a5e829914a2e0df98b42879},
doi = {10.1201/b15683-23},
isbn = {9781138000803},
year = {2013},
date = {2013-01-01},
journal = {ISRM International Symposium - EUROCK 2013},
pages = {157-160},
publisher = {International Society for Rock Mechanics},
abstract = {The crack systems which exist in rocks decide about their physical properties. Especially, they have an essential influence on velocity of seismic waves propagating through the fractured rock mass. The aim of the present study was to verify if fracturing is an important factor affecting the elastic properties of rock masses, particularly, generating the anisotropy of dynamic elastic moduli in sedimentary rocks from the southern part of Poland. The seismic anisotropy of the rock mass were measured using P.A.S.I. Seismograph (Mod. 16S24-N). The research was made along precise oriented radial seismic profiles. P-waves and S-waves velocities were established from recorded seismograms and then the values of dynamic elastic moduli were calculated for all profiles. The diagrams of azimuth distribution of elastic moduli showed an anisotropy of elastic properties of the investigated rocks. The maximal values of moduli agree with orientation of main crack sets or potential directions of weakening of the rock mass. Seismic methods, enabling the determination of dynamic elastic modulus are a useful tool to study the degree of fracturing and rock massifs quality assessment for engineering purposes. An important element is the fact that they are relatively inexpensive and fast. © 2013 Taylor & Francis Group, London.},
note = {3},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
The crack systems which exist in rocks decide about their physical properties. Especially, they have an essential influence on velocity of seismic waves propagating through the fractured rock mass. The aim of the present study was to verify if fracturing is an important factor affecting the elastic properties of rock masses, particularly, generating the anisotropy of dynamic elastic moduli in sedimentary rocks from the southern part of Poland. The seismic anisotropy of the rock mass were measured using P.A.S.I. Seismograph (Mod. 16S24-N). The research was made along precise oriented radial seismic profiles. P-waves and S-waves velocities were established from recorded seismograms and then the values of dynamic elastic moduli were calculated for all profiles. The diagrams of azimuth distribution of elastic moduli showed an anisotropy of elastic properties of the investigated rocks. The maximal values of moduli agree with orientation of main crack sets or potential directions of weakening of the rock mass. Seismic methods, enabling the determination of dynamic elastic modulus are a useful tool to study the degree of fracturing and rock massifs quality assessment for engineering purposes. An important element is the fact that they are relatively inexpensive and fast. © 2013 Taylor & Francis Group, London.
Idziak, A. F.; Stan-Kłeczek, I.
Estimation of crack density parameter for different distributions of crack size Book Chapter
In: pp. 353-359, CRC Press, 2013, ISBN: 9781315887067; 9781138000568, (1).
@inbook{2-s2.0-85054467105,
title = {Estimation of crack density parameter for different distributions of crack size},
author = { A.F. Idziak and I. Stan-Kłeczek},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85054467105&partnerID=40&md5=88e987a300c46d0fb159022892c7ba3d},
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year = {2013},
date = {2013-01-01},
journal = {Rock Dynamics and Applications - State of the Art},
pages = {353-359},
publisher = {CRC Press},
abstract = {Fracturing exerts a particularly marked influence on the physical properties of rocks. Rock mass contains commonly a large number of discontinuities which can be distributed randomly in the rock bulk or can make oriented fracture sets. Many geotechnical classifications of rocks include crack density parameter as the important measure of rock quality. However, for full evaluation of rock fracturing and rock permeability, the knowledge about crack size distribution and volume crack density is essential. These data can often be assessed on the basis of measurements of crack traces observed on uncovered rock surface. In the paper two crack length distributions-normal and log-normal are considered. The methods of estimation of distribution parameters-mean value and variance of crack size as well as calculations of the mean crack volume and crack density parameter are described. These data present complex information about fractured rock mass important for the engineering purposes. © 2013 Taylor & Francis Group, London.},
note = {1},
keywords = {},
pubstate = {published},
tppubtype = {inbook}
}
Fracturing exerts a particularly marked influence on the physical properties of rocks. Rock mass contains commonly a large number of discontinuities which can be distributed randomly in the rock bulk or can make oriented fracture sets. Many geotechnical classifications of rocks include crack density parameter as the important measure of rock quality. However, for full evaluation of rock fracturing and rock permeability, the knowledge about crack size distribution and volume crack density is essential. These data can often be assessed on the basis of measurements of crack traces observed on uncovered rock surface. In the paper two crack length distributions-normal and log-normal are considered. The methods of estimation of distribution parameters-mean value and variance of crack size as well as calculations of the mean crack volume and crack density parameter are described. These data present complex information about fractured rock mass important for the engineering purposes. © 2013 Taylor & Francis Group, London.
2012
Stan-Kłeczek, I.; Idziak, A. F.
International Society for Rock Mechanics, 2012.
@proceedings{2-s2.0-85059054943,
title = {A comparison of the effect of fracturing on the anisotropy of physical properties in carbonate and igneous rocks},
author = { I. Stan-Kłeczek and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059054943&partnerID=40&md5=cf00656d25ef1cd9468eacf548f88296},
year = {2012},
date = {2012-01-01},
journal = {ISRM International Symposium - EUROCK 2012},
publisher = {International Society for Rock Mechanics},
abstract = {The article presents the relationship between the main crack systems and the physical properties of two types of rocks. The existence of cracks modifies the elastic and electric properties of rocks. These modifications depend on crack density as well as the geometry and properties of material filling the cracks (water; gas or silt). The preferred orientation of crack systems involves the anisotropy of seismic wave velocity and rock resistivity. The existence of a relationship between cracks and the seismic or electric anisotropy allows geophysical methods to be used for the determination of fracture density and the orientation of crack systems. The present study was carried out in the Triassic dolomite and Permian diabase located in the southern part of Poland. Measurements of the seismic and electric anisotropy of the rock mass were done along radial profiles having a common central point with the use of P.A.S.I. Seismograph (Mod.16S24-N) and an ABEM Terrameter SAS 300 resistivity meter. Results of field measurements were used to estimate the components of the velocity tensor and conductivity tensor characterising studied sites. This allowed to establish the relationship between the characteristic parameters of the tensors. Determination of these parameters in turn enabled to compare crack-induced anisotropy in both investigated rock masses. © BeFo and ISRM, 2012.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
The article presents the relationship between the main crack systems and the physical properties of two types of rocks. The existence of cracks modifies the elastic and electric properties of rocks. These modifications depend on crack density as well as the geometry and properties of material filling the cracks (water; gas or silt). The preferred orientation of crack systems involves the anisotropy of seismic wave velocity and rock resistivity. The existence of a relationship between cracks and the seismic or electric anisotropy allows geophysical methods to be used for the determination of fracture density and the orientation of crack systems. The present study was carried out in the Triassic dolomite and Permian diabase located in the southern part of Poland. Measurements of the seismic and electric anisotropy of the rock mass were done along radial profiles having a common central point with the use of P.A.S.I. Seismograph (Mod.16S24-N) and an ABEM Terrameter SAS 300 resistivity meter. Results of field measurements were used to estimate the components of the velocity tensor and conductivity tensor characterising studied sites. This allowed to establish the relationship between the characteristic parameters of the tensors. Determination of these parameters in turn enabled to compare crack-induced anisotropy in both investigated rock masses. © BeFo and ISRM, 2012.
2011
Idziak, A. F.; Dubiel, R.
Geophysics in Mining and Environmental Protection Journal Article
In: GeoPlanet: Earth and Planetary Sciences, vol. 3, 2011, ISSN: 21905193, (8).
@article{2-s2.0-84894627955,
title = {Geophysics in Mining and Environmental Protection},
author = { A.F. Idziak and R. Dubiel},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894627955&doi=10.1007%2f978-3-642-19097-1&partnerID=40&md5=ae97e02919d44ad0ab64fe4e1829ba80},
doi = {10.1007/978-3-642-19097-1},
issn = {21905193},
year = {2011},
date = {2011-01-01},
journal = {GeoPlanet: Earth and Planetary Sciences},
volume = {3},
abstract = {[No abstract available]},
note = {8},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
[No abstract available]
Idziak, A. F.; Stan-Kłeczek, I.
The Use of Seismic Methods to Determine Potential Directions of Underground Water Flow in a Fractured Rock Mass Journal Article
In: GeoPlanet: Earth and Planetary Sciences, vol. 3, pp. 101-108, 2011, ISSN: 21905193, (1).
@article{2-s2.0-84894623264,
title = {The Use of Seismic Methods to Determine Potential Directions of Underground Water Flow in a Fractured Rock Mass},
author = { A.F. Idziak and I. Stan-Kłeczek},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894623264&doi=10.1007%2f978-3-642-19097-1_10&partnerID=40&md5=441deeba6e81ccd63876aa7800d5dd75},
doi = {10.1007/978-3-642-19097-1_10},
issn = {21905193},
year = {2011},
date = {2011-01-01},
journal = {GeoPlanet: Earth and Planetary Sciences},
volume = {3},
pages = {101-108},
abstract = {In fractured rock mass, the orientation of cracks causes anisotropy of different physical properties, including the permeability coefficient. In rocks where the permeability of rock matrix may be negligible, flow occurs mainly through the connected fractures, or fracture networks. The rock mass which contains fractures of this kind can be treated as a homogeneous anisotropic porous medium to formulate the permeability tensor. This can be possible owing to introduction of crack tensor which depends only on the aperture, size and orientation of the related cracks. The crack tensor is coaxial with the permeability tensor. The relation between the permeability tensor and the crack tensor enables us to utilize the measurement of anisotropy of seismic wave velocity to establish potential directions of underground water flow. © Springer-Verlag Berlin Heidelberg 2011.},
note = {1},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In fractured rock mass, the orientation of cracks causes anisotropy of different physical properties, including the permeability coefficient. In rocks where the permeability of rock matrix may be negligible, flow occurs mainly through the connected fractures, or fracture networks. The rock mass which contains fractures of this kind can be treated as a homogeneous anisotropic porous medium to formulate the permeability tensor. This can be possible owing to introduction of crack tensor which depends only on the aperture, size and orientation of the related cracks. The crack tensor is coaxial with the permeability tensor. The relation between the permeability tensor and the crack tensor enables us to utilize the measurement of anisotropy of seismic wave velocity to establish potential directions of underground water flow. © Springer-Verlag Berlin Heidelberg 2011.
Idziak, A. F.; Dubiel, R.
Preface Book
2011, ISSN: 21905193.
@book{2-s2.0-84894607894,
title = {Preface},
author = { A.F. Idziak and R. Dubiel},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894607894&partnerID=40&md5=d46e69422b71e7d1a36da037a4117a5a},
issn = {21905193},
year = {2011},
date = {2011-01-01},
journal = {GeoPlanet: Earth and Planetary Sciences},
volume = {3},
pages = {ix-x},
abstract = {[No abstract available]},
keywords = {},
pubstate = {published},
tppubtype = {book}
}
[No abstract available]
2010
Idziak, A. F.; Stan-Kłeczek, I.; Pilarek, A.
Study of rock anisotropy involved by cracks using combined geophysical methods Proceedings
2010, ISBN: 9780415586542, (4).
@proceedings{2-s2.0-84860132292,
title = {Study of rock anisotropy involved by cracks using combined geophysical methods},
author = { A.F. Idziak and I. Stan-Kłeczek and A. Pilarek},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84860132292&partnerID=40&md5=2f44c93002e1ad9d96dd9e8239b835e2},
isbn = {9780415586542},
year = {2010},
date = {2010-01-01},
journal = {Rock Mechanics in Civil and Environmental Engineering - Proceedings of the European Rock Mechanics Symposium, EUROCK 2010},
pages = {297-300},
abstract = {The present study concern carbonate rocks from south Poland. Measurements of seismic and electric anisotropy of the rock mass were done along radial profiles having common central point using 12- chanels seismometerABM Terralock Marc 6+ and resistivity meterABM Terrameter SAS 300. Results of field measurementswere interpreted to estimate components of velocity tensor and conductivity tensor in the site under study. It allowed to establish the relationship between characteristic parameters of the tensors. This knowledge allows to find out mean direction of cracks sets and consider about fracture saturation in sites where the rocks are inaccessible to direct observation. © 2010 Taylor & Francis Group.},
note = {4},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
The present study concern carbonate rocks from south Poland. Measurements of seismic and electric anisotropy of the rock mass were done along radial profiles having common central point using 12- chanels seismometerABM Terralock Marc 6+ and resistivity meterABM Terrameter SAS 300. Results of field measurementswere interpreted to estimate components of velocity tensor and conductivity tensor in the site under study. It allowed to establish the relationship between characteristic parameters of the tensors. This knowledge allows to find out mean direction of cracks sets and consider about fracture saturation in sites where the rocks are inaccessible to direct observation. © 2010 Taylor & Francis Group.
Stan-Kłeczek, I.; Idziak, A. F.
The method of fracture research based on seismic refraction Proceedings
2010, ISBN: 9780415804813.
@proceedings{2-s2.0-84859900493,
title = {The method of fracture research based on seismic refraction},
author = { I. Stan-Kłeczek and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84859900493&partnerID=40&md5=198079b502485f9400bf80956ac06065},
isbn = {9780415804813},
year = {2010},
date = {2010-01-01},
journal = {Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst - Proceedings of the Regional Symposium of the International Society for Rock Mechanics, EUROCK 2009},
pages = {153-156},
abstract = {The seismic refraction method applies to a very wide range of scientific and technical problems. The present research were done for sedimentary rocks (sandstone; limestone) and igneous rock (diabase) localized in southern Poland. It was measured seismic waves velocity in the surface layers of rock mass and the strike azimuth and dip angle of cracks. Obtained data allowed us to calculate twodimensional crack tensors and velocity tensors in planes parallel to the layer surface. The application of tensor calculus enable to take into account both geometry and orientation of cracks. The obtained results confirm that the directions of major axes of second rank velocity tensor prove the relationship consistent with predictions of theoretical models. Thanks to these dependences we can use seismic methods to study the cracks anisotropy in rocks inaccessible for direct observations. © 2010 Taylor & Francis Group, London.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
The seismic refraction method applies to a very wide range of scientific and technical problems. The present research were done for sedimentary rocks (sandstone; limestone) and igneous rock (diabase) localized in southern Poland. It was measured seismic waves velocity in the surface layers of rock mass and the strike azimuth and dip angle of cracks. Obtained data allowed us to calculate twodimensional crack tensors and velocity tensors in planes parallel to the layer surface. The application of tensor calculus enable to take into account both geometry and orientation of cracks. The obtained results confirm that the directions of major axes of second rank velocity tensor prove the relationship consistent with predictions of theoretical models. Thanks to these dependences we can use seismic methods to study the cracks anisotropy in rocks inaccessible for direct observations. © 2010 Taylor & Francis Group, London.
2008
Idziak, A. F.; Zuberek, W. M.
Geophysical studies at the University of Silesia [Studia geofizyczne na Uniwersytecie Śla̧skim] Journal Article
In: Przeglad Geofizyczny, vol. 53, no. 2, pp. 195-200, 2008, ISSN: 00332135.
@article{2-s2.0-84859739463,
title = {Geophysical studies at the University of Silesia [Studia geofizyczne na Uniwersytecie Śla̧skim]},
author = { A.F. Idziak and W.M. Zuberek},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84859739463&partnerID=40&md5=4f9b8c53ee391abf43bd957696eb33d8},
issn = {00332135},
year = {2008},
date = {2008-01-01},
journal = {Przeglad Geofizyczny},
volume = {53},
number = {2},
pages = {195-200},
abstract = {In the academic year 2008/2009 the Faculty of Earth Sciences together with Faculty of Mathematics, Physics and Chemistry (the Institute of Physics) of the University of Silesia open the autonomic, interdepartamental two-stage study system of education in geophysics including the Bachelor's level (three years) and Master's level (additional two years). Up to now education in geology or geophysics with speciality of geophysics has been provided. Students are awarded MSc degree either in geology or in physics depending on the place they chose to submit their MSc theses. The graduates can find a job and they have a good reputation and opinion therefore the idea of opening the geophysical education at the University of Silesia has appeared useful and advisable.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In the academic year 2008/2009 the Faculty of Earth Sciences together with Faculty of Mathematics, Physics and Chemistry (the Institute of Physics) of the University of Silesia open the autonomic, interdepartamental two-stage study system of education in geophysics including the Bachelor's level (three years) and Master's level (additional two years). Up to now education in geology or geophysics with speciality of geophysics has been provided. Students are awarded MSc degree either in geology or in physics depending on the place they chose to submit their MSc theses. The graduates can find a job and they have a good reputation and opinion therefore the idea of opening the geophysical education at the University of Silesia has appeared useful and advisable.
Stan-Kłeczek, I.; Idziak, A. F.
Anisotropy of elastic properties of rock mass induced by cracks Proceedings
vol. 5, no. 2, 2008, ISSN: 12149705, (16).
@proceedings{2-s2.0-77953784253,
title = {Anisotropy of elastic properties of rock mass induced by cracks},
author = { I. Stan-Kłeczek and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-77953784253&partnerID=40&md5=aa1db53a8c8588fc3440a3942d368489},
issn = {12149705},
year = {2008},
date = {2008-01-01},
journal = {Acta Geodynamica et Geomaterialia},
volume = {5},
number = {2},
pages = {153-159},
abstract = {Fractures commonly existing in rocks flow on their elastic properties and hence on velocity of seismic waves propagating in the rock mass. This relation allows to use seismic methods to determine the fracture density and the orientation of fracture sets. This paper presents results of the research which concern directional changes of dynamic elastic moduli in sedimentary and igneous rocks from south part of Poland. These moduli depend on density of the rock matrix as well as density and orientation of cracks and flow on seismic wave velocity. The seismic equipment Terraloc MK6 (ABEM) was used for the measurements of seismic wave velocity in the surface layers of rock mass. The research was made along precise oriented radial seismic profiles. P-waves and S-waves velocities were established from recorded seismograms. The values of P and S waves velocity allowed to calculate values of dynamic elastic moduli for all profiles. The results were presented on diagrams of azimuth distribution of elastic moduli, and diagrams of dynamic elastic moduli versus P - wave velocity. The diagrams showed an anisotropy of elastic properties of the investigated rocks. The maximal values of moduli agree with maximal values of velocity and also with orientation of main crack sets or potential directions of weakening of rock mass. Obtained results point that the seismic methods allow to assign the directions of weakening of rocks what can be for example use during preliminary designing, constructing and exploitation of tunnels.},
note = {16},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
Fractures commonly existing in rocks flow on their elastic properties and hence on velocity of seismic waves propagating in the rock mass. This relation allows to use seismic methods to determine the fracture density and the orientation of fracture sets. This paper presents results of the research which concern directional changes of dynamic elastic moduli in sedimentary and igneous rocks from south part of Poland. These moduli depend on density of the rock matrix as well as density and orientation of cracks and flow on seismic wave velocity. The seismic equipment Terraloc MK6 (ABEM) was used for the measurements of seismic wave velocity in the surface layers of rock mass. The research was made along precise oriented radial seismic profiles. P-waves and S-waves velocities were established from recorded seismograms. The values of P and S waves velocity allowed to calculate values of dynamic elastic moduli for all profiles. The results were presented on diagrams of azimuth distribution of elastic moduli, and diagrams of dynamic elastic moduli versus P - wave velocity. The diagrams showed an anisotropy of elastic properties of the investigated rocks. The maximal values of moduli agree with maximal values of velocity and also with orientation of main crack sets or potential directions of weakening of rock mass. Obtained results point that the seismic methods allow to assign the directions of weakening of rocks what can be for example use during preliminary designing, constructing and exploitation of tunnels.
Idziak, A. F.; Wysowska-Świebodzińska, A.
Geophysical survey of post-glacial deposits Proceedings
vol. 5, no. 2, 2008, ISSN: 12149705, (2).
@proceedings{2-s2.0-77953778890,
title = {Geophysical survey of post-glacial deposits},
author = { A.F. Idziak and A. Wysowska-Świebodzińska},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-77953778890&partnerID=40&md5=ec9d8de9c41c9bf659d6c444096e6edd},
issn = {12149705},
year = {2008},
date = {2008-01-01},
journal = {Acta Geodynamica et Geomaterialia},
volume = {5},
number = {2},
pages = {197-203},
abstract = {The aim of presented research was to recognize a fine geological structure of post-glacial sedimentary forms. The survey was conducted in the South Pomeranian Lake District (north - western Poland) in the vicinity of Pile Lake and Strzeszyn Lake. The geoelectrical equipment Terrameter SAS 4000 (ABEM) with LUND Imaging System was used for the measurements of apparent resistivity of rock mass. The resistivity imaging was carried out implementing Schlumberger S-protocol with 41 electrodes. Research was done along profiles crossing a border between two sedimentary forms. It allowed to recognize and compare the layered structures of the different post - glacial deposits down to 70 meters below the surface. The data were interpreted on the base of two-dimensional inversion methods. Results were correlated and compared with geological data accessible in the literature concerning of the research area. Geophysical prospecting gave good results and allowed to recognize a fine geological structure of the deposits.},
note = {2},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
The aim of presented research was to recognize a fine geological structure of post-glacial sedimentary forms. The survey was conducted in the South Pomeranian Lake District (north - western Poland) in the vicinity of Pile Lake and Strzeszyn Lake. The geoelectrical equipment Terrameter SAS 4000 (ABEM) with LUND Imaging System was used for the measurements of apparent resistivity of rock mass. The resistivity imaging was carried out implementing Schlumberger S-protocol with 41 electrodes. Research was done along profiles crossing a border between two sedimentary forms. It allowed to recognize and compare the layered structures of the different post - glacial deposits down to 70 meters below the surface. The data were interpreted on the base of two-dimensional inversion methods. Results were correlated and compared with geological data accessible in the literature concerning of the research area. Geophysical prospecting gave good results and allowed to recognize a fine geological structure of the deposits.
2006
Mirkowski, Z.; Tomaszewska, R.; Idziak, A. F.
vol. 29, no. 395, 2006, ISSN: 0138015X.
@proceedings{2-s2.0-34247642251,
title = {Calculation of block divisibility using structural and refraction seismic methods in Debnik and Imielin raw material deposits},
author = { Z. Mirkowski and R. Tomaszewska and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-34247642251&partnerID=40&md5=5b7b3ac91a0a224a10df50c973a7952b},
issn = {0138015X},
year = {2006},
date = {2006-01-01},
journal = {Publications of the Institute of Geophysics, Polish Academy of Sciences, Series M: Miscellanea},
volume = {29},
number = {395},
pages = {223-229},
abstract = {The structural research was done in the Silesian-Kraków Upland in two open-cuts of building stone: Dȩbnik (limestone) and Imielin (dolomite). As a result of the investigations, the directions of fracture systems were delineated and block divisibility was calculated, as principal parameters in the documentation of building stone. Simultaneously, geophysical methods were applied using shallow seismic refraction. According to the azimuthal velocity of wave propagation, the orientation of fracture was estimated. In Dȩbnik a strong anisotropy of seismic waves occured and there was an excellent correlation between structural and seismic measurements, whereas in Imielin this correlation was rather weak, which was probably caused by using explosives for mining in the open-cut. The calculation of block divisibility using a seismic method was not possible in this case.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
The structural research was done in the Silesian-Kraków Upland in two open-cuts of building stone: Dȩbnik (limestone) and Imielin (dolomite). As a result of the investigations, the directions of fracture systems were delineated and block divisibility was calculated, as principal parameters in the documentation of building stone. Simultaneously, geophysical methods were applied using shallow seismic refraction. According to the azimuthal velocity of wave propagation, the orientation of fracture was estimated. In Dȩbnik a strong anisotropy of seismic waves occured and there was an excellent correlation between structural and seismic measurements, whereas in Imielin this correlation was rather weak, which was probably caused by using explosives for mining in the open-cut. The calculation of block divisibility using a seismic method was not possible in this case.
Rudziński, Ł.; Idziak, A. F.
Energy distribution of induced seismic events occurring in Wesoła coalmine, Poland Proceedings
vol. 29, no. 395, 2006, ISSN: 0138015X.
@proceedings{2-s2.0-34247641237,
title = {Energy distribution of induced seismic events occurring in Wesoła coalmine, Poland},
author = { Ł. Rudziński and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-34247641237&partnerID=40&md5=f10d7c5e8d8d4d36bf9e097922676fb5},
issn = {0138015X},
year = {2006},
date = {2006-01-01},
journal = {Publications of the Institute of Geophysics, Polish Academy of Sciences, Series M: Miscellanea},
volume = {29},
number = {395},
pages = {27-36},
abstract = {The paper presents a study on energy distribution of seismic events from the Wesoła coalmine (Mysłowice; Poland). The seismic catalogue comprising 14,514 tremors occurring between January 2000 and March 2004 was analysed. Empirical cumulative distribution functions of energy (CDF) were calculated and estimated using Gumbel's asymptotic distributions. It was stated that the experimental CDFs of low energy events can be estimated by Gumbel's theoretical distributions of type II.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
The paper presents a study on energy distribution of seismic events from the Wesoła coalmine (Mysłowice; Poland). The seismic catalogue comprising 14,514 tremors occurring between January 2000 and March 2004 was analysed. Empirical cumulative distribution functions of energy (CDF) were calculated and estimated using Gumbel's asymptotic distributions. It was stated that the experimental CDFs of low energy events can be estimated by Gumbel's theoretical distributions of type II.
Stan, I.; Idziak, A. F.
Anisotropy of seismic wave velocity in a chosen rock mass Proceedings
vol. 29, no. 395, 2006, ISSN: 0138015X, (2).
@proceedings{2-s2.0-34247636758,
title = {Anisotropy of seismic wave velocity in a chosen rock mass},
author = { I. Stan and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-34247636758&partnerID=40&md5=d07a3281e6c6fe6db129c38c36254477},
issn = {0138015X},
year = {2006},
date = {2006-01-01},
journal = {Publications of the Institute of Geophysics, Polish Academy of Sciences, Series M: Miscellanea},
volume = {29},
number = {395},
pages = {211-222},
abstract = {In the present research, a relationship between seismic wave velocity anisotropy and the distribution of crack orientation parameters was studied using interpretation methods based on tensor calculus. Objects of the research were basalt deposit located within the Sudetian Monocline and diabase deposit located within the Carpathian Foothill. The relationship between velocity and azimuth of seismic profile was established. It was found that the average strike azimuth of separated vertical crack systems determined by direct fracture measurements agreed with the direction of maximum velocity. Results of the present research were compared with the results of earlier measurements carried out in limestone and sandstone deposits located within the Polish Carpathians. The existence of relationships between seismic wave velocity anisotropy and fracture parameters makes it possible to use seismic methods for determining the fracture density and the orientation of fracture systems.},
note = {2},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
In the present research, a relationship between seismic wave velocity anisotropy and the distribution of crack orientation parameters was studied using interpretation methods based on tensor calculus. Objects of the research were basalt deposit located within the Sudetian Monocline and diabase deposit located within the Carpathian Foothill. The relationship between velocity and azimuth of seismic profile was established. It was found that the average strike azimuth of separated vertical crack systems determined by direct fracture measurements agreed with the direction of maximum velocity. Results of the present research were compared with the results of earlier measurements carried out in limestone and sandstone deposits located within the Polish Carpathians. The existence of relationships between seismic wave velocity anisotropy and fracture parameters makes it possible to use seismic methods for determining the fracture density and the orientation of fracture systems.
Idziak, A. F.
2006, ISSN: 0138015X.
@book{2-s2.0-34247578160,
title = {Mining and Environmental Geophysics selected and revised contributions to the XXX Polish-Czech-Slovakian Symposium},
author = { A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-34247578160&partnerID=40&md5=89377198d7b206f92d97e299dc152f46},
issn = {0138015X},
year = {2006},
date = {2006-01-01},
journal = {Publications of the Institute of Geophysics, Polish Academy of Sciences, Series M: Miscellanea},
volume = {29},
number = {395},
pages = {3-4},
abstract = {[No abstract available]},
keywords = {},
pubstate = {published},
tppubtype = {book}
}
[No abstract available]
Idziak, A. F.; Stan-Kłeczek, I.
Geomechanical properties of fractured carbonate rock mass determined by geophysical methods Proceedings
Taylor and Francis/ Balkema, 2006, ISBN: 0415410010; 9780415410014, (12).
@proceedings{2-s2.0-53749087939,
title = {Geomechanical properties of fractured carbonate rock mass determined by geophysical methods},
author = { A.F. Idziak and I. Stan-Kłeczek},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-53749087939&doi=10.1201%2f9781439833469.ch80&partnerID=40&md5=3ff9155e71a2e9b584772e4c3cddc901},
doi = {10.1201/9781439833469.ch80},
isbn = {0415410010; 9780415410014},
year = {2006},
date = {2006-01-01},
journal = {Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics},
pages = {551-556},
publisher = {Taylor and Francis/ Balkema},
abstract = {Fractures are the most important factor which influence on anisotropy of physical properties of rocks.Geophysical methods, especially seismic methods are useful in investigations of fractured rocks. Carbonate rocks of different ages located within the Silesian Upland and the Krakow-Czestochowa Upland, southern Poland, were the object of present research. Seismic measurements were carried out in the same quarries where the fracture parameters were measured. Velocity tensors and crack tensors were calculated and compared. The present research allowed to establish the relationship between characteristic parameters of crack tensor and velocity tensor in carbonate rocks. © 2006 Taylor & Francis Group.},
note = {12},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
Fractures are the most important factor which influence on anisotropy of physical properties of rocks.Geophysical methods, especially seismic methods are useful in investigations of fractured rocks. Carbonate rocks of different ages located within the Silesian Upland and the Krakow-Czestochowa Upland, southern Poland, were the object of present research. Seismic measurements were carried out in the same quarries where the fracture parameters were measured. Velocity tensors and crack tensors were calculated and compared. The present research allowed to establish the relationship between characteristic parameters of crack tensor and velocity tensor in carbonate rocks. © 2006 Taylor & Francis Group.
2005
Stan, I.; Idziak, A. F.
Anisotropy of seismic waves velocity due to the fracturing in chosen rock mass Proceedings
2005, ISBN: 0415380421; 9780415380423, (10).
@proceedings{2-s2.0-84856923855,
title = {Anisotropy of seismic waves velocity due to the fracturing in chosen rock mass},
author = { I. Stan and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84856923855&partnerID=40&md5=3c08e60f9f5dbd6fadea17102bd8117a},
isbn = {0415380421; 9780415380423},
year = {2005},
date = {2005-01-01},
journal = {Impact of Human Activity on the Geological Environment - Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2005},
pages = {579-586},
abstract = {In the present research a relationship between seismic wave velocity anisotropy and the distribution of crack orientation parameters was studied using interpretation methods based on tensor calculus. Objects of the research were limestone and sandstone deposits located within the Polish Carpathians. The relationship between velocity and azimuth of seismic profile was established. It was found that the average strike azimuth of separated vertical crack systems determined by direct fracture measurements agreed with the direction of maximum velocity. Results of the present research were compared with the results of earlier measurements carried out in carbonate rocks from the Upper Silesian Coal Basin. The existence of relationships between seismic wave velocity anisotropy and fracture parameters make it possible to use seismic methods for determining the fracture density and the orientation of fracture systems. © 2005 Taylor & Francis Group.},
note = {10},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
In the present research a relationship between seismic wave velocity anisotropy and the distribution of crack orientation parameters was studied using interpretation methods based on tensor calculus. Objects of the research were limestone and sandstone deposits located within the Polish Carpathians. The relationship between velocity and azimuth of seismic profile was established. It was found that the average strike azimuth of separated vertical crack systems determined by direct fracture measurements agreed with the direction of maximum velocity. Results of the present research were compared with the results of earlier measurements carried out in carbonate rocks from the Upper Silesian Coal Basin. The existence of relationships between seismic wave velocity anisotropy and fracture parameters make it possible to use seismic methods for determining the fracture density and the orientation of fracture systems. © 2005 Taylor & Francis Group.
2003
Ćmiel, S. R.; Idziak, A. F.
no. 1, 2003, (2).
@proceedings{2-s2.0-1842610551,
title = {Optical Anisotropy of Coal as an Indicator of Paleostress Field in the Fault Zones of the Upper Silesian Coal Basin, Poland},
author = { S.R. Ćmiel and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-1842610551&partnerID=40&md5=1378fbe004ea4af285f1b713dec0ac9e},
year = {2003},
date = {2003-01-01},
journal = {Australasian Institute of Mining and Metallurgy Publication Series},
number = {1},
pages = {215-218},
abstract = {The aim of the present study was an application of coal optical property measurements for analysis of paleostress field existing in fault zones of the Upper Silesian Coal Basin (USCB) during the coalification of organic matter. Measurements of vitrinite reflectance were carried out on coal samples taken near a hanging stope of the Klodnicki fault. Other samples had been taken in vicinity of the Krzyzowicki fault. The Klodnicki fault is one of the main tectonic discontinuities in the northern part of the USCB. It is postulated that its origin is related to the deep-rooted latitudinal discontinuity in crystalline basement of the basin. The Krzyzowicki fault is located in the western part of the USCB where fold tectonic style dominates. Vitrinite, one of the basic components of hard coal is generally considered as optically anisotropic material. Anisotropy of physical properties is induced mainly by stress, which arranges vitrinite structure. Vitrinite anisotropy can be described by an ellipsoidal model called reflectance indicating surface (RIS) which is a geometrical representation of the optical anisotropy tensor. The investigation of the RIS for vitrinite was carried out on coal samples. The apparent maximum and minimum reflectance values measured for a single vitrinite particle were plotted against corresponding bireflectance to construct the reflectance crossplot. Interpretation of this plot yielded the magnitudes of the RIS three principal axes. The data obtained point to differences in optical anisotropy of coal under the study. The coal samples taken from block tectonic zone near the Klodnicki fault had mean reflectance value of less than 0.80 per cent. Their anisotropy coefficients were about 0.1. Optical properties of coal changed from the biaxial positive in the western segment of the fault to the biaxial negative in its eastern part. It suggests that past tectonic stress was greater in the western part of the zone than in the eastern one. Coal originated from a fold tectonic zone at the vicinity of the Krzyzowicki fault has mean reflectance value much greater than from previous region (≈1.20 per cent). Its optical anisotropy coefficient is equal to about 0.07. It suggests that paleostress field was more isotropic. The presented study shows the usefulness of coal reflectance measurements in the analysis of paleostress field existing during coalification process.},
note = {2},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
The aim of the present study was an application of coal optical property measurements for analysis of paleostress field existing in fault zones of the Upper Silesian Coal Basin (USCB) during the coalification of organic matter. Measurements of vitrinite reflectance were carried out on coal samples taken near a hanging stope of the Klodnicki fault. Other samples had been taken in vicinity of the Krzyzowicki fault. The Klodnicki fault is one of the main tectonic discontinuities in the northern part of the USCB. It is postulated that its origin is related to the deep-rooted latitudinal discontinuity in crystalline basement of the basin. The Krzyzowicki fault is located in the western part of the USCB where fold tectonic style dominates. Vitrinite, one of the basic components of hard coal is generally considered as optically anisotropic material. Anisotropy of physical properties is induced mainly by stress, which arranges vitrinite structure. Vitrinite anisotropy can be described by an ellipsoidal model called reflectance indicating surface (RIS) which is a geometrical representation of the optical anisotropy tensor. The investigation of the RIS for vitrinite was carried out on coal samples. The apparent maximum and minimum reflectance values measured for a single vitrinite particle were plotted against corresponding bireflectance to construct the reflectance crossplot. Interpretation of this plot yielded the magnitudes of the RIS three principal axes. The data obtained point to differences in optical anisotropy of coal under the study. The coal samples taken from block tectonic zone near the Klodnicki fault had mean reflectance value of less than 0.80 per cent. Their anisotropy coefficients were about 0.1. Optical properties of coal changed from the biaxial positive in the western segment of the fault to the biaxial negative in its eastern part. It suggests that past tectonic stress was greater in the western part of the zone than in the eastern one. Coal originated from a fold tectonic zone at the vicinity of the Krzyzowicki fault has mean reflectance value much greater than from previous region (≈1.20 per cent). Its optical anisotropy coefficient is equal to about 0.07. It suggests that paleostress field was more isotropic. The presented study shows the usefulness of coal reflectance measurements in the analysis of paleostress field existing during coalification process.
2002
Ćmiel, S. R.; Idziak, A. F.
In: Publications of the Institute of Geophysics, Polish Academy of Sciences, Series M: Miscellanea, vol. 24, no. 340, pp. 205-214, 2002, ISSN: 0138015X.
@article{2-s2.0-0037003684,
title = {Characteristics of paleostress field in the Kłodnicki fault zone (Upper Silesian Coal Basin) based on optical anisotropy of coal [Charakterystyka pola naprezeń tektonicznych w rejonie uskoku kłodnickiego w GZW na podstawie anizotropii optycznej wegla]},
author = { S.R. Ćmiel and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0037003684&partnerID=40&md5=df3672dfc2fe3c4f044a64f5cfca0df7},
issn = {0138015X},
year = {2002},
date = {2002-01-01},
journal = {Publications of the Institute of Geophysics, Polish Academy of Sciences, Series M: Miscellanea},
volume = {24},
number = {340},
pages = {205-214},
abstract = {The aim of the present study was an application of coal optical property measurements for analysis of structural development of the Kłodnicki fault zone - one of the main tectonic discontinuities in the Upper Silesian Coal Basin (the USCB). Optical properties of vitrinite depend on physical conditions during coalification; therefore, it is possible to determine the process of coal basin development basing on reflectance anisotropy measurements. Measurements of vitrinite reflectance were carried out on six coal samples. Four of them had been taken near a hanging stope of the Kłodnicki fault in coal fields belonging to the Wujek mine and Staszic mine. Two other samples had been taken on opposite stopes of the Krzyzowicki fault in mining area of the Pniówek mine. Vitrinite reflectance measurements were done using a petrological microscope with linearly polarized light source. Maximum and minimum apparent reflectance values (R' max and R' min) were measured. Vitrinite anisotropy was described by Reflectance Indicating Surface (the RIS) which was a geometrical representation of the optical anisotropy tensor. The presented study shows the usefulness of coal reflectance measurements in the analysis of paleostress field existing during the forming of coal basin when coalification process continued.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The aim of the present study was an application of coal optical property measurements for analysis of structural development of the Kłodnicki fault zone - one of the main tectonic discontinuities in the Upper Silesian Coal Basin (the USCB). Optical properties of vitrinite depend on physical conditions during coalification; therefore, it is possible to determine the process of coal basin development basing on reflectance anisotropy measurements. Measurements of vitrinite reflectance were carried out on six coal samples. Four of them had been taken near a hanging stope of the Kłodnicki fault in coal fields belonging to the Wujek mine and Staszic mine. Two other samples had been taken on opposite stopes of the Krzyzowicki fault in mining area of the Pniówek mine. Vitrinite reflectance measurements were done using a petrological microscope with linearly polarized light source. Maximum and minimum apparent reflectance values (R' max and R' min) were measured. Vitrinite anisotropy was described by Reflectance Indicating Surface (the RIS) which was a geometrical representation of the optical anisotropy tensor. The presented study shows the usefulness of coal reflectance measurements in the analysis of paleostress field existing during the forming of coal basin when coalification process continued.
1999
Idziak, A. F.
A study of spatial distribution of induced seismicity in the Upper Silesian Coal Basin Journal Article
In: Natural Hazards, vol. 19, no. 2-3, pp. 97-105, 1999, ISSN: 0921030X, (6).
@article{2-s2.0-0033490688,
title = {A study of spatial distribution of induced seismicity in the Upper Silesian Coal Basin},
author = { A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0033490688&doi=10.1023%2fa%3a1008089931203&partnerID=40&md5=007d9c7d5f34d84512c643c5788fcbcb},
doi = {10.1023/a:1008089931203},
issn = {0921030X},
year = {1999},
date = {1999-01-01},
journal = {Natural Hazards},
volume = {19},
number = {2-3},
pages = {97-105},
publisher = {Springer Netherlands},
abstract = {The Upper Silesian Coal Basin (USCB) is a region where high seismic activity is observed. Most of these seismic events have a local magnitude not exceeding 2.3. Their location and type of focal mechanism suggest that they are connected with new discontinuities in the rock mass caused by mining activity. Shocks with higher magnitude are also observed but their frequency is much lower. The strong events have a different focal mechanism than the low energetic events. The spatial distribution of shock epicentres is not uniform in the USCB area and shows the fractal character of seismic phenomena. Despite extensive mining activity throughout the area, the epicentres of strong events are concentrated in four regions belonging to different geological units. The temporal variability of epicentre co-ordinates and the general decrease of seismic activity points to the migration of seismicity across the investigated area. Analysing the spatial and temporal distributions of the strongest shocks, one can suppose this area to be critically self-organised. These facts suggest that induced seismicity in the USCB is triggered by a nonlinear dynamic process, having regional character and connected with recent tectonic activity.},
note = {6},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The Upper Silesian Coal Basin (USCB) is a region where high seismic activity is observed. Most of these seismic events have a local magnitude not exceeding 2.3. Their location and type of focal mechanism suggest that they are connected with new discontinuities in the rock mass caused by mining activity. Shocks with higher magnitude are also observed but their frequency is much lower. The strong events have a different focal mechanism than the low energetic events. The spatial distribution of shock epicentres is not uniform in the USCB area and shows the fractal character of seismic phenomena. Despite extensive mining activity throughout the area, the epicentres of strong events are concentrated in four regions belonging to different geological units. The temporal variability of epicentre co-ordinates and the general decrease of seismic activity points to the migration of seismicity across the investigated area. Analysing the spatial and temporal distributions of the strongest shocks, one can suppose this area to be critically self-organised. These facts suggest that induced seismicity in the USCB is triggered by a nonlinear dynamic process, having regional character and connected with recent tectonic activity.
1998
Lasocki, S.; Idziak, A. F.
Dominant directions of epicenter distribution of regional mining-induced seismicity series in Upper Silesian Coal Basin in Poland Journal Article
In: Pure and Applied Geophysics, vol. 153, no. 1, pp. 21-40, 1998, ISSN: 00334553, (15).
@article{2-s2.0-0032433088,
title = {Dominant directions of epicenter distribution of regional mining-induced seismicity series in Upper Silesian Coal Basin in Poland},
author = { S. Lasocki and A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032433088&doi=10.1007%2fs000240050183&partnerID=40&md5=a33f1d764f7c8486d8cb9999fe7ee668},
doi = {10.1007/s000240050183},
issn = {00334553},
year = {1998},
date = {1998-01-01},
journal = {Pure and Applied Geophysics},
volume = {153},
number = {1},
pages = {21-40},
publisher = {Birkhauser Verlag AG},
abstract = {The regional mining-induced seismicity of the Upper Silesian Coal Basin, Poland forms two major and two minor spatial clusters. The directional patterns of seismic series from the major clusters were studied with the use of the analysis of deflections. The seismic series is parameterized by the deflection angle of the straight line connecting epicenters of every two consecutive events, measured from NS direction. The trends of epicenter migration are characterized by modes of distribution of the deflection angle, estimated by the nonparametric kernel method. The distribution of deflection angles for the studied seismic series is not random. Altogether four trends of epicenter migration have been identified: two are connected with the subseries of events that belong to the same cluster and are related to the shape of the clusters, whereas the other two, linked to the subseries of events that alternate between the clusters, indicate that mutual positions of events in such series are not random. The results support recent hypotheses pertaining to low tectonic instability of this region. © Birkhäuser Verlag, 1998.},
note = {15},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The regional mining-induced seismicity of the Upper Silesian Coal Basin, Poland forms two major and two minor spatial clusters. The directional patterns of seismic series from the major clusters were studied with the use of the analysis of deflections. The seismic series is parameterized by the deflection angle of the straight line connecting epicenters of every two consecutive events, measured from NS direction. The trends of epicenter migration are characterized by modes of distribution of the deflection angle, estimated by the nonparametric kernel method. The distribution of deflection angles for the studied seismic series is not random. Altogether four trends of epicenter migration have been identified: two are connected with the subseries of events that belong to the same cluster and are related to the shape of the clusters, whereas the other two, linked to the subseries of events that alternate between the clusters, indicate that mutual positions of events in such series are not random. The results support recent hypotheses pertaining to low tectonic instability of this region. © Birkhäuser Verlag, 1998.
1997
Zuberek, W. M.; Teper, L.; Idziak, A. F.; Sagan, G.
Seismicity and tectonics in the Upper Silesian Coal Basin, Poland Journal Article
In: Prace - Panstwowego Instytutu Geologicznego, no. 157 PART 2, pp. 205-207, 1997, ISSN: 08669465, (4).
@article{2-s2.0-27844467244,
title = {Seismicity and tectonics in the Upper Silesian Coal Basin, Poland},
author = { W.M. Zuberek and L. Teper and A.F. Idziak and G. Sagan},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-27844467244&partnerID=40&md5=fe41c6f656dab62efc3fd4407a0551e7},
issn = {08669465},
year = {1997},
date = {1997-01-01},
journal = {Prace - Panstwowego Instytutu Geologicznego},
number = {157 PART 2},
pages = {205-207},
abstract = {[No abstract available]},
note = {4},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
[No abstract available]
1996
Idziak, A. F.; Teper, L.
Fractal dimension of faults network in the upper Silesian Coal Basin (Poland): Preliminary studies Journal Article
In: Pure and Applied Geophysics, vol. 147, no. 2, pp. 239-247, 1996, ISSN: 00334553, (25).
@article{2-s2.0-0030455108,
title = {Fractal dimension of faults network in the upper Silesian Coal Basin (Poland): Preliminary studies},
author = { A.F. Idziak and L. Teper},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0030455108&doi=10.1007%2fbf00877480&partnerID=40&md5=0c49154bc79b78d153fbd36e8641b0d3},
doi = {10.1007/bf00877480},
issn = {00334553},
year = {1996},
date = {1996-01-01},
journal = {Pure and Applied Geophysics},
volume = {147},
number = {2},
pages = {239-247},
publisher = {Birkhauser Verlag AG},
abstract = {Fractal analysis of faults network, tremor foci spatial distribution as well as the Gutenberg-Richter relationship could further explain whether the biggest seismic events are connected with recent tectonic activity. Fractality of fault systems geometry, as a first step of the analysis, was tested for a part of the USCB embodying the main structural units. The cluster analysis and the box counting methods were employed. The calculated fractal dimension of fault network was 1.98 for the whole area yet for considered structural units it was close to 1.6. The results point to similarity of studied fault pattern to river network. Faults within selected tectonic units make separate sets which have a distinct geometry and origin. The value of 1.6 is an upper limit to the fracture geometry of rocks that can be explained on the basis of Griffith energy balance concept.},
note = {25},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fractal analysis of faults network, tremor foci spatial distribution as well as the Gutenberg-Richter relationship could further explain whether the biggest seismic events are connected with recent tectonic activity. Fractality of fault systems geometry, as a first step of the analysis, was tested for a part of the USCB embodying the main structural units. The cluster analysis and the box counting methods were employed. The calculated fractal dimension of fault network was 1.98 for the whole area yet for considered structural units it was close to 1.6. The results point to similarity of studied fault pattern to river network. Faults within selected tectonic units make separate sets which have a distinct geometry and origin. The value of 1.6 is an upper limit to the fracture geometry of rocks that can be explained on the basis of Griffith energy balance concept.
1992
Idziak, A. F.
In: Publications - Institute of Geophysics, Polish Academy of Sciences, Series M, no. M-16(245), pp. 81-90, 1992.
@article{2-s2.0-0027086208,
title = {The use of crack tensor for seismic anisotropy problems in fractured rock masses [Tensor spekan i jego zastosowanie w zagadnieniach anizotropii sejsmicznej masywow spekanych]},
author = { A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0027086208&partnerID=40&md5=5ea7a0258d8d6b1fc0fb618d20408382},
year = {1992},
date = {1992-01-01},
journal = {Publications - Institute of Geophysics, Polish Academy of Sciences, Series M},
number = {M-16(245)},
pages = {81-90},
abstract = {The use of tensor methods for the description of crack geometry and orientation is discussed. The second rank crack tensor as well as the higher rank tensors are defined and their properties are described. Particular attention is paid to the features of the crack tensor in transversely isotropic media. The methods of approximation of the crack tensors from direct field measurements are shown. An example of the application of the crack tensor for determining the elasticity properties of fractured rocks is given. -English summary},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The use of tensor methods for the description of crack geometry and orientation is discussed. The second rank crack tensor as well as the higher rank tensors are defined and their properties are described. Particular attention is paid to the features of the crack tensor in transversely isotropic media. The methods of approximation of the crack tensors from direct field measurements are shown. An example of the application of the crack tensor for determining the elasticity properties of fractured rocks is given. -English summary
1991
Idziak, A. F.; Teper, L.; Cabała, J.
Shallow seismic method as a tool for resolving tectonic problems: the northeast border of the Upper Silesian Coal Basin Journal Article
In: Acta Geophysica Polonica, vol. 39, no. 3, pp. 293-309, 1991, ISSN: 00015725, (1).
@article{2-s2.0-0026364065,
title = {Shallow seismic method as a tool for resolving tectonic problems: the northeast border of the Upper Silesian Coal Basin},
author = { A.F. Idziak and L. Teper and J. Cabała},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0026364065&partnerID=40&md5=379c9ae86c1f65a8ae8eef77d6750b70},
issn = {00015725},
year = {1991},
date = {1991-01-01},
journal = {Acta Geophysica Polonica},
volume = {39},
number = {3},
pages = {293-309},
abstract = {Presents the results of seismic measurements and tectonic analysis of the Devonian and Triassic massive in the northeast border of the Upper Silesian Coal Basin, between Siewierz and Zawiercie towns. Seismic investigations were carried out in the outcrops of carbonate rocks. The strong seismic anisotropy was found in these rocks. Simultaneously tectonic structure, and fault and joint orientations were resolved from geological data. The obtained results show a close correlation between the seismic wave velocity anisotropy and the tectonic pattern in the studied area. -Authors},
note = {1},
keywords = {},
pubstate = {published},
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}
Presents the results of seismic measurements and tectonic analysis of the Devonian and Triassic massive in the northeast border of the Upper Silesian Coal Basin, between Siewierz and Zawiercie towns. Seismic investigations were carried out in the outcrops of carbonate rocks. The strong seismic anisotropy was found in these rocks. Simultaneously tectonic structure, and fault and joint orientations were resolved from geological data. The obtained results show a close correlation between the seismic wave velocity anisotropy and the tectonic pattern in the studied area. -Authors
1988
Idziak, A. F.
Seismic wave velocities in fractured sedimentary carbonate rocks Journal Article
In: Acta Geophysica Polonica, vol. 36, no. 2, pp. 101-114, 1988, ISSN: 00015725, (9).
@article{2-s2.0-0024248810,
title = {Seismic wave velocities in fractured sedimentary carbonate rocks},
author = { A.F. Idziak},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024248810&partnerID=40&md5=b35e87e8bf3687fab5a19051603ac5c3},
issn = {00015725},
year = {1988},
date = {1988-01-01},
journal = {Acta Geophysica Polonica},
volume = {36},
number = {2},
pages = {101-114},
abstract = {Devonian dolomites and Triassic limestones from the north and northeast border of the Uppersilesian Coal Basin were chosen to study the effect of fractures on seismic wave velocities in sedimentary rocks. The measurements of linear fracture density have been made in outcrops. Both the compressional and shear wave velocities have been measured apart of outcrop edges using shallow refraction method. A strong correlation between the fracture density and wave velocities have been obtained, and the regression curves for these parameters have been established. -from Author},
note = {9},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Devonian dolomites and Triassic limestones from the north and northeast border of the Uppersilesian Coal Basin were chosen to study the effect of fractures on seismic wave velocities in sedimentary rocks. The measurements of linear fracture density have been made in outcrops. Both the compressional and shear wave velocities have been measured apart of outcrop edges using shallow refraction method. A strong correlation between the fracture density and wave velocities have been obtained, and the regression curves for these parameters have been established. -from Author