The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora Basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites
This study describes a new determination of the S and O isotope composition of Lower Permian (Kungurian) anhydrites from the Upper Pechora Basin, Cis-Ural region, Russia. δ34S values in sulphate facies vary from +13.7 to +15.1‰; and δ18O values range from +9.3 to +10.4‰. The values of d34S and d18O...
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Polish Geological Institute-National Research Institute
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ftjgq:oai:geojournals.pgi.gov.pl:article/25461 2024-09-15T18:29:12+00:00 The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora Basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites Galamay, Аnatolіy R. Meng, Fanwei Bukowski, Krzysztof Ni, Pei Shanina, Svetlana N. Ignatovich, Oleg O. 2016-09-05 application/pdf https://gq.pgi.gov.pl/article/view/25461 https://doi.org/10.7306/gq.1309 eng eng Polish Geological Institute-National Research Institute https://gq.pgi.gov.pl/article/view/25461/pdf_1305 10.7306/gq.v60i4.25461.g17529 https://gq.pgi.gov.pl/article/view/25461 doi:10.7306/gq.1309 Geological Quarterly; Vol. 60 No. 4 (2016); 990-999, doi:10.7306/gq.1309 Geological Quarterly; Tom 60 Nr 4 (2016); 990-999, doi:10.7306/gq.1309 1641-7291 10.7306/gq.v60i4 Upper Pechora Basin Permian isotopic composition anhydrite pyrite sulphate reduction info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2016 ftjgq https://doi.org/10.7306/gq.130910.7306/gq.v60i4 2024-07-30T03:29:08Z This study describes a new determination of the S and O isotope composition of Lower Permian (Kungurian) anhydrites from the Upper Pechora Basin, Cis-Ural region, Russia. δ34S values in sulphate facies vary from +13.7 to +15.1‰; and δ18O values range from +9.3 to +10.4‰. The values of d34S and d18O of anhydrite from halite facies varies from +12.6 to +15.0‰ and +7.5 to +10.9‰ respectively. The quantitative ratio of pyrite content from the water-insoluble residue (silty-sand fraction) is characterized by extremely low (<<1%) to high (4–5%) steep gradation values. The increased presence of pyrite indicates the influence of bacterial sulphate reduction. The sulphate reduction process was more intense, especially when evaporites were formed in mud. The narrow fluctuation range of sulphur and oxygen isotopes values of the measured anhydrite indicates low levels of fractionation. It was established that during the Permian, evolutionary changes in the content of sulphate ions in sea water correlate with the sulphur isotopic composition of marine evaporites Article in Journal/Newspaper Pechora Geological Quarterly |
institution |
Open Polar |
collection |
Geological Quarterly |
op_collection_id |
ftjgq |
language |
English |
topic |
Upper Pechora Basin Permian isotopic composition anhydrite pyrite sulphate reduction |
spellingShingle |
Upper Pechora Basin Permian isotopic composition anhydrite pyrite sulphate reduction Galamay, Аnatolіy R. Meng, Fanwei Bukowski, Krzysztof Ni, Pei Shanina, Svetlana N. Ignatovich, Oleg O. The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora Basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites |
topic_facet |
Upper Pechora Basin Permian isotopic composition anhydrite pyrite sulphate reduction |
description |
This study describes a new determination of the S and O isotope composition of Lower Permian (Kungurian) anhydrites from the Upper Pechora Basin, Cis-Ural region, Russia. δ34S values in sulphate facies vary from +13.7 to +15.1‰; and δ18O values range from +9.3 to +10.4‰. The values of d34S and d18O of anhydrite from halite facies varies from +12.6 to +15.0‰ and +7.5 to +10.9‰ respectively. The quantitative ratio of pyrite content from the water-insoluble residue (silty-sand fraction) is characterized by extremely low (<<1%) to high (4–5%) steep gradation values. The increased presence of pyrite indicates the influence of bacterial sulphate reduction. The sulphate reduction process was more intense, especially when evaporites were formed in mud. The narrow fluctuation range of sulphur and oxygen isotopes values of the measured anhydrite indicates low levels of fractionation. It was established that during the Permian, evolutionary changes in the content of sulphate ions in sea water correlate with the sulphur isotopic composition of marine evaporites |
format |
Article in Journal/Newspaper |
author |
Galamay, Аnatolіy R. Meng, Fanwei Bukowski, Krzysztof Ni, Pei Shanina, Svetlana N. Ignatovich, Oleg O. |
author_facet |
Galamay, Аnatolіy R. Meng, Fanwei Bukowski, Krzysztof Ni, Pei Shanina, Svetlana N. Ignatovich, Oleg O. |
author_sort |
Galamay, Аnatolіy R. |
title |
The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora Basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites |
title_short |
The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora Basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites |
title_full |
The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora Basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites |
title_fullStr |
The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora Basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites |
title_full_unstemmed |
The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora Basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites |
title_sort |
sulphur and oxygen isotopic composition of anhydrite from the upper pechora basin (russia): new data in the context of the evolution of the sulphur isotopic record of permian evaporites |
publisher |
Polish Geological Institute-National Research Institute |
publishDate |
2016 |
url |
https://gq.pgi.gov.pl/article/view/25461 https://doi.org/10.7306/gq.1309 |
genre |
Pechora |
genre_facet |
Pechora |
op_source |
Geological Quarterly; Vol. 60 No. 4 (2016); 990-999, doi:10.7306/gq.1309 Geological Quarterly; Tom 60 Nr 4 (2016); 990-999, doi:10.7306/gq.1309 1641-7291 10.7306/gq.v60i4 |
op_relation |
https://gq.pgi.gov.pl/article/view/25461/pdf_1305 10.7306/gq.v60i4.25461.g17529 https://gq.pgi.gov.pl/article/view/25461 doi:10.7306/gq.1309 |
op_doi |
https://doi.org/10.7306/gq.130910.7306/gq.v60i4 |
_version_ |
1810470616069832704 |