@article{2-s2.0-85180369062,

title = {Weathering alterations of coal mining wastes geochemistry, petrography, and mineralogy, a case study from the Janina and Marcel Coal Mines, Upper Silesian Coal Basin (Poland)},

author = { M.J. Fabiańska and J. Ciesielczuk and M. Szczerba and M. Misz-Kennan and D. Więcław and E. Szram and Á. Nádudvari and Z. Ciesielska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85180369062&doi=10.1016%2fj.coal.2023.104407&partnerID=40&md5=7f614415c47e1227af2cb9b820a07022},

doi = {10.1016/j.coal.2023.104407},

year  = {2024},

date = {2024-01-01},

journal = {International Journal of Coal Geology},

volume = {281},

publisher = {Elsevier B.V.},

abstract = {Weathering-caused alterations in coal mining waste geochemistry, petrography, and mineralogy occurring in the known time span of 1998–2018 in the temperate climate of Poland were investigated. A series of coal mining waste rocks representing two parts of the Upper Silesian Coal Basin (USCB), differing in coalification stage, i.e., corresponding to sub-bituminous and bituminous coals, have been selected to find how the level of organic matter conditionates the weathering. Differences in organic matter content, petrographic composition, rock mineralogy and inorganic geochemistry were also taken into account. Whereas organic petrography, including vitrinite reflectance values, do not show significant weathering signs, apart from irregular cracks and, in very rare cases, paler in color oxidation rims, organic geochemistry has been affected due to low-temperature secondary processes, including increased oxygen index values, particularly in less mature coal mining wastes. Biomarker distribution has been changed to the largest extent, with partial removal of n-alkanes possibly due to biodegradation of organic matter and water-washing of lighter polycyclic aromatic hydrocarbons, including alkyl naphthalenes. Organic matter of lower maturity in coal mining wastes from the USCB eastern part, as more reactive, showed a higher level of secondary transformations. Minerals formed during weathering due to time and storage on dumps were mainly oxidation products of iron sulphides: goethite and jarosite; however, most of the minerals have not been altered. Thus, despite physical changes in coal mining wastes, such as increased brittleness, decreasing fragment size and surface color change, there are only limited changes in inorganic chemistry and mineralogy. This indicates that low-temperature processes do not favour the inorganic elements release to the environment and points out that measures to prevent self-heating within the dumps are the most vital part of post-mining activity leading to the best scenario - slow low-temperature weathering of coal mining wastes. © 2023 Elsevier B.V.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85182728897,

title = {Phyllite/bentonite mixture-an alternative effective buffer material for a geological disposal of radioactive waste},

author = { J. Kyzioł-Komosińska and J. Janeczek and A. Dzieniszewska and M.J. Fabiańska and A. Matuszewska and E. Teper and E. Szram and T. Krzykawski and M. Pająk and J. Czupioł},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85182728897&doi=10.1007%2fs11356-023-31102-6&partnerID=40&md5=170ca50532c1099a2d251dd0307aca0c},

doi = {10.1007/s11356-023-31102-6},

year  = {2024},

date = {2024-01-01},

journal = {Environmental science and pollution research international},

volume = {31},

number = {2},

pages = {2419-2436},

abstract = {The use of phyllite (Phy) instead of quartz in mixtures with bentonite (B) is recommended as a buffer material for engineering barriers in a geological repository of nuclear waste. The recommendation is based on experimentally determined sorption properties of various Phy/B mixtures. The adsorption capacity of Phy/B mixtures (Phy/B: 75/25; 50/50; and 25/75), the removal efficacy of Eu(III) ions (an analog for fissiongenic lanthanides and actinides), and the rate of their binding reaction were studied using the batch adsorption equilibrium and kinetic experiments at different Eu(III) initial concentrations, solution pH, and solution to adsorbent (L/S) ratio. The adsorption capacity of the Phy/B mixtures increased with the increased bentonite content in the mixture depending on the L/S ratio and solution pH. The highest increase in the adsorption capacity of the Phy/B mixtures compared to phyllite was observed for the Phy/B proportions of 25/75 and 50/50. The rate of the Eu(III) adsorption was the best fitted by the pseudo-second-order kinetic model indicating that the adsorption rate was controlled by chemisorption. The Sips model provided the best correlation of the adsorption experimental data, indicative of more than one adsorption site. The results of this study show the advantage of the Phy/B mixtures in immobilizing Eu and certain fission products by combining adsorption properties of the materials. © 2023. The Author(s).},

note = {0},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85146253145,

title = {Organic matter variations in the deep marginal basin of the Western Tethys and links to various environments in isotopic Albian–Cenomanian Boundary Interval},

author = { K. Bąk and E. Szram and M. Zielińska and M. Misz-Kennan and M.J. Fabiańska and M. Bąk and Z. Górny},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85146253145&doi=10.1016%2fj.coal.2022.104181&partnerID=40&md5=62656959bb3d149bb887ffc8e5308928},

