KFU. Card publication. Loess-like siltstones from the urzhumian (middle permian) red beds of Kazan Volga Region, Russia

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FEDERAL UNIVERSITY

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LOESS-LIKE SILTSTONES FROM THE URZHUMIAN (MIDDLE PERMIAN) RED BEDS OF KAZAN VOLGA REGION, RUSSIA

Form of presentation

Articles in international journals and collections

Year of publication

2021

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Authors, employees of KFU

Batalin Georgiy Aleksandrovich, author

Gareev Bulat Irekovich, author

Gordeev Aleksandr Sergeevich, author

Kropotova Tatyana Vladimirovna, author

Muravev Fedor Aleksandrovich, author

Bibliographic description in the original language

Mouraviev, F.A., Kropotova, T.V., Gareev, B.I., Batalin, G.A., Gordeev, A.S. Loess-like siltstones from the urzhumian (middle permian) red beds of Kazan Volga Region, Russia //20th International Multidisciplinary Scientific Geