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15 results on '"Stach, Paweł"'

8. A Study on the Formation Environment of the La Cumbre Amber Deposit, from Santiago Province, the Northwestern Part of the Dominican Republic

Author

Stach, Paweł, primary, Natkaniec-Nowak, Lucyna, additional, Wagner, Marian, additional, Dumańska-Słowik, Magdalena, additional, Mroczkowska-Szerszeń, Maja, additional, Wesełucha-Birczyńska, Aleksandra, additional, Drzewicz, Przemysław, additional, George, Carlos, additional, and Garcia, Edwin, additional

Published
2020
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9. An attempt to correlate the physical properties of fossil and subfossil resins with their age and geographic location

Author

Stach, Paweł, Martinkutė, Gintarė, Šinkūnas, Petras, Natkaniec-Nowak, Lucyna, Drzewicz, Przemysła, and Naglik, Beata

Subjects
stomatognathic system, technology, industry, and agriculture, microhardness, natural polymer, principal component analysis (PCA), resins
Abstract

Testing of the correlation between physical properties of natural resins such as microhardness, density and UV-excited fluorescence emission with their age, geological conditions, botanical and geographical origin and chemical structure was performed. These physical parameters, especially microhardness, are the result of resins fossilization processes like cross-linking and polymerizations of compounds present in the fossils. In addition, hardening of the resins may be also an effect of miscellaneous chemical processes induced by various environmental, biological and geological conditions. The principal component analysis found that the correlation of microhardness, density and fluorescence intensity with the resin age is quite low. The results suggest that variability of physical properties is caused by geographic location and locally occurring geological conditions. The physical properties of natural resins are most strongly correlated with chemical structure and geographic location. The resins with higher microhardness values come from marine environment depositions. The same trend was observed for resins affected by volcanic activity. Moreover, high fluorescence intensity was also observed for resins affected by above mentioned geological conditions. However, the density values of tested resins revealed the lowest correlation with their age, botanical source and geological history

Published
2019

14. "Górka Lubartowska-Niedźwiada" deposit (E Poland) as a potential source of glauconite raw material.

Author

NATKANIEC-NOWAK, LUCYNA, PIESTRZYŃSKI, ADAM, WAGNER, MARIAN, HEFLIK, WIESŁAW, NAGLIK, BEATA, PALUCH, JAN, PAŁASZ, KRZYSZTOF, MILOVSKÁ, STANISLAVA, and STACH, PAWEŁ

Subjects
RAW materials, PYRITES, GLAUCONITE, MARINE animals, LAMINS, LIGNITE, EOCENE Epoch
Abstract

Copyright of Mineral Resources Management / Gospodarka Surowcami Mineralnymi is the property of Mineral & Energy Economy Research Institute of the Polish Academy of Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2019
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15. Depositional environment of paleogen amber-bearing quartz-glauconite sands from Zdolbuniv (Rivne region, NW Ukraine): mineralogical and petrological evidences.

Author

NATKANIEC-NOWAK, LUCYNA, DUMAŃSKA-SŁOWIK, MAGDALENA, NAGLIK, BEATA, MELNYCHUK, VIKTOR, KRYNICKAYA, MARIYA B., SMOLIŃSKI, WOJCIECH, SIKORSKA-JAWOROWSKA, MAGDALENA, STACH, PAWEŁ, KUBICA, DOROTA, and ŁADOŃ, KAROLINA

Subjects
PALEOGENE, QUARTZ, GLAUCONITE, SAND, SEDIMENTS
Abstract

Copyright of Mineral Resources Management / Gospodarka Surowcami Mineralnymi is the property of Mineral & Energy Economy Research Institute of the Polish Academy of Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2017
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