@article{2-s2.0-85189797583,

title = {The evolution of Archean crust undisturbed for three billion years: A case study from the Bahalda Pluton, Singhbhum Craton, eastern India},

author = { A. Gumsley and E. Słaby and S. Dey and D. Chew and W. Gmochowska and A. Wudarska and A.P. Gumsley and K. Szopa and T. Krzykawski and B. Marciniak-Maliszewska and F. Drakou},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85189797583&doi=10.1016%2fj.precamres.2024.107385&partnerID=40&md5=687787a56ef1d505f72773d12d7906f0},

doi = {10.1016/j.precamres.2024.107385},

issn = {03019268},

year  = {2024},

date = {2024-01-01},

journal = {Precambrian Research},

volume = {406},

publisher = {Elsevier B.V.},

abstract = {The Archean Bahalda Pluton (Singhbhum Craton; eastern India) is an I-type mafic granodiorite, surrounded by Paleoarchean TTG and TTG-derived granites of the Singhbhum Suite. The Singhbhum Suite is highly unusual amongst Eo- and Paleo-Archean terranes because most of the Singhbhum Craton escaped post-Archean deformation and metamorphism. The Bahalda granodiorite contains accessory zircon, titanite, and fluorapatite, which are rarely studied together but are a powerful tool for exploring magmatic and post-magmatic processes. U-Pb zircon and titanite dating indicate a ca. 3.35 Ga emplacement age of the Bahalda granodiorite. Subsequent ca. 3.27–3.05 Ga U-Pb fluorapatite ages are interpreted as recording low-grade metamorphic or hydrothermal event(s). The Bahalda fluorapatite and titanite are LREE-enriched compared to the HREE. The complex zonation of fluorapatite suggests that primary igneous fluorapatite was recrystallised with the removal of REE and overgrown by REE-depleted rims. This is in agreement with the apatite trace element systematics which imply fluorapatite cores are of mafic I-type granitoid affinity, with rims of low- and medium-grade metamorphic / metasomatic affinity. No textural evidence of titanite alteration was detected, but some domains have minor REE depletion compared to crystal interiors. The titanite and fluorapatite data display similar trends in LREE vs Sr/Y space due to metamorphic/hydrothermal alteration. The evolution of the Bahalda Pluton, which did not exceed greenschist facies for 3 Gyr, invites comparison with other stabilized cratons from the Mesoarchean. © 2024},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85175625523,

title = {Chemical and mineral composition of bottom ash from agri-food biomass produced under low combustion conditions},

author = { J. Adamczyk and D. Smołka-Danielowska and A. Krzątała and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85175625523&doi=10.1007%2fs13762-023-05255-3&partnerID=40&md5=7935cc8b002bd7003c649d73087527c5},

doi = {10.1007/s13762-023-05255-3},

issn = {17351472},

year  = {2024},

date = {2024-01-01},

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

volume = {21},

number = {4},

pages = {4025-4036},

publisher = {Institute for Ionics},

abstract = {The study aimed at conducting a detailed analysis of apple pomace (AP), walnut shells (WS), and sunflower husks (SH) ashes as potential raw materials for combustion at a temperature of 400 ± 15 °C (individual home furnace). Research methods such as ICP-OES/MS (atomic emission spectrometry with excitation in induced plasma and mass spectrometry), XRD (X-ray diffraction), and SEM–EDS (scanning electron microscopy with quantitative X-ray microanalysis) were utilized. Elemental CHNSO FlashSmart series analyser (Thermo Scientific) was employed for the analysis of oxygen (O). An automatic IR analyser was used to determine the carbon (C), total sulphur (S), and hydrogen (H) content. Total sulphur (S) and chlorine (Cl) were measured by the PN-EN ISO 16994:2016 standard. The nitrogen (N) content was determined by the catharometric method of chlorine by ion chromatography (IC). Higher concentrations of potentially toxic elements (PTE) such as As, Cr, Zn, Cd, Cu, Ni, Pb, Tl, U, and Th were detected in apple pomace ashes. The mineral composition of biomass ashes was found to be highly diverse, with sunflower husk ashes containing the highest amount of minerals, including quartz, dolomite, calcite, magnesite, sylvite, arcanite, fairchildite, and archerite. Quartz was identified in apple pomace ash, while in sunflower husk ash, it was determined to be present only as an amorphous substance. The estimated total dust emission to the atmosphere from biomass combustion was found to be at a similar value (1.23 to 1.35 kg/Mg). © 2023, The Author(s).},

note = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85178139519,

title = {Organic minerals in a self-heating coal-waste dump in Upper Silesia, Poland: Structure, formation pathways and environmental issues},

author = { Á. Nádudvari and T. Krzykawski and M. Jabłońska and M.J. Fabiańska and K. Skrzyńska and A.K. Abramowicz and M. Książek and J. Ciesielczuk},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85178139519&doi=10.1016%2fj.coal.2023.104403&partnerID=40&md5=94234ee56c791a04257a02baf301f8af},

doi = {10.1016/j.coal.2023.104403},

issn = {01665162},

year  = {2024},

date = {2024-01-01},

journal = {International Journal of Coal Geology},

volume = {281},

publisher = {Elsevier B.V.},

abstract = {The study presents research on the unusual appearance of purple-colored organic minerals, ravatite (phenanthrene) and freitalite (anthracene), occurring in the migrating front wall of a heating spot in the Bytom coal waste dump (Upper Silesia Coal Basin; Poland). These minerals are known to be sublimation products, but their formation mechanism remains unclear. Additional minor components are fluorene, dibenzothiophene, naphthothiophenes, dibenzofuran, and their alkyl-derivatives, and n-C17 – n-C20 alkanes. Temperatures were surprisingly low (30–60 °C on the surface) at the sampling sites, though such large amounts of Polycyclic Aromatic Hydrocarbons (PAHs) typically form in a burning environment where temperatures reach 800–1000 °C. The relatively low temperatures suggest that the primary mechanism of formation was not direct evaporation (desublimation) of phenanthrene and anthracene from coal-waste gases but that their occurrence may reflect a catalytical polymerization of ethylene on iron (III) chloride synthesized in a reaction between HCl and a common Fe mineral such as goethite. Subsequently, both minerals crystallized on the cold dump surface. High concentrations of phenanthrene and anthracene in self-heating products, testified by ravatite and freitalite, mean that self-heating of coal waste may significantly increase backgrounds of environmental pollution by PAHs. © 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},

issn = {16147499},

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).},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85160796827,

title = {Neoproterozoic ophiolite exotic blocks in the Outer Western Carpathians, southern Poland: a record of the fast ocean-floor cooling and alterations},

author = { A. Gawęda and K. Szopa and A. Waœkowska and J. Golonka and T. Krzykawski and T. Kalinichenko},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160796827&doi=10.7306%2fgq.1679&partnerID=40&md5=0c6a20626ee128e641c73ad8d8765f15},

doi = {10.7306/gq.1679},

issn = {16417291},

year  = {2023},

date = {2023-01-01},

urldate = {2023-01-01},

journal = {Geological Quarterly},

volume = {67},

number = {1},

publisher = {Polish Geological Institute},

abstract = {Ophiolitic blocks, represented by metagabbro and serpentinite containing relict pyroxene, olivine, baddeleyite, zirconolite, Ni-pyrite and pyrrhotite, were found as exotic blocks in an olistostrome in the Magura Nappe, Outer Western Carpathians. The geochemical and isotopic features of the blocks suggest they represent mantle-derived rocks, with within-plate geochemistry signatures, modified by subduction, with lithospheric mantle input. A U-Pb apatite cooling age (614 ±3 Ma) is within age uncertainty of a published U-Pb zircon magmatic crystallization age (~614 Ma) implying rapid post-crystallization cooling. Pervasive alteration with replacement of primary minerals by low-temperature assemblages is observed in all rock fragments and is interpreted as contemporaneous with shearing. The secondary mineral assemblages and temperature modelling allow the interpretation that the pervasive ocean-floor metamorphism is the alteration in these meta-mafic rocks. These ophiolitic fragments can be linked to the Neoproterozoic break up of Rodinia/Pannotia. © 2023, Polish Geological Institute. All rights reserved.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85178322346,

title = {57Fe Mössbauer Spectroscopy and X-ray Diffraction of Annealed Highly Metamict Perrierite: Activation Energy and Recrystallization Processes},

author = { D. Malczewski and A. Grabias and M. Dziurowicz and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85178322346&doi=10.3390%2fmin13111395&partnerID=40&md5=64240a6ebfc4e1e6d17bbb64667763b0},

doi = {10.3390/min13111395},

issn = {2075163X},

year  = {2023},

date = {2023-01-01},

journal = {Minerals},

volume = {13},

number = {11},

publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},

abstract = {This paper presents the results of 57Fe Mössbauer spectroscopy and X-ray diffraction analysis of highly metamict perrierite (REE;Ca;Th)4(Fe2+;Mg)2(Ti;Fe3+)3Si4O22 after annealing in argon from 673 to 1273 K for one hour. Radioactive elements in metamict minerals damage crystal structure on geologic time scales primarily due to recoil nuclei from α-decay of 238U, 232Th, 235U, and their daughter products. Metamict minerals are widely used in geochronology and can serve as natural analogs for the study of radiation effects in high-level nuclear waste. Analyses were performed on fragments of a perrierite sample collected from granitoids near Amherst, Virginia (USA). Electron microprobe and gamma-ray spectrometry recorded Fe concentrations of 4.7 wt.% and Th and U concentrations of 0.64 and 0.06 wt.%, respectively. The calculated total absorbed α-dose was 7.8 × 1015 α-decay mg−1. The Mössbauer spectrum of the untreated sample can be fitted to two Fe2+ and two Fe3+ doublets in octahedral coordination with a relative ΣFe2+/ΣFe of 0.63. For samples annealed at 1173 K and 1273 K, spectra show a decrease in the total contribution of Fe2+ to 0.58 due to dehydroxylation associated with the simultaneous oxidation of post-metamict Fe2+ to Fe3+. In the examined perrierite, Fe2+ occurs in structural positions B and C(1). The broad, predominant Fe3+ doublet observed in the spectrum of the unannealed sample splits into two components at 973 K interpreted to represented positions C(1) and C(2) in the perrierite structure. The Mössbauer spectra show a prominent decrease in the width of the high-energy absorption peak representing Fe2+ components with increasing temperature. The variation in the width of this peak versus the annealing temperature seems to be an indicator of thermally induced recrystallization. Based on the exponential dependence of the derivative function of the parameter with the inverse temperature and using an Arrhenius plot, an activation energy (EA) of 0.73 eV was determined for thermally-induced recrystallization. Corresponding XRD data show progressive recrystallization with increasing annealing temperature. The XRD pattern of the fragment annealed at 1273 K indicates that highly metamict perrierite recrystallized to the pre-metamict state that can be indexed to the C2/m space group. © 2023 by the authors.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85165920613,

title = {The first record of fossilized soft parts in ossified tendons and implications for the understanding of tendon mineralization},

author = { D. Surmik and J. Słowiak and T. Szczygielski and M. Wojtyniak and D. Środek and M. Dulski and K. Balin and T. Krzykawski and R. Pawlicki},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85165920613&doi=10.1093%2fzoolinnean%2fzlad001&partnerID=40&md5=4c921660ed7448c615950e932ab929a9},

doi = {10.1093/zoolinnean/zlad001},

issn = {00244082},

year  = {2023},

date = {2023-01-01},

journal = {Zoological Journal of the Linnean Society},

volume = {198},

number = {3},

pages = {747-766},

publisher = {Oxford University Press},

abstract = {Preservation of soft parts (collagen fibres; blood vessels and cells) in extinct vertebrates is rare and usually limited to fossilized bone and cartilage. Well-preserved coarse collagenous fibre bundles embedded in a mineralized matrix of tendons, as well as numerous hollow, tubular structures consistent morphologically with fibril bundles, blood vessels and associated cells, were identified in ossified tendons of Late Cretaceous ornithischians from North America and Central East Asia. Detailed, high-accuracy imaging, along with spectroscopic characterization of those fibrous structures and comparison with ossified tendons of modern-day turkeys, support the proposition that physiologically driven tendon ossification is common for avians and non-avian dinosaurs. The examined soft parts were preserved through the pathway of iron-induced crosslinking and alumino-silification, documenting a variety of pathways for the preservation of soft parts, depending on the burial environment. For the first time, the structure of dinosaur fossilized tendons is analysed in detail, revealing shared histogenetic principles with modern birds and the nature of preservation. © 2023 The Linnean Society of London.},

note = {1},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85152414271,

title = {Native Bacteria Isolated from Phosphate Deposits Reveal Efficient Metal Biosorption and Adhesion to Ore Particles},

author = { H. Rabia and M. Ould Hamou and K. Kasperkiewicz and T. Krzykawski and M. Malicka and I.W. Potocka and I. Bodnaruk and A. Merchichi and M. Skowronek and M. Augustyniak},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85152414271&doi=10.3390%2fmin13030388&partnerID=40&md5=1bfaf6d1a995b0e8847e053403d2f345},

doi = {10.3390/min13030388},

issn = {2075163X},

year  = {2023},

date = {2023-01-01},

journal = {Minerals},

volume = {13},

number = {3},

publisher = {MDPI},

abstract = {Mining and processing phosphate ore are among the essential branches of the economy in some developing countries, including Algeria. Conventional ore beneficiation methods can harm the environment by consuming tremendous amounts of water resources (during washing and flotation), potentially hazardous chemicals, and thermal energy. Mine water contains toxic metals that, when released, interfere with environmental functioning. Therefore, in line with environmental needs, conventional methods should be gradually replaced with safe biotechnological processes. This study aimed to investigate the biosorption and adhesion abilities of native microorganisms isolated from Djebel Onk ore (Algeria). The examined bacterial strains differed in their metal accumulation efficiency. The incubation of phosphate ore with the native strain Bacillus HK4 significantly increased the recovery of Mg and Cd (at pH 7; 8147.00 and 100.89 µg/g−1; respectively). The HK4 strain also revealed better adhesion to the ore particles than the reference strain of Bacillus subtilis. Thus, biosorption could be more effective when using the native HK4 strain, which can remove Cd and/or Mg over a pH 4–10 range. Moreover, concerning the unique adhesion capacity of HK4, the strain can be considered in the design of bioflotation methods, as well as in the development of an eco-friendly method of ore and post-flotation waste beneficiation. © 2023 by the authors.},

note = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85147541252,

title = {Preservation of labile organic compounds in sapropelic coals from the Upper Silesian Coal Basin, Poland},

author = { Á. Nádudvari and M. Misz-Kennan and M.J. Fabiańska and J. Ciesielczuk and T. Krzykawski and B.R.T. Simoneit and L. Marynowski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85147541252&doi=10.1016%2fj.coal.2023.104186&partnerID=40&md5=396c170a48381df292c872f303db8608},

doi = {10.1016/j.coal.2023.104186},

issn = {01665162},

year  = {2023},

date = {2023-01-01},

journal = {International Journal of Coal Geology},

volume = {267},

publisher = {Elsevier B.V.},

abstract = {Sapropelic coals were taken for study from coal mines and coal waste dumps in Upper Silesian Coal Basin (USCB), Poland. They showed unusual molecular compositions reflecting immature characteristics. The vitrinite reflectances 0.65-1.00% indicated mature organic matter (OM) and agreed with the Rock Eval Tmax (421-444oC). The OM maturity also was supported by the geochemical ratios, i.e., alkylnaphthalenes, dimethylphenanthrenes, methylbiphenyls and dibenzofuran or phenol and its methyl derivatives in the southern part of USCB. The petrographic features showed fine-grained and laminated OM, which is typical for sapropel with a dominance of vitrinite and inertinite macerals. The presence of fusinites and natural chars reflects paleowildfires prior to coal formation and/or peat fires. It is also confirmed by the presence of anthracene, methyl-anthracenes, and oxygen-containing aromatic compounds like anthrone, xanthone, fluorenone, and benzofluoren-11-ones. Rock Eval pyrolysis data showed very similar values as the humic coals from USCB, except for the elevated values of S2 (residual petroleum potential) and Hydrogen Index (HI) reflecting the presence of hydrogen-rich liptinite macerals. The distributions of n-alkanes, methylalkanes, alkylcyclohexanes and alkylbenzenes indicate a microbiological origin associated with microorganisms, including cyanobacteria or Botryococcus. In all samples 8β(H)-homodrimane dominated and indicated an anoxic environment of the deep lakes. The preservation of tetracyclic diterpenoids, diaster-13(17)-enes, ββ-hopanes, simonellite, bisnorsimonellite, cadalene, fatty acids, aromatic aldehydes and carboxylic acids from lignin degradation in sapropelic hard coals indicates an early diagenetic generation of these compounds from sapropels. Furthermore, during coalification, some the less thermally labile compounds can be preserved with increasing coal rank, while others isomerized or aromatized to more stable counterparts. © 2023 Elsevier B.V.},

note = {6},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85163143301,

title = {Rare earth elements, uranium, and thorium in ashes from biomass and hard coal combustion/co-combustion [Pierwiastki ziem rzadkich, uran i tor w popiołach ze spalania/współspalania biomasy i węgla kamiennego]},

author = { J. Adamczyk and D. Smołka-Danielowska and A. Krzątała and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163143301&doi=10.24425%2fgsm.2023.145882&partnerID=40&md5=9ec8283715362fc11248cd6f6d83ebdb},

doi = {10.24425/gsm.2023.145882},

issn = {08600953},

year  = {2023},

date = {2023-01-01},

journal = {Gospodarka Surowcami Mineralnymi / Mineral Resources Management},

volume = {39},

number = {2},

pages = {87-108},

publisher = {Polska Akademia Nauk},

abstract = {This study presents the results of concentrations of rare earth elements and yttrium (REY), uranium (U), and thorium (Th) in ashes from combustion/co-combustion of biomass (20%; 40%; and 60% share) from the agri-food industry (pomace from apples; walnut shells; and sunflower husks) and hard coal. The study primarily focuses on ashes from the co-combustion of biomass and hard coal, in terms of their potential use for the recovery of rare earth elements (REE), and the identification of the sources of these elements in the ashes. Research methods such as ICP-MS (inductively coupled plasma mass spectrometry), XRD (X-ray diffraction), and SEM-EDS (scanning electron microscopy with quantitative X-ray microanalysis) were used. The total average content of REY in ash from biomass combustion is 3.55–120.5 mg/kg, and in ash from co-combustion, it is from 187.3 to 73.5 mg/kg. The concentration of critical REE in biomass combustion ash is in the range 1.0–38.7 mg/kg, and in co-combustion ash it is 23.3–60.7 mg/kg. In hard-coal ash, the average concentration of REY and critical REY was determined at the level of 175 and 45.3 mg/kg, respectively. In all samples of the tested ashes, a higher concentration of Th (0.2–14.8 mg/kg) was found in comparison to U (0.1–6 mg/kg). In ashes from biomass and hard-coal combustion/co-combustion, the range of the prospective coefficient (Coutl) is 0.66–0.82 and 0.8–0.85, respectively, which may suggest a potential source for REE recovery. On the basis of SEM-EDS studies, yttrium was found in particles of ashes from biomass combustion, which is mainly bound to carbonates. The carriers of REY, U, and Th in ashes from bio-mass and hard-coal co-combustion are phosphates (monazite and xenotime), and probably the vitreous aluminosilicate substance. © 2023, Polska Akademia Nauk. All rights reserved.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85135313507,

title = {The transition toward the Messinian evaporites identified by biomarker records in the organic-rich shales of the Tripoli Formation (Sicily, Italy)},

author = { Á. Nádudvari and M. Forzese and R. Maniscalco and A. Di Stefano and M. Misz-Kennan and L. Marynowski and T. Krzykawski and B.R.T. Simoneit},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85135313507&doi=10.1016%2fj.coal.2022.104053&partnerID=40&md5=d95062882491fd96c91734503951577e},

doi = {10.1016/j.coal.2022.104053},

issn = {01665162},

year  = {2022},

date = {2022-01-01},

journal = {International Journal of Coal Geology},

volume = {260},

publisher = {Elsevier B.V.},

abstract = {Pre-evaporitic Messinian deposits, consisting of a cyclic alternation of diatomites with lime mudstones, and laminated marls, crop out all over the Mediterranean area, representing important archives of deteriorating environmental conditions. The peculiar section of Torrente Vaccarizzo (Sicily) shows several intervals of organic-rich shales, exceptionally high in lipid biomarkers, interbedded mostly with diatomites, laminites, and lime mudstones. This research deals with geochemical analyses of organic-rich shales to characterize the depositional environments and the organic matter source, as well as to investigate the biological archives predating the extreme saline conditions of the Messinian Salinity Crisis. The biomarker compositions with the petrographic results reflect a change from oxic/dysoxic to dysoxic/anoxic conditions towards younger strata. Although a minor terrestrial input is displayed by saccharides and angiosperm biomarkers, such as amyrins, dicarboxylic acids, and lignin degradation products, most of the n-alkanes, isoprenoids, n-alkanoic acids, steroids, hopanes, and tocopherols are produced by marine hypersaline tolerant organisms. Sulfurization of organic compounds (mainly isoprenoids and n-alkanols) complements the pyrite mineralogy also indicating anoxia. The assessment of kerogen by Rock Eval pyrolysis revealed a moderate-good oil potential and indicated thermally immature organic matter, which is also confirmed by multiple geochemical parameters (e.g. hopane; sterane). Bituminite at this stage of thermal maturity is not prone to hydrocarbon generation, but depends on the degree of bacterial alteration. This work highlights the relevance of using biomarkers to characterize the response of biological communities to deteriorating environmental conditions. © 2022 Elsevier B.V.},

note = {1},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85128199423,

title = {Chemical Diversity of Teeth and Bone Fragments from a Newly Discovered Upper Muschelkalk Bone Bed from Silesia, Poland},

author = { T. Krzykawski and K. Szopa and R. Niedźwiedzki and K. Setkiewicz and M.B. Czaja},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128199423&doi=10.3390%2fmin12040469&partnerID=40&md5=60b069250842a02a24637a720f288274},

doi = {10.3390/min12040469},

issn = {2075163X},

year  = {2022},

date = {2022-01-01},

journal = {Minerals},

volume = {12},

number = {4},

publisher = {MDPI},

abstract = {The new exposure of the Upper Muschelkalk clays and dolomites located south of Kalety (Tarnogórski District; Silesia; Poland) provided numerous remains of vertebrates represented by teeth, scales, long bones, and coprolites. Despite the influence of hydrothermal processes leading to dolomitization and Zn-Pb deposit formation, the preservation of fossil remains is good. The taxonomic diversity and accumulation of vertebrate debris in the dolomite are similar to other “bone beds” from the Muschelkalk and the Lower Keuper units. The SEM-EDS, EMP-WDS, and XRD analyses confirm that the examined remains consist of hydroxylapatite containing carbonate ions. Most vertebrate teeth as well as some bone fragments show zoning in the BSE imaging. In tooth cross-sections, three or two zones are preserved: (I) the outermost zone, associated with diagenetic mineralization of enameloid apatite, (II) a intermediate zone (orthodentine), and (III) the most porous internal zone (osteodentine). Decreasing P, Ca, Sr in the composition of the apatite which forms successive zones, is visible from the most external to the central part. Selective diagenetic substitution and adsorption of some elements by apatite crystals can allow recognition of the genetic origin of highly damaged or transported fragments scattered in the sedimentary layers. The chemical behavior of bioapatite, from deposition to digenesis, shows its useful role for identification of the formation process and potential, younger changes (e.g.; hydrothermal overprint). The X-ray diffraction data, particularly cell parameters “a” and “c”, can determine the degree of crystallinity and/or diagenesis. Moreover, correlation between some elements/ions (e.g.; Sr; Ba; Ca; Mg; F; OH) can be helpful for the identification of the fossil type, especially if the bones are small and incomplete. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85144207568,

title = {The Śnieżka peatland as a candidate for the Global Boundary Stratotype Section and Point for the Anthropocene series},

author = { B. Fiałkiewicz-Kozieł and E. Łokas and B. Smieja-Król and S.D. Turner and F. De Vleeschouwer and M. Woszczyk and K. Marcisz and M. Gałka and M. Lamentowicz and P. Kołaczek and I. Hajdas and M. Karpińska-Kołaczek and K. Kołtonik and T. Mróz and S.L. Roberts and N.L. Rose and T. Krzykawski and A. Boom and Ho. Yang},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144207568&doi=10.1177%2f20530196221136425&partnerID=40&md5=8c6871506dcc2a4d9fbbdf73a4d84f56},

doi = {10.1177/20530196221136425},

issn = {20530196},

year  = {2022},

date = {2022-01-01},

journal = {Anthropocene Review},

publisher = {SAGE Publications Inc.},

abstract = {The subalpine, atmospherically fed Śnieżka peatland, located in the Polish part of the Sudetes, is one of the nominated candidates for the GSSP of the Anthropocene. Data from two profiles, Sn1 (2012) and Sn0 (2020), from this site are critical for distinguishing the proposed epoch, while an additional core Sn2 is presented to support main evidence. The Sn0 archive contains a wide array of critical markers such as plutonium (Pu), radiocarbon (F14C), fly ash particles, Hg and stable C and N isotopes which are consistent with the previously well documented 210Pb/14C dated Sn1 profile, which provides a high-resolution and comprehensive database of trace elements and rare earth elements (REE), Pb isotopes, Pu, Cs, pollen and testate amoebae. The 1952 worldwide appearance of Pu, owing to its global synchronicity and repeatability between the cores, is proposed here as a primary marker of the Anthropocene, supported by the prominent upturn of selected chemostratigraphic and biostratigraphic indicators as well as the appearance of technofossils and artificial radionuclides. © The Author(s) 2022.},

note = {1},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85139797575,

title = {A multi-analytical approach for the analysis of cation distribution in a aluminoceladonite structure},

author = { M. Kądziołka-Gaweł and M. Dulski and M.B. Czaja and T. Krzykawski and M. Szubka},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85139797575&doi=10.24425%2fagp.2022.140430&partnerID=40&md5=599a21fd2a55de8dc90167ee4ef61efa},

doi = {10.24425/agp.2022.140430},

issn = {00015709},

year  = {2022},

date = {2022-01-01},

journal = {Acta Geologica Polonica},

volume = {72},

number = {3},

pages = {353-368},

publisher = {Polska Akademia Nauk},

abstract = {In this paper cation arrangement in two samples of aluminoceladonite, emerald-green and dark-green were studied by Mössbauer, Raman and X-ray photoelectron spectroscopies. The X-ray photoelectron spectroscopy (XPS) spectra obtained in the region of the Si2p, Al2p, Fe2p, K2p, and O1s core levels provided information, for the first time highlighting a route to identify the position of Si, Al, K, and Fe cations in a structure of layered silicates. The XPS analysis showed the presence of Al in tetrahedral and octahedral coordination while the K2p line indicated the possibility of K+ substitution by other cations in interlayer sites. Mössbauer spectroscopy provided information about crystal chemistry with respect to the local electronic and geometric environment around the Fe atom and to distortions of the polyhedra. It turned out that iron was located mostly in the cis-octahedra position wherein about 75% of iron appeared in the form of Fe3+. The most preferred cation combinations around Fe corresponded to 3Fe3+ ions and MgFe2+Fe3+/2MgFe3+. Raman spectroscopy illustrated aluminium substitution in silicon and iron positions wherein the concentration of the aluminium determined the degree of structural distortion within the layered system. These isomorphic substitutions implied a typical band arrangement in the hydroxyl region, which has not been observed in celadonites so far. © 2022 Polish Academy of Sciences. All rights reserved.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85118206845,

title = {Luminescence properties of tetrahedral coordinated mn2+; genthelvite and willemite examples},

author = { M.B. Czaja and R. Lisiecki and R. Juroszek and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85118206845&doi=10.3390%2fmin11111215&partnerID=40&md5=051fcc57b4ba4164f67dc932f01c9e08},

doi = {10.3390/min11111215},

issn = {2075163X},

year  = {2021},

date = {2021-01-01},

journal = {Minerals},

volume = {11},

number = {11},

publisher = {MDPI},

abstract = {The cause of the split of4A4E(4G) Mn2+ excited level measured on minerals spectra is discussed. It is our view that ∆E = |4E(4G) − 4A(4G)| should be considered an important spectroscopic parameter. Among the possible reasons for the energy levels splitting taken under consideration, such as the covalent bond theory, the geometric deformation of the coordination polyhedron and the lattice site’s symmetry, the first one was found to be inappropriate. Two studied willemite samples showed that the impurities occur in one of the two available lattice sites differently in both crystals. Moreover, it was revealed that the calculated crystal field Dq parameter can indicate which of the two non-equivalent lattice sites positions in the willemite crystal structure was occupied by Mn2+ . The above conclusions were confirmed by X-ray structure measurements. Significant differences were also noted in the Raman spectra of these willemites. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.},

note = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85112063705,

title = {Ab initio studies for characterization and identification of nanocrystalline copper pyrophosphate confined in mesoporous silica},

author = { S. Pastukh and M. Laskowska and M. Dulski and T. Krzykawski and K. Parlinski and P. Piekarz},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85112063705&doi=10.1088%2f1361-6528%2fac10e5&partnerID=40&md5=610aa5c02c691b307996fcf27b66f2ea},

doi = {10.1088/1361-6528/ac10e5},

issn = {09574484},

year  = {2021},

date = {2021-01-01},

journal = {Nanotechnology},

volume = {32},

number = {41},

publisher = {IOP Publishing Ltd},

abstract = {Here we employ a novel method for preparing the homogeneous copper pyrophosphate nanocrystals inside silica mesopores. In order to characterize and identify synthesized nanocrystals we performed the ab initio studies of the α phase of Cu2P2O7. The electronic and crystal structure were optimized within the density functional theory with the strong electron interactions in the 3d states on copper atoms and van der Waals corrections included in calculations. The relaxed lattice parameters and atomic positions agree very well with the results of the diffraction measurements for nanocrystalline copper pyrophosphates embedded inside SBA-15 silica pores. The obtained Mott insulating state with the energy gap of 3.17 eV exhibits the antiferromagnetic order with magnetic moments on copper atoms (0.8 mB) that is compatible with the experimental studies. The phonon dispersion relations were obtained to study the dynamical properties of the Cu2P2O7 lattice and the element-specific atomic vibrations were analyzed using the partial phonon density of states. The calculated Raman spectrum revealed the consistency of typical bands of Cu2P2O7 with the experimental data. The investigation that combines a new synthesis of nanomaterials with the first-principles calculations is important for better characterization and understanding of the physical properties relevant for nanotechnological applications. © 2021 IOP Publishing Ltd Printed in the UK},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85106324550,

title = {Impact of high temperatures on aluminoceladonite studied by Mössbauer, Raman, X-ray diffraction and X-ray photoelectron spectroscopy},

author = { M. Kądziołka-Gaweł and M.B. Czaja and M. Dulski and T. Krzykawski and M. Szubka},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106324550&doi=10.1007%2fs00710-021-00753-z&partnerID=40&md5=beda3ff9d1d83148d327c52313b16d36},

doi = {10.1007/s00710-021-00753-z},

issn = {09300708},

year  = {2021},

date = {2021-01-01},

journal = {Mineralogy and Petrology},

volume = {115},

number = {4},

pages = {431-444},

publisher = {Springer},

abstract = {Mössbauer, Raman, X-ray diffraction and X-ray photoelectron spectroscopies were used to examine the effects of temperature on the structure of two aluminoceladonite samples. The process of oxidation of Fe2+ to Fe3+ ions started at about 350 °C for the sample richer in Al and at 300 °C for the sample somewhat lower Al-content. Mössbauer results show that this process may be associated with dehydroxylation or even initiate it. The first stage of dehydroxylation takes place at a temperature > 350 °C when the adjacent OH groups are replaced with a single residual oxygen atom. Up to ~500 °C, Fe ions do not migrate from cis-octahedra to trans-octahedra sites, but the coordination number of polyhedra changes from six to five. This temperature can be treated as the second stage of dehydroxylation. The temperature dependence on the integral intensity ratio between bands centered at ~590 and 705 cm−1 (I590/I705) clearly reflects the temperature at which six-coordinated polyhedra are transformed into five-coordinated polyhedra. X-ray photoelectron spectra obtained in the region of the Si2p, Al2p, Fe2p, K2p and O1s core levels, highlighted a route to identify the position of Si, Al, K and Fe cations in a structure of layered silicates with temperature. All the measurements show that the sample with a higher aluminum content and a lower iron content in octahedral sites starts to undergo a structural reorganization at a relatively higher temperature than the less aluminum-rich sample does. This suggests that iron may perform an important role in the initiation of the dehydroxylation of aluminoceladonites. © 2021, The Author(s).},

note = {1},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85100541579,

title = {Heavy metal- and organic-matter pollution due to self-heating coal-waste dumps in the Upper Silesian Coal Basin (Poland)},

author = { Á. Nádudvari and B. Kozielska and A.K. Abramowicz and M.J. Fabiańska and J. Ciesielczuk and J. Cabała and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100541579&doi=10.1016%2fj.jhazmat.2021.125244&partnerID=40&md5=07ef9df8d36be53a4c471da5c1dfc7c6},

doi = {10.1016/j.jhazmat.2021.125244},

issn = {03043894},

year  = {2021},

date = {2021-01-01},

journal = {Journal of Hazardous Materials},

volume = {412},

publisher = {Elsevier B.V.},

abstract = {This study provides potential insight between self-heating coal-waste dumps and related environmental pollution in southern Poland. Samples collected from dumps in the Upper Silesian Coal Basin were used to quantify released contents of organic- and inorganic pollutants, i.e., polycyclic aromatic hydrocarbons (PAHs) and trace elements (Pb; Cd; Cr; Cu; Zn; Ni; Hg; As). Elevated Hg concentrations (~100–1078 mg/kg) and Pb (~600–2000 mg/kg) attest to the evaporation of these metals from deeper parts of the dumps. The acidic pH levels (3.0–4.5) may help to mobilize these elements. Pearson's correlation coefficients for samples analyzed by AAS and ICP-MS indicate a similar origin for Cd, Zn, and As. Mostly 2- and 3-ring PAHs, especially anthracene in burnt soil, dominate in the samples. Chlorinated PAHs, thiophenol, pyridines, quinolines (and derivatives) in thermally-altered samples, and waste containing pyrolytic bitumen indicate coking conditions. The high levels of Hg, Pb, and Cd, and chlorinated PAHs and nitrogen heterocycles formed or enriched during self-heating in these dumps should be deemed a significant environmental hazard. Calculating the lifetime cancer risks due to PAHs and heavy metals accumulations in the dumps are substantial, and access to these dumps should be prohibited. © 2021 Elsevier B.V.},

note = {12},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85100912172,

title = {Mineralogical and chemical specificity of dusts originating from iron and non-ferrous metallurgy in the light of their magnetic susceptibility},

author = { M. Jabłońska and M. Rachwał and M. Wawer and M. Kądziołka-Gaweł and E. Teper and T. Krzykawski and D. Smołka-Danielowska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100912172&doi=10.3390%2fmin11020216&partnerID=40&md5=f081307b27e058863e196a0730125ebf},

doi = {10.3390/min11020216},

issn = {2075163X},

year  = {2021},

date = {2021-01-01},

journal = {Minerals},

volume = {11},

number = {2},

pages = {1-20},

publisher = {MDPI AG},

abstract = {This study aims at detailed characteristics and comparison between dusts from various iron and non-ferrous metal production processes in order to identify individual mineral phases, chemical composition, and their influence on the values of magnetic susceptibility. Various analytical methods used include inductively coupled plasma optical emission spectroscopy, X-ray diffrac-tion, scanning electron microscopy, and Mössbauer spectroscopy integrated with magnetic susceptibility measurements and thermomagnetic analysis. Metallurgical wastes that have arisen at different production stages of iron and non-ferrous steel are subjected to investigation. The analyzed dust samples from the iron and non-ferrous metallurgy differ in terms of magnetic susceptibility as well as their mineral and chemical composition. The research confirmed the presence of many very different mineral phases. In particular, interesting phases have been observed in non-ferrous dust, for example challacolloite, which was found for the first time in the dusts of non-ferrous metallurgy. Other characteristic minerals found in non-ferrous metallurgy dusts are zincite, anglesite, and lanarkite, while dusts of iron metallurgy contain mostly metallic iron and iron-bearing minerals (magnetite; hematite; franklinite; jacobsite; and wüstite), but also significant amounts of zincite and calcite. © 2021 by the author. Licensee MDPI, Basel, Switzerland.},

note = {4},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85104607475,

title = {Empa, xrd, and raman characterization of ag-bearing djurleite from the lubin mine, lower silesia, Poland},

author = { K. Szopa and T. Krzykawski and K. Banasik and P. Król and S. Skreczko and S.A. Mounteanou and M. Koziarska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104607475&doi=10.3390%2fmin11050454&partnerID=40&md5=0a3379ebee57c4de44e87f8293747dab},

doi = {10.3390/min11050454},

issn = {2075163X},

year  = {2021},

date = {2021-01-01},

journal = {Minerals},

volume = {11},

number = {5},

publisher = {MDPI AG},

abstract = {The chalcocite group minerals are widely distributed among different hydrothermally affected rocks, the oxidized zone of copper sulfide deposits, or may be even crystalline from supersat-urated volcanic gases. Some of the chalcocite group minerals form the main Cu orebodies. Djurleite (Cu31S16) is a rare member of the chalcocite group, with a very complex structure. The physical and chemical similarities between all members of the group make them almost unidentifiable by macroscopic and microscopic methods. In this study, Ag-bearing djurleite from the Kupferschiefer deposits, Lower Silesia, Poland, is characterized by EMPA (Electron Microprobe Analyses), XRD (X-Ray Diffraction), and Raman spectroscopy. Djurleite from the investigated site has the following general, average chemical formula: Cu30.86Ag0.1Fe0.04S16. The Ag content is up to 0.55 wt.%, while Fe is up to 0.19 wt.%. The presence of djurleite confirms a low-temperature (~90◦C), hydrothermal origin of the Cu-Ag deposit in Kupferschiefer, which is consistent with previously studies. Moreover, the authors believe that Ag-rich djurleite may often be mistaken for Ag-rich chalcocite, which used to be one of the main Ag-bearing minerals in the orebody from the Cu-Ag deposit in the Fore-Sudetic Monocline. However, the confirmation of such a statement requires more samples, which should be studied in detail. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.},

note = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85088039706,

title = {Slags from Ruda Śląska, Poland as a large-scale laboratory for the crystallization of rare natural rocks: melilitolites and paralavas},

author = { R. Warchulski and A. Gawęda and K. Kupczak and K. Banasik and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088039706&doi=10.1016%2fj.lithos.2020.105666&partnerID=40&md5=9d90e3fec170517c9d23826f6d133b03},

doi = {10.1016/j.lithos.2020.105666},

issn = {00244937},

year  = {2020},

date = {2020-01-01},

journal = {Lithos},

volume = {372-373},

publisher = {Elsevier B.V.},

abstract = {Zinc and lead smelting slags from Ruda Śląska are unique in their chemistry and phase composition, which resemble rare natural rocks such as paralavas and melilitolites. Moreover, considering its size, we can treat a pyrometallurgical slag dump as a geological body. In slags from Ruda Śląska the assemblage melilite ± pseudowollastonite ± wollastonite ± plagioclase was discovered in glassy slag. High-temperature experiments were performed to determine the temperature conditions and to reconstruct the crystallization of such an assemblage. Two slag samples were subjected to complete melting and crystallization with controlled thermal gradients of: 53.25 °C/h, 15.20 °C/h and 7.60 °C/h. The results showed that crystal nucleation started at temperatures of 1250-1300 °C depending on the fluctuations of chemical composition. In both samples the thermal gradient only partly influenced the phase differentiation, being rather responsible for the disappearance of the primary glass. Moreover, even slight differences in chemical composition resulted in changes in phase assemblages under the same temperature conditions (mll + gls vs pwol+pl + mll + gls). It was proven that it is due to the combination of undercooling conditions and solidus dependences in the åkermanite – gehlenite solid solution. The occurrence of such phenomena should be considered in natural rocks with similar composition. In the case of the Ruda Śląska slags it explains the dominance of glassy slag in that location. The experiments gave us an opportunity to observe and precisely analyze crystallization in real time, providing new insights into the creation of slags and their natural analogues. However, the study has also shown that possible variations of the original crystallization should always be assessed. © 2020 Elsevier B.V.},

note = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85088957700,

title = {The impact of the functionalization of silica mesopores on the structural and biological features of SBA-15},

author = { M. Dulski and M. Laskowska and S. Sułowicz and T. Krzykawski and O. Pastukh and P.M. Zieliński and P. Pawlik and A. Nowak and Ł. Laskowski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088957700&doi=10.1016%2fj.micromeso.2020.110453&partnerID=40&md5=00caca3ae7d7fdaad27d70ad73001b6a},

doi = {10.1016/j.micromeso.2020.110453},

issn = {13871811},

year  = {2020},

date = {2020-01-01},

journal = {Microporous and Mesoporous Materials},

volume = {306},

publisher = {Elsevier B.V.},

abstract = {Hydrophobic and hydrophilic silver-functionalized SBA-15 silica nanocomposites were prepared via direct synthesis using the so-called BOTTOM-UP approach to nanotechnology. This process enables silica-based nanocomposites with a controlled metal content to be fabricated. XRD, XPS, Raman, SEM-EDX and TEM methods were used to describe the physicochemical properties of these systems. The surface atomic content of silver (XPS) was estimated at approximately 0.03 at.% and 0.04 at.% compared to the bulk signal (SEM-EDX), which was determined to be about 0.33 at.% and 0.48 at.%, respectively for the non-silylated and silylated systems. The XPS studies that were carried out for these two structures revealed the presence of elemental and/or oxidized silver on the surfaces. However, in the more volumetric XRD studies, there was no clear signal that corresponded to this metal, which suggests the presence of an ionic form of silver. Calcination was used to obtain the silver-decorated porous silica ceramic composites, for which the calcination temperature was determined from TGA/DTG studies. The calcination resulted in the compensation of the surface and bulk atomic content of silver at approximately 0.1 at.% (on both the surface and the bulk). The wettability measurements classified silylated specimens as well as silylated and calcined systems as being hydrophilic and hydrophobic, respectively. Low-angle diffraction confirmed the mesoporous character of the silica with hexagonal pore channels regardless of the degree of functionalization or calcination. The Raman data illustrated the impact of the silver on the propyl-carbonate chains and silica structure. Finally, the most vigorous bactericidal activity was found against Staphylococcus aureus and Escherichia coli for a hydrophilic system with a low silver content and a calcined sample with a slightly higher silver concentration. © 2020 Elsevier Inc.},

note = {10},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85086649704,

title = {Crystal chemistry of an erythrite-köttigite solid solution (Co3–xznx) (aso4)2·8h2o},

author = { J. Ciesielczuk and M. Dulski and J. Janeczek and T. Krzykawski and J. Kusz and E. Szełęg},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85086649704&doi=10.3390%2fmin10060548&partnerID=40&md5=9390c4bc3f2543fcf7fafd4e546610fd},

doi = {10.3390/min10060548},

issn = {2075163X},

year  = {2020},

date = {2020-01-01},

journal = {Minerals},

volume = {10},

number = {6},

pages = {1-25},

publisher = {MDPI AG},

abstract = {A wide compositional range, covering about 90% of an expected erythrite-köttigite substitutional solid solution with extreme compositions of (Co2.84Mg0.14Zn0.02) (AsO4)2·8H2O and (Zn2.74Co0.27) (AsO4)2·8H2O, was revealed in a suite of samples from a polymetallic ore deposit in Miedzianka, SW Poland. Members of the solid solution series were examined by means of Electron Probe Microanalysis (EPMA), Scanning Electron Microscopy (SEM)/Energy-Dispersive Spectrometer (EDS), X-ray single-crystal and powder diffraction, and Raman spectroscopy. Metal cations were randomly distributed between two special octahedral sites in the erythrite–köttigite structure. In response to Co ↔ Zn substitutions, small but significant changes in bond distances (particularly in [AsO4] tetrahedra), rotation, and distortion of co-ordination polyhedra were observed. Two sub-series of dominant cationic substitutions (Co-Mg-Ni and Co-Fe-Zn) were noted within the arsenate series of vivianite-group minerals linked by erythrite. The paragenetic sequence erythrite → Zn-rich erythrite → Co-rich köttigite → köttigite reflects the evolution of the solution’s pH towards increased acidity and a relative increase in the concentration of Zn ions following precipitation of erythrite. © 2020 by the authors.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85077656516,

title = {Multi-tool (LA-ICPMS, EMPA and XRD) investigation on heavy minerals from selected holocene peat-bog deposits from the upper vistula River Valley, Poland},

author = { K. Szopa and S. Skreczko and D. Chew and T. Krzykawski and A. Szymczyk},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077656516&doi=10.3390%2fmin10010009&partnerID=40&md5=91b6a146fe89ed23982da4b9c0650c91},

doi = {10.3390/min10010009},

issn = {2075163X},

year  = {2020},

date = {2020-01-01},

journal = {Minerals},

volume = {10},

number = {1},

publisher = {MDPI AG},

abstract = {Peat sediments represent important environmental and climatic archives, as well as recording information on the processes affecting the formation of these deposits; combined these data can be used for paleoreconstruction of peat-bogs. In this paper we characterize heavy mineralrich sandy layers from two peat-bog sites in Mizerów and Strumień (Poland). In both cases, the most common identified mineral suite is: epidote, staurolite, tourmaline (dravite and schörl), garnet, spinel, Al2SiO5 polymorphs (sillimanite; kyanite; andalusite), amphibole (mainly hornblende), pyroxene (e.g.; richterite; diopside), perovskite, topaz, cordierite, apatite, monazite, chromite, ilmenite, chlorite, iron oxides, rutile and siderite. This mineral suite is characteristic of a metamorphic aureole surrounding a magmatic body. Pyrite is likely authigenic in origin. Apatite and monazite were employed for U-Pb and CHIME dating, respectively. Based on the U-Pb age information composition and textural features of selected minerals, different provenance areas were indicated: the Tatra Massif, the Bohemian Massif, and the Silesian Basin area. Transport of the investigated mineral phases was linked to development of both the Odra (praOdra) and the Vistula valleys. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85074302005,

title = {Adsorption of Eu(III) onto bentonite and phyllite: A comparative study},

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

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074302005&doi=10.1016%2fj.clay.2019.105330&partnerID=40&md5=8dbb170b69e50a5def0bb809e6ba37c9},

doi = {10.1016/j.clay.2019.105330},

issn = {01691317},

year  = {2019},

date = {2019-01-01},

journal = {Applied Clay Science},

volume = {183},

publisher = {Elsevier Ltd},

abstract = {Disposal of radioactive wastes in underground repositories necessitates knowledge on adsorption and mobility of radionuclides in host rocks (geologic barrier) and in engineered barriers, including clay barrier. The batch adsorption of Eu(III) (a homologue for trivalent radionuclides) onto phyllite compared to bentonite was studied as a function of solution pH (4.5 and 7.0), solution to clay rock ratio (10:1; 100:1; 500:1 and 1000:1), and various Eu(III) concentrations (0.01–190 mg/L; 0.658 × 10−7–1.25 × 10−3 M). The experimental data were interpreted using the isotherm models of Langmuir, Freundlich, Dubinin-Radushkevich, Tóth, and Sips. Adsorption/desorption experiments and bonding strength calculations showed that the adsorption behavior depends on the mineral composition of sorbents, solution pH, the initial concentration of Eu(III), and liquid: solution ratio (L:S). The cation exchange within the interlayer space of montmorillonite is the main adsorption mechanism in bentonite. Cation exchange on the minerals surface, chemical reactions leading to the precipitation of new phases, the electrostatic effect at a low initial concentration of Eu (III), and pH > pHPZC are adsorption mechanisms in phyllites. Solution pH has a pronounced effect on the Eu(III) adsorption onto phyllite due to surface protonation. Fe-oxides and hydroxides play a significant role in the adsorption/desorption of Eu(III) on phyllites. The best fitting was obtained for three-parameter isotherm models of Sips and Tóth. The mechanism of Eu(III) binding is complex and does not follow the ideal monolayer adsorption. While the maximum adsorption capacity of phyllite is 2.5 to 6.6 times lower than of bentonite, depending on the solution pH, it is high enough to guarantee efficacious and durable removal of actinides from the contaminated solutions, particularly at their low concentrations. Phyllites adsorption and mechanical properties make them suitable additives to bentonite in a clay barrier. © 2019 Elsevier B.V.},

note = {6},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85070910533,

title = {The afterglow effect of Mn-bearing natural LiAlSi2O6 spodumene crystals},

author = { M.B. Czaja and R. Lisiecki and M. Kądziołka-Gaweł and A. Winiarski and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070910533&doi=10.1016%2fj.optmat.2019.109321&partnerID=40&md5=2b571343cd4a08e0e5137e742457c898},

doi = {10.1016/j.optmat.2019.109321},

issn = {09253467},

year  = {2019},

date = {2019-01-01},

journal = {Optical Materials},

volume = {96},

publisher = {Elsevier B.V.},

abstract = {For studied LiAlSi2O6 spodumene crystals, afterglow effect was observed and explained. The luminescence spectra under femtosecond excitation have been presented for this crystal for the first time. The emission bands of point defects in blue, besides those of Mn2+ in orange, have been measured. We demonstrate that emission from defects causes sustaining of emission of Mn2+, and thus, the afterglow phenomenon occurs. The various quantitative ratio of Mn2+ to defects causes the changes in afterglow phenomenon. © 2019 Elsevier B.V.},

note = {5},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85057211445,

title = {Chemical and mineral composition of furnace slags produced in the combustion process of hard coal},

author = { D. Smołka-Danielowska and M. Kądziołka-Gaweł and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85057211445&doi=10.1007%2fs13762-018-2122-z&partnerID=40&md5=fa168d46ba7ce63374dccd61b437fa89},

doi = {10.1007/s13762-018-2122-z},

issn = {17351472},

year  = {2019},

date = {2019-01-01},

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

volume = {16},

number = {10},

pages = {5387-5396},

publisher = {Center for Environmental and Energy Research and Studies},

abstract = {Presented are the results of the examination of the chemical and mineral composition as well as iron compounds in furnace hearth slags coming into existence after the burning of hard coal. The samples of furnace hearth slags from heat and power plant and the hearths of the individual home furnaces fitted out with grate firings were compared. The examination methods like X-ray diffraction (XRD) with powder method, Mössbauer spectroscopy, scanning electron microscopy and ICP analysis were used. The main components of furnace hearth slags are SiO2, Al2O3 and Fe2O3. On the basis of the X-ray diffraction, it was found that the domination components of furnace hearth slags are mullite and quartz. Furnace hearth slags are different as for the content of the concentration of toxic elements (Cd; Cr; Ni; Tl; Pb; Zn; As; Ba and Cu) and Fe. © 2018, The Author(s).},

note = {7},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85065055322,

title = {Deposition of mullite in peatlands of southern Poland: Implications for recording large-scale industrial processes},

author = { B. Smieja-Król and B. Fiałkiewicz-Kozieł and A. Michalska and T. Krzykawski and D. Smołka-Danielowska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065055322&doi=10.1016%2fj.envpol.2019.04.077&partnerID=40&md5=62e3fbca496b57f2ac4d2a1d1fab4d20},

doi = {10.1016/j.envpol.2019.04.077},

issn = {02697491},

year  = {2019},

date = {2019-01-01},

journal = {Environmental Pollution},

volume = {250},

pages = {717-727},

publisher = {Elsevier Ltd},

abstract = {Not all contaminants are harmful, mullite has the potential to be useful. © 2019 Elsevier LtdMullite, a pure aluminosilicate (Al6Si2O13), is a rare natural rock component, known for centuries as a very resistant ceramic material. It is also a common waste product of high-temperature coal combustion that is emitted in quantity from coal-based power stations. The occurrence of mullite in two Sphagnum-dominated peatlands located near the Upper Silesia industrial region in southern Poland is described. For the first time, a complete record of mullite deposition in the peat profiles has been obtained by XRD analyses of ashed peat samples. The mullite distribution is compared with records of Hg, Pb and Cu. While mullite is supplied during high temperature processes only, Cu, Pb and Hg show more complex pattern of distribution. Both peat profiles contain elevated amounts of mullite in the time span between ca 1950–1990 with a maximum content in ca 1980. The first appearance (∼1900) of mullite is indicative of the beginning of energy production in coal-based power plants in the region. Mullite is proposed here as an indicator of industrialization in geological records. It is resistant to post-depositional processes, emitted globally, and restricted to large-scale industry. © 2019 Elsevier Ltd},

note = {8},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85065627057,

title = {Qatranaite, CaZn2(OH)6·2H2O: A new mineral from altered pyrometamorphic rocks of the Hatrurim Complex, Daba-Siwaqa, Jordan},

author = { Y. Vapnik and E.V. Galuskin and I.O. Galuskina and J. Kusz and M. Stasiak and T. Krzykawski and M. Dulski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065627057&doi=10.1127%2fejm%2f2019%2f0031-2833&partnerID=40&md5=1448e5dc20e402243501f16c183f0ba8},

doi = {10.1127/ejm/2019/0031-2833},

issn = {09351221},

year  = {2019},

date = {2019-01-01},

journal = {European Journal of Mineralogy},

volume = {31},

number = {3},

pages = {575-584},

publisher = {Gebruder Borntraeger Verlagsbuchhandlung},

abstract = {The new mineral qatranaite, CaZn2(OH)6·2H2O(P21/c; Z =2;a = 6.3889(8) Å; b = 10.9692(14) Å; c = 5.7588(8) Å; β = 101.949(14)°; V = 394.84(9) Å3; IMA2016-024), was found in cuspidine veins cutting spurrite marble in part of the pyrometamorphic Hatrurim Complex located in the Siwaqa region, Jordan. Qatranaite is the natural counterpart of synthetic calcium hexahydroxodizincate dihydrate. It forms colourless or white crystals up to 0.3 mm in size. Qatranaite is associated with cuspidine, sphalerite, Se-bearing thaumasite, afwillite, calcite, srebrodolskite–brownmillerite, spinel–magnesioferrite, spurrite and fluorapatite– fluorellestadite. The new mineral has an irregular fracture; no cleavage or parting were observed. The calculated density of qatranaite is 2.598 g cm3, the microhardness VHN25 = 171 kg mm-2 corresponds to ~3.5 in the Mohs’ hardness scale. The qatranaite structure is formed by hydroxylated pyroxene-like chains [Zn2(OH)6]2-, between which the [Ca(OH2)2]2+ groups are located. The Ca atoms are eight-fold coordinated in [Ca(OH)4(OH2)2] polyhedra which share the four hydroxyl oxygen atoms with the Zn-centred tetrahedra. The main bands in the Raman spectrum of qatranaite are related to vibrations in Zn(OH)24 tetrahedra (cm-1): 297, 344 (v2 + v4); 440, 449, 479 (v1 + v3); 990 (vZn–O–Zn); 1065 (vZn–OH). Strong bands at 3190, 3497 and 3624 cm-1 are assigned to OH stretching vibrations. The strongest diffraction lines are [dhkl;Å(I)]: 6.25 (33), 5.002 (14), 3.992 (23), 3.124 (47), 2.881 (100), 2.723 (28), 2.451 (12), 1.575 (20). Qatranaite crystallization was preceded by a high-temperature alteration of spurrite rocks, reflected in the formation of cuspidine along fractures. The formation of qatranaite-bearing veins resulted from low-temperature (<70 °C) rock alteration by hyper-alkaline solutions. © 2019 E. Schweizerbart’sche Verlagsbuchhandlung, 70176 Stuttgart, Germany.},

note = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85049327560,

title = {Mineralogy, chemistry and rock mechanic parameters of katoite-bearing rock from the Hatrurim Basin, Israel},

author = { Y. Vapnik and V. Palchik and I.O. Galuskina and K. Banasik and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049327560&doi=10.1016%2fj.jafrearsci.2018.06.020&partnerID=40&md5=fa60e64d1e276915f5746a880c1569df},

doi = {10.1016/j.jafrearsci.2018.06.020},

issn = {1464343X},

year  = {2018},

date = {2018-01-01},

journal = {Journal of African Earth Sciences},

volume = {147},

pages = {322-330},

publisher = {Elsevier Ltd},

abstract = {Katoite-bearing rock was revealed in the Hatrurim Basin, Israel. The rock formed by hydration of pyrometamorphic calc-silicate assemblages at temperatures higher than 200 °C. The likely age of the hydration process is Miocene, about 6.2 Ma. The main phases of katoite-bearing rock are minerals of the katoite-grossular series, calcium hydrosilicates, fluorapatite and carbonate. Chemistry and mineralogy of katoite-bearing rock resembles belite sulfoaluminate concrete. Studied samples show two sets of porosities, which are low and high, between 22 and 28% and between 29 and 39%, respectively. Increased porosity characterizes non-weathered katoite-bearing samples, whereas decreased porosity is linked to carbonation during weathering. Katoite remained stable in spite of natural alkaline leaching. Although high porosity samples display decreasing strength parameters, most observed rock mechanic characteristics are comparable to modern-day concrete. We suggest that obtained data on natural katoite-bearing rock can simulate the longevity and durability of belite sulfoaluminate concrete. © 2018 Elsevier Ltd},

note = {5},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85055793451,

title = {Spectroscopic characterization and thermal recrystallization study of an unknown Metamict phase from Tuften quarry, southern Norway},

author = { D. Malczewski and M. Dziurowicz and T. Krzykawski and A. Grabias},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055793451&doi=10.3749%2fcanmin.1800015&partnerID=40&md5=c9c0f7c24799e3a2150d50de2bb00284},

doi = {10.3749/canmin.1800015},

issn = {00084476},

year  = {2018},

date = {2018-01-01},

journal = {Canadian Mineralogist},

volume = {56},

number = {4},

pages = {365-373},

publisher = {Mineralogical Association of Canada},

abstract = {This paper presents the results of 57Fe Mössbauer spectroscopy, SEM-EDS analysis, gamma-ray spectrometry, and X-ray diffraction (XRD) patterns for an unknown metamict phase (UMP) from a syenite pegmatite at Tuften quarry, southern Norway. The sample exhibits232Th and238U activities of 137 and 2.6 Bq g-1, respectively, and a calculated total absorbed a-dose of 83 1015 a-decay mg-1. Its chemical composition falls generally between chevkinite-(Ce)-perrierite-(Ce) and allanite-(Ce)- ferriallanite-(Ce) mineral compositions. The Mössbauer spectrum of an untreated UMP sample can be fitted to two Fe2+ and Fe3+ quadrupole doublets assigned to octahedral coordination with a relative Fe2+/RFe ratio of 0.11. A sample of the UMP was also annealed in argon for one hour at 1273 K. Powder of the completely recrystallized sample was subjected to XRD analysis and indexed to the P121 space group with unit-cell dimensions of a 8.179 A , b 14.16 A , c 4.291 A , and β = 96.718. The corresponding Mössbauer spectrum is characterized by the presence of three quadrupole doublets also assigned to Fe2+ and Fe3+ in octahedral coordination with a relative Fe2+/RFe ratio of 0.15. One of the Fe3+ doublets shows extremely high quadrupole splitting of 2.60 mm s-1, implying extreme distortion of the coordination octahedra. © 2018 Mineralogical Association of Canada. All rights reserved.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85055774475,

title = {222Rn and220Rn emanations from zircon crystals as a function of absorbed α-doses},

author = { D. Malczewski and M. Dziurowicz and T. Krzykawski and A. Stryjewski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055774475&doi=10.3749%2fcanmin.1700089&partnerID=40&md5=c577824078595f3ded83c851d1787065},

doi = {10.3749/canmin.1700089},

issn = {00084476},

year  = {2018},

date = {2018-01-01},

journal = {Canadian Mineralogist},

volume = {56},

number = {4},

pages = {451-462},

publisher = {Mineralogical Association of Canada},

abstract = {Zircon (ZrSiO4) contains small amounts of U and Th substituted for Zr in the crystal matrix. This can cause structural damage through progressive overlap of recoil nuclei collision cascading from α-decay of238U,232Th,235U, and their daughter products. Radioactivity can ultimately lead to metamictization and associated open-system behavior of parent-daughter radionuclides within the mineral. We measured222Rn and220Rn emanations, along with uranium and thorium concentrations, from 10 large zircon crystals of differing ages and from different global locations. The calculated total absorbed a-doses ranged from 1.631014 α-decay mg-1 (Seiland zircon) to 5.331015 α-decay mg-1 (Grass Lake zircon).222Rn emanation coefficients ranged from 10-4 % (Renfrew zircon) to 4310-2 % (Miask zircon), while220Rn emanation coefficients varied from 3310-4 % (Minas Gerais zircon) to 7 3 10-2 % (Miask zircon). Both222Rn and220Rn emanation coefficients observed in this study correlate strongly with the absorbed a-dose from the232Th decay series. Radon emanations, however, do not correlate with the total absorbed α-dose. © 2018 Mineralogical Association of Canada. All rights reserved.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85050662575,

title = {Sharyginite, Ca3TiFe2O8a new mineral from the bellerberg Volcano, Germany},

author = { R. Juroszek and H. Krüger and I.O. Galuskina and B. Krüger and L. Jeżak and B. Ternes and J.A. Wojdyla and T. Krzykawski and L. Pautov and E.V. Galuskin},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85050662575&doi=10.3390%2fmin8070308&partnerID=40&md5=a1c916dfc17bce40bb8cf7d0ecd7ce34},

doi = {10.3390/min8070308},

issn = {2075163X},

year  = {2018},

date = {2018-01-01},

journal = {Minerals},

volume = {8},

number = {7},

publisher = {MDPI AG},

abstract = {The new mineral sharyginite, Ca3TiFe2O8(P21ma; Z = 2; a = 5.423(2) Å; b = 11.150(8) Å; c = 5.528(2) Å; V = 334.3(3) Å3), a member of the anion deficient perovskite group, was discovered in metacarbonate xenoliths in alkali basalt from the Caspar quarry, Bellerberg volcano, Eifel, Germany. In the holotype specimen, sharyginite is widespread in the contact zone of xenolith with alkali basalt. Sharyginite is associated with fluorellestadite, cuspidine, brownmillerite, rondorfite, larnite and minerals of the chlormayenite-wadalite series. The mineral usually forms flat crystals up to 100 µm in length, which are formed by pinacoids {100}, {010} and {001}. Crystals are flattened on (010). Sharyginite is dark brown, opaque with a brown streak and has a sub-metallic lustre. In reflected light, it is light grey and exhibits rare yellowish-brown internal reflections. The calculated density of sharyginite is 3.943 g·cm-3. The empirical formula calculated on the basis of 8 O apfu is Ca3.00(Fe3+ 1.00Ti4+ 0.86Mn4+ 0.11Zr0.01Cr3+ 0.01Mg0.01)Σ2(Fe3+ 0.76Al0.20Si0.04)Σ1.00O8. The crystal structure of sharyginite, closely related to shulamitite Ca3TiFeAlO8structure, consists of double layers of corner-sharing (Ti; Fe3+) O6octahedra, which are separated by single layers of (Fe3+O4) tetrahedra. We suggest that sharyginite formed after perovskite at high-temperature conditions >1000°C. © 2018 by the authors. Licensee MDPI, Basel, Switzerland.},

note = {5},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85064625238,

title = {Mineralogy and organic geochemistry of phyllite from the dewon–pokrzywna deposit, the opava mountains (SW Poland)},

author = { N. Sawicka and J. Janeczek and M.J. Fabiańska and K. Bahranowski and T. Krzykawski and A. Matuszewska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064625238&doi=10.7306%2fgq.1439&partnerID=40&md5=444ebf986d868924057862ff85588051},