doi = {10.1016/j.coal.2022.104181},

issn = {01665162},

year  = {2023},

date = {2023-01-01},

journal = {International Journal of Coal Geology},

volume = {266},

publisher = {Elsevier B.V.},

abstract = {In the latest Albian–lowermost Cenomanian, the palaeoenvironments along the northern margin in the Carpathian domain of the Western Tethys were characterized by deep basins with floors below the calcium compensation depth, which were filled with flysch and hemipelagic sediments. On the other hand, the terrestrial areas surrounding the Western Tethys to the north were covered by a diverse flora of gymnosperms and experienced an increase in the diversity of angiosperms; the latter was characterized by a rapid spread in most terrestrial environments. The flysch/hemipelagic succession of the Silesian Basin (the Polish part of the Outer Carpathians) contains a sedimentological record of organic-rich accumulation that is related to the carbon isotope excursion, known as the Albian–Cenomanian Boundary Interval (ACBI); its older part corresponds to Oceanic Anoxic Event 1d (OAE1d). Organic matter (OM) records from these noncalcareous sediments are characterized by the occurrence of both terrigenous and marine organic compounds, and an increase in their accumulation intensity occurred during OAE1d, similar to other Western Tethyan areas and their northern surroundings. Quantitative analyses of the OM compounds using petrographic and chemical methods indicate that the majority were redeposited from land and estuarine environments; however, the OAE1d strata (Alternans Level) and the lower part of the post-OAE1d black shale succession are also enriched in OM of marine origin. This enrichment is interpreted as the result of enhanced surface water productivity, most likely related to redistribution of nutrients from coastal areas during the sea level rise of the KAl8 eustatic cycle. OAE1d was also the period in which the degradation of OM took place under reducing conditions in the bottom waters (although they were not anoxic), which was possibly caused by poor ventilation. A high proportion of terrigenous/estuarine OM compounds redeposited in the Silesian Basin is characteristic, especially for the post-ACBI black and dark grey shales. A large amount of this OM type has undergone relatively rapid degradation as it has settled from the shallows through a well‑oxygenated water column in the epi-, meso- and bathypelagic zones. Some terrigenous OM came from forest fires that occurred in the catchment area and supplied material to the Silesian Basin. © 2022 Elsevier B.V.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85105377903,

title = {Selected ions and major and trace elements as contaminants in coal-waste dump water from the Lower and Upper Silesian Coal Basins (Poland)},

author = { L. Lewińska-Preis and E. Szram and M.J. Fabiańska and Á. Nádudvari and M. Misz-Kennan and A.K. Abramowicz and Ł. Kruszewski and A. Kita},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105377903&doi=10.1007%2fs40789-021-00421-9&partnerID=40&md5=4b9123027922bf299128dda7f296b4dd},

doi = {10.1007/s40789-021-00421-9},

issn = {20958293},

year  = {2021},

date = {2021-01-01},

journal = {International Journal of Coal Science and Technology},

volume = {8},

number = {4},

pages = {790-814},

publisher = {Springer International Publishing},

abstract = {Many temporary and permanent reservoirs of water occur on or near coal-waste dumps in the Lower- and Upper Silesian Coal Basins (Poland). Little or nothing is known of the degree to which their water chemistry might reflect (i) reservoir type, i.e., whether permanent or temporary, (ii) level of coal-waste thermal activity, i.e., whether inactive or self-heating or burnt-out or (iii) region, i.e., whether the dumps are in Upper- or Lower Silesia. To provide some answers, concentrations of selected ions (NH4+; HCO3−; F−; Cl−; Br−; NO2−; NO3−; PO43−;SO42−) were determined by ion chromatography and of nineteen elements (Al; B; Ba; Ca; Cd; Cr; Cu; Fe; K; Li; Mg; Mn; Na; P; Pb; S; Si; Sr; Zn) by inductively coupled plasma mass spectrometry (ICP-MS). The data allow a number of the following observations. When permanent reservoirs are considered, there is a clear relationship between concentrations of ions and major and trace elements and dump thermal activity. The highest concentrations occur where the thermal activity is high as inorganic components are transformed into more water-soluble forms. As dump thermal activity shows a regional pattern, it follows also that elemental and ion concentrations in the dump waters show significant regional differences. In temporary reservoirs, concentrations of ions and major and trace elements are much lower and any correlations between components less significant than in the permanent reservoirs; these reservoirs exist for too short a time for any balance between coal waste- and water components to be established. © 2021, The Author(s).},

note = {7},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85090054667,

title = {Organic contaminants of coal-waste dump water in the Lower- and Upper Silesian Coal Basins (Poland)},

author = { M.J. Fabiańska and Á. Nádudvari and J. Ciesielczuk and E. Szram and M. Misz-Kennan and D. Więcław},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85090054667&doi=10.1016%2fj.apgeochem.2020.104690&partnerID=40&md5=48996f1ecc723173fab6270181a20d34},

doi = {10.1016/j.apgeochem.2020.104690},

issn = {08832927},

year  = {2020},

date = {2020-01-01},

journal = {Applied Geochemistry},

volume = {122},

publisher = {Elsevier Ltd},

abstract = {Organic phases in the waters of permanent- and temporary reservoirs located on and near coal-waste dumps in Upper- and Lower Silesia, Poland, include recent compounds of biogenic origin, geochemical compounds (biomarkers), dissolved products of coal-waste self-heating, and anthropogenic markers. Due to their adverse environmental- and health effects, the concentration levels of two compound groups were assessed, namely, polycyclic aromatic hydrocarbons (PAHs) and organic phosphates (OPEs). Their occurrence depends on whether sampling sites were thermally active or not. The predominant source of organic compounds in coal-waste dump water at thermally active sites is organic matter from coal waste. Products of self-heating dissolved in water include phenolic compounds, light ketones, organic acids, and PAHs showing the highest concentrations. OPEs are present only at thermally active sites where firefighting operations had taken place recently. These most probably derived from pump lubricants and/or the diesel engines of heavy-duty equipment such as excavators and bulldozers as no fire retardants were used. Biomarker- and PAHs ratios indicative of air particulate contamination prevail at sites where any thermal activity had ceased long ago. Traffic emission from nearby settlements seems to be the main source of organic compounds at such sites as the biomarkers indicate a crude-oil related source. © 2020 Elsevier Ltd},

note = {4},

keywords = {},

pubstate = {published},

tppubtype = {article}

}