doi = {10.7306/gq.1439},

issn = {16417291},

year  = {2018},

date = {2018-01-01},

journal = {Geological Quarterly},

volume = {62},

number = {4},

pages = {817-828},

publisher = {Polish Geological Institute},

abstract = {Phyllites from the Dewon–Pokrzywna deposit in the Opava Mts., SW Poland, were investigated by XRD (Rietveld method), XRF, EPMA, SEM, and ATR-FTIR from the perspective of their potential usage as a buffer and/or backfill material in a geological repository of radioactive waste. Organic matter dispersed in the phyllite matrix was analysed by GC-MS. Fine-grained Mg-Fe-muscovite (13 to 29 wt.%), Fe-ripidolite (10 to 25 wt.%), detrital quartz (20 to 46 wt.%), and albite (7 to 28 wt.%) ± microcline, illite or illite/smectite, and kaolinite are major minerals in phyllite samples. The chlorite/muscovite ratio ranges from 0.65 to 1.1. Mg-annite inherited from the precursor rock is a minor constituent. Detrital ilmenite is a dominant accessory mineral. Ancylite-(Ce) occurs in quartz-calcite-ripidolite veins. Two types of phyllite have been distinguished based on the proportion of phyllosilicates to silt fraction: argillaceous (47 to 55 wt.% phyllosilicates) and silt-rich (28 wt.% phyllosilicates). Argillaceous phyllite shows elevated content of alumina and moderate concentration of silica. It is highly enriched in Fe compared to phyllites from other localities worldwide. The BET specific surface area of argillaceous phyllite ranges from 1.73 to 3.64 m2/g. Whole-rock chemical composition, mineral assemblages, chlorite geothermometry, and the occurrence of aliphatic hydrocarbons suggest that argillaceous phyllite originated from a pelagic pelite protolith under low-temperature (260–370°C) greenschist to subgreenschist facies conditions. Persistent biomarkers are indicative of bacterial degradation of planktonic organic matter suspended in a high water column. Enrichment in Fe-rich chlorite and Mg,Fe-muscovite, low volume of interconnected pores with dominant mesopores suggest that argillaceous phyllite from the Dewon–Pokrzywna deposit is a potential candidate for a buffer and/or backfill material. © 2018, Polish Geological Institute. All rights reserved.},

note = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85052025380,

title = {Application of selected diffractive and microscopic methods to evaluate the physical state of drug and morphology of microspheres obtained by spray drying of furosemide with eudragit L30 D-55},

author = { A. Ostrózka-Cieślik and B. Sarecka-Hujar and T. Krzykawski and J. Karcz and A. Banys and A. Jankowski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052025380&partnerID=40&md5=92b6e6a84e840f5892c21b4509e1b1e0},

issn = {00016837},

year  = {2018},

date = {2018-01-01},

journal = {Acta Poloniae Pharmaceutica - Drug Research},

volume = {75},

number = {3},

pages = {759-765},

publisher = {Polish Pharmaceutical Society},

abstract = {In pharmaceutical technology, the analysis of physicochemical properties of raw materials, intermediates and products is part of quality control testing at each stage of designing formulations and in the routine evaluation of the final product. The aim of the study was to analyse the physical state of drug and the morphology of microspheres obtained by spray drying, in which furosemide was incorporated into the polymeric matrix of Eudragit L30 D-55. The following optimal parameters of the spray-drying process were established: aspirator capacity of 80%, Tin: 140OC, pump capacity: 10%. The laser diffraction method was used to analyse the size distribution of microspheres in the following furosemide-Eudragit L30 D-55 systems: 1: 1, 1: 3, 1: 5. X-ray powder diffraction was applied to compare the degrees of crystallinity of the final product and the starting material. Furosemide has crystal structure both before and after spray drying, it exists in polymorphic forms (form I crystals). No reflection from the crystalline phase has been found on the diffraction pattern of Eudragit. This is an amorphous substance. © 2018 Polish Pharmaceutical Society. All Rights Reserved.},

note = {1},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85011422687,

title = {Remnants of altered meteorite in the Cretaceous-Paleogene clay boundary in Poland},

author = { K. Szopa and T. Brachaniec and Ł. Karwowski and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85011422687&doi=10.1111%2fmaps.12815&partnerID=40&md5=e210250d845dfbf9dd84b4890e595274},

doi = {10.1111/maps.12815},

issn = {10869379},

year  = {2017},

date = {2017-01-01},

journal = {Meteoritics and Planetary Science},

volume = {52},

number = {4},

pages = {612-622},

publisher = {University of Arkansas},

abstract = {Fossil iron meteorites are extremely rare in the geological sedimentary record. The paleometeorite described here is the first such finding at the Cretaceous-Paleogene (K-Pg) boundary. In the boundary clay from the outcrop at the Lechówka quarry (Poland), fragments of the paleometeorite were found in the bottom part of the host layer. The fragments of meteorite (2–6 mm in size) and meteoritic dust are metallic-gray in color and have a total weight of 1.8181 g. Geochemical and petrographic analyses of the meteorite from Lechówka reveal the presence of Ni-rich minerals with a total Ni amount of 2–3 wt%. The identified minerals are taenite, kamacite, schreibersite, Ni-rich magnetite, and Ni-rich goethite. No relicts of silicates or chromites were found. The investigated paleometeorite apparently represents an independent fall and does not seem to be derived from the K-Pg impactor. The high degree of weathering did not permit the chemical classification of the meteorite fragments. However, the recognized mineral inventory, lack of silicates, and their pseudomorphs and texture may indicate that the meteorite remains were an iron meteorite. © The Meteoritical Society, 2017.},

note = {4},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84979743647,

title = {Diagenesis of echinoderm skeletons: Constraints on paleoseawater Mg/Ca reconstructions},

author = { P. Gorzelak and T. Krzykawski and J. Stolarski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979743647&doi=10.1016%2fj.gloplacha.2016.07.010&partnerID=40&md5=14a517c141f0ccdcf73d8fce101148d6},

doi = {10.1016/j.gloplacha.2016.07.010},

issn = {09218181},

year  = {2016},

date = {2016-01-01},

journal = {Global and Planetary Change},

volume = {144},

pages = {142-157},

publisher = {Elsevier B.V.},

abstract = {One of the most profound environmental changes thought to be reflected in chemical composition of numerous geological archives is Mg/Ca ratio of the seawater, which has varied dramatically throughout the Phanerozoic. Echinoderms that today typically form high magnesium calcite skeletons are increasingly being utilized as a proxy for interpreting secular changes in seawater chemistry. However, accurate characterization of the diagenetic changes of their metastable high magnesium calcite skeletons is a prerequisite for assessing their original, major-element geochemical composition. Here we expand the existing models of diagenesis of echinoderm skeleton by integration of various analytical methods that up to now rarely have been used to assess the diagenetic changes of fossil echinoderms. We validated the preservation of a suite of differently preserved echinoderm ossicles, mostly crinoids, ranging in age from the Cambrian through Recent. In 13 of 99 fossil echinoderm ossicles we found well-preserved porous microstructure (stereom), non-luminescent behaviour or blotchy dark color in cathodoluminescence, and distinct nanostructural features (layered and nanocomposite structure). Moreover, in representatives of such preserved samples, distribution of sulphates associated with organic matter is identical to those in Recent echinoderms. Only such ossicles, despite of local micrometer-scale diagenetic changes, were herein considered well-preserved, retaining their original major-element skeletal composition. By contrast, majority of samples show transformation to the stable low magnesium calcite that leads to obliteration of the primary geochemical and micro/nanostructural features and is accompanied with increase in cathodoluminescence emission intensity. Using only well-preserved fossil echinoderm samples, we found purely random variation in Mg/Ca in echinoderm skeletons through the observed time series; any periodicities in echinoderm skeletal Mg/Ca ratio which might be related to the secular transitions in calcite and aragonite seas were not confirmed. These findings suggest that, in contrast to some groups of organisms with relatively weak control over their biomineralization (such as algae; sponges; and bryozoans), in which polymorph mineralogies consistently changed according to the seawater type, application of fossil echinoderms, in particular crinoids, to seawater Mg/Ca reconstructions is unreliable. These data emphasize a key-role of physiological factors (the so-called vital effects) in echinoderm biomineralization. © 2016 Elsevier B.V.},

note = {14},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84979556541,

title = {Chemical composition and Raman spectroscopy of cornubite and its relation to cornwallite in Miedzianka, the Sudety Mts., Poland},

author = { J. Janeczek and J. Ciesielczuk and M. Dulski and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979556541&doi=10.1127%2fnjma%2f2016%2f0305&partnerID=40&md5=7db6072faa3e2f05c763e21e0b40bfc3},

doi = {10.1127/njma/2016/0305},

issn = {00777757},

year  = {2016},

date = {2016-01-01},

journal = {Neues Jahrbuch fur Mineralogie, Abhandlungen},

volume = {193},

number = {3},

pages = {265-274},

publisher = {E. Schweizerbart'sche Verlagsbuchhandlung},

abstract = {Cornubite, Cu5(AsO4)2(OH)4, occurs in association with chrysocolla, cornwallite-pseudomalachite and philipsburgitekipushite series, and malachite in weathered amphibolites in dumps around a historic mining town of Miedzianka (former Kupferberg) in the Sudety Mountains, SW Poland. The averaged chemical composition of cornubite determined by EPMA is expressed by the formula: (Cu5.07Zn0.04)5.11(As0.945P0.01V0.005Si0.025O4)2(OH)4. Unit cell dimensions are: a = 6.155(1) Å},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84936804021,

title = {Coprolites of marine vertebrate predators from the Lower Triassic of southern Poland},

author = { T. Brachaniec and R. Niedźwiedzki and D. Surmik and T. Krzykawski and K. Szopa and P. Gorzelak and M.A. Salamon},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84936804021&doi=10.1016%2fj.palaeo.2015.06.005&partnerID=40&md5=03de779ec6aa3c50fd80a47a25cbf1f8},

doi = {10.1016/j.palaeo.2015.06.005},

issn = {00310182},

year  = {2015},

date = {2015-01-01},

journal = {Palaeogeography, Palaeoclimatology, Palaeoecology},

volume = {435},

pages = {118-126},

publisher = {Elsevier},

abstract = {Numerous coprolites are described for the first time herein from the Lower Triassic (Olenekian) shallow marine sedimentary rocks in southern Poland. X-ray Diffraction and geochemical analyses show that they are preserved as calcium phosphate with small admixtures of quartz and calcite. Additionally, SEM and thin section studies revealed that they contain highly fragmented faunal remains (crinoids; molluscs and vertebrates). The size, shape, geochemistry, biostratigraphic distribution and co-occurrence with vertebrate skeletal remains imply that the coprolites at hand were likely produced by nothosaurids, the durophagous sauropterygian reptiles and actinopterygian (ray-finned) fish. The large number of recorded coprolites implies that durophagous predation has been intense during the Early Triassic and suggests that the so-called Mesozoic Marine Revolution probably started soon after the end-Permian extinction. Furthermore, discovery of sinusoidal trails attributable to nematodes in some coprolites implies that the intestinal parasitic associations with these predators had already evolved by at least the Early Triassic. © 2015 Elsevier B.V.},

note = {20},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84928674489,

title = {Coprolites of Late Triassic carnivorous vertebrates from Poland: An integrative approach},

author = { M. Zatoń and G. Niedźwiedzki and L. Marynowski and K. Benzerara and C. Pott and J. Cosmidis and T. Krzykawski and P. Filipiak},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928674489&doi=10.1016%2fj.palaeo.2015.04.009&partnerID=40&md5=6e3a83d886d48bd108c0f42490ab94d8},

doi = {10.1016/j.palaeo.2015.04.009},

issn = {00310182},

year  = {2015},

date = {2015-01-01},

journal = {Palaeogeography, Palaeoclimatology, Palaeoecology},

volume = {430},

pages = {21-46},

publisher = {Elsevier},

abstract = {Vertebrate coprolites derived from Upper Triassic terrestrial deposits of southern Poland have been subjected to various analytical methods in order to retrieve information about their composition, producer's diet and nature of the microscopic structures preserved in the groundmass. Morphologically, the coprolites have been classified into four morphotypes, of which only three were further analysed due to their good state of preservation. Their groundmass are composed of francolite, a carbonate-rich apatite, in which abundant coccoid structures are preserved. Based on various microscopic and organic geochemical techniques, they are interpreted as fossilized bacteria which could have mediated the phosphatization of the faeces. The thin sectioning revealed that the coprolites consist of those containing exclusively bone remains, and those preserving both bone and plant remains. Those coprolites preserving only vertebrate remains are suggestive for exclusive carnivorous diet of the producers. However, the interpretation of coprolites consisting of both vertebrate and plant remains is more debatable. Although they may attest to omnivory, it cannot be excluded that potential producers were carnivorous and occasionally ingested plants, or accidentally swallowed plant material during feeding. The latter may involve predation or scavenging upon other herbivorous animals. The potential producers may have been animals that foraged in or near aquatic habitats, such as semi-aquatic archosaurs and/or temnospondyls. This is supported by the presence of ostracode and other aquatic arthropod remains, and fish scales within the coprolites, as well as by the presence of specific biomarkers such as phytanic and pristanic acids, which are characteristic constituents of fish oil. The preservation of such labile organic compounds as sterols, palmitin, stearin or levoglucosan attests for rapid, microbially-mediated mineralization of the faeces at very early stages of diagenesis. © 2015 Elsevier B.V.},

note = {45},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84957927944,

title = {Preliminary EMPA and XRD investigation on detrital minerals from the Štramberk Limestone in the Czech Republic},

author = { K. Szopa and T. Brachaniec and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84957927944&doi=10.1127%2fnjgpa%2f2015%2f0478&partnerID=40&md5=b0b7bc6ea0a088cb4bb6555986e8caca},

doi = {10.1127/njgpa/2015/0478},

issn = {00777749},

year  = {2015},

date = {2015-01-01},

journal = {Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen},

volume = {276},

number = {2},

pages = {201-212},

publisher = {Gebruder Borntraeger Verlagsbuchhandlung},

abstract = {In this paper, detrital minerals (light and heavy) from the Štramberk Limestone in the Czech Republic are described for the first time. The identified minerals are quartz, hematite, goethite, apatite, monazite, zircon, pyroxene, chlorite, kyanite(?) and zircon. Most are minerals from igneous rocks. CHIME age determinations on a monazite grain give Variscan ages. The main calculated age is 334±5 Ma. In addition, three further ages, i.e., 392 Ma, 359 Ma and 309 Ma are indicated. The rounded shapes of some mineral grains, and the sharp, cracked and/or automorphic character of others, provide rather ambiguous information on their transport history and source area(s). However, the mineral inventory and the determined age may point to the Bohemian Massif as the source. © 2015 E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, Germany.},

note = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84898058405,

title = {Palaeoenvironment of the Upper Cretaceous (Coniacian) concretion-bearing Lagerstätten from Poland},

author = { D. Trzęsiok and T. Krzykawski and R. Niedźwiedzki and K.R. Brom and P. Gorzelak and M.A. Salamon},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898058405&doi=10.1016%2fj.palaeo.2014.02.030&partnerID=40&md5=16fe55d41a0d1772216c80d36581139d},

doi = {10.1016/j.palaeo.2014.02.030},

issn = {00310182},

year  = {2014},

date = {2014-01-01},

journal = {Palaeogeography, Palaeoclimatology, Palaeoecology},

volume = {401},

pages = {154-165},

publisher = {Elsevier},

abstract = {Abundantly fossiliferous Upper Cretaceous sediments including decapod remains in the region of Stary Waliszów (Southern Poland) have been known for many years. To date, however, no study has dealt specifically with detailed palaeoenvironmental and palaeoecological reconstruction. The origin of these sediments is still uncertain and has been the source of considerable confusion and controversy, mainly due to the strong bioturbation and decalcification of these sediments. By using the fossil record, comparative taphonomy and geochemical analyses of concretions, we provide new insights into the paleoenvironment and the paleoecology of this unique Coniacian ecosystem.On the basis of ichno- and body fossil assemblages composed almost exclusively of benthic organisms such as decapods, molluscs and echinoderms, which are commonly disarticulated but rarely abraded, we suggest that the fossiliferous sediments in Stary Waliszów were formed in shallow, normal saline and well-oxygenated waters of the upper sublittoral zone with moderate sedimentation rate and low turbulence of waters. The presence of angular terrigenous clasts, well-preserved delicate land flora and the near absence of planktonic and nektonic fossils strongly imply proximity to the land. Recorded taxa inhabited a soft-bottom environment. Some organisms were fossilized inside siderite concretions. These concretions were formed within the sediment below the zone of active bioturbation during the early stage of diagenesis. Remarkable preservation of decapod remains is due to phosphatization, which replaced the cuticle. © 2014.},

note = {6},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84885054439,

title = {Indialite-rich paralava from a coalmine waste-dump, Sosnowiec, Poland},

author = { A. Gawęda and J. Janeczek and M. Kierepka and M. Kądziołko-Gaweł and T. Krzykawski},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885054439&doi=10.1127%2f0077-7757%2f2013%2f0238&partnerID=40&md5=48936a7de22d814ae483414c8de0fa40},

doi = {10.1127/0077-7757/2013/0238},

issn = {00777757},

year  = {2013},

date = {2013-01-01},

journal = {Neues Jahrbuch fur Mineralogie, Abhandlungen},

volume = {190},

number = {3},

pages = {237-251},

abstract = {High-temperature (>1000 °C) melting and pyrometamorphism of Carboniferous psammitic-pelitic rocks caused by spontaneous combustion of coal in a coal mine waste dump, Sosnowiec, Poland, produced paralava and clinker. Local differences in oxygen fugacity, melt density and viscosity led to the formation of two varieties of paralavas both with andesitic composition: reduced (dark grey) and oxidized (red). Abundant Fe-rich idiomorphic indialite (X Fe = 0.47-0.63) occurs in reduced paralava together with spinel, magnetite, hematite, rare phosphides, minor Fe-rich sapphirine and relic pyrite, monazite, xenotime, and zircon. Only few acicular crystals of indialite, skeletal spinel, and hematite occur in the oxidized paralava in addition to abundant partially resorbed quartz inherited from the sedimentary protolith. Partial melting of monazite under reducing conditions did not reset its U-Th-Pb ages despite mobilization of P and subsequent precipitation of secondary (Fe;Mn;Mg;Ca)-phosphides. Fractional crystallization combined with redox conditions was a major mechanism controlling mineral and chemical compositions of paralava. © 2013 E. Schweizerbart'sche Verlagsbuchhandlung.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-83655181256,

title = {Rusinovite, Ca10(Si2O7)3Cl 2: A new skarn mineral from the Upper Chegem caldera, Kabardino-Balkaria, Northern Caucasus, Russia},

author = { E.V. Galuskin and I.O. Galuskina and B. Lazic and T.M. Armbruster and A.E. Zadov and T. Krzykawski and K. Banasik and V.M. Gazeev and N.N. Pertsev},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-83655181256&doi=10.1127%2f0935-1221%2f2011%2f0023-2160&partnerID=40&md5=48d5815aea1bfd9c8e07dc00f712936d},

doi = {10.1127/0935-1221/2011/0023-2160},

issn = {09351221},

year  = {2011},

date = {2011-01-01},

journal = {European Journal of Mineralogy},

volume = {23},

number = {5},

pages = {837-844},

publisher = {Gebruder Borntraeger Verlagsbuchhandlung},

abstract = {Rusinovite, Ca10(Si2O7)3Cl 2, was discovered in an altered carbonate-silicate xenolith enclosed in ignimbrites of the Upper Chegem volcanic caldera. The mineral is named after Vladimir Leonidovich Rusinov (1935-2007), a Russian petrologist and expert in the field of thermodynamics of non-equilibriummineral systems. A synthetic analogue of rusinovite is also known. The new mineral has anODstructure of which only the average structure could be determined based on strong and sharp reflections recorded by single-crystal X-ray diffraction: space group Cmcm},

note = {16},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-57049086940,

title = {Determination of chemical composition of siderite in concretions by wavelength-dispersive X-ray spectrometry following selective dissolution},

author = { R. Sitko and B. Zawisza and T. Krzykawski and E. Malicka},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-57049086940&doi=10.1016%2fj.talanta.2008.08.019&partnerID=40&md5=9a1974c2a8eb864ff516234f51c84e2d},

doi = {10.1016/j.talanta.2008.08.019},

issn = {00399140},

year  = {2009},

date = {2009-01-01},

journal = {Talanta},

volume = {77},

number = {3},

pages = {1105-1110},

publisher = {Elsevier},

abstract = {Determination of chemical composition of siderite (Fe; Me)CO3 (where Me = Mg; Ca; Mn) present in siderite concretion is developed. An accurate and precise determination of Mg, Ca, Mn and Fe in siderite required complete separation of this mineral from other materials, e.g. calcite, quartz. For this purpose, selective dissolution in acetic acid (HAc) was applied. HAc concentration from 0.1 to 1 mol L-1 and extraction time from 0.5 to 8 h were investigated. In each step of investigation of selective dissolution, the X-ray diffraction measurements (XRD) of the residues was performed and also calcium (complexometric titration) and iron (XRF) in solution were determined. HAc of concentration 0.25 mol L-1 and extraction time of 2 h was adopted for siderite separation because in these conditions the siderite was not dissolved and, simultaneously, calcite was completely dissolved. In the next step, the nondissolved sample was digested in hydrochloric acid. The solution of the separated siderite was pipetted onto membrane filter and Mg, Ca, Mn and Fe were determined by wavelength-dispersive X-ray fluorescence (WDXRF) spectrometry. The calibration was performed using 11 certified reference materials of iron ores. Matrix effects were corrected using empirical coefficient model for intermediate-thickness samples. © 2008 Elsevier B.V. All rights reserved.},

note = {7},

keywords = {},

pubstate = {published},

tppubtype = {article}

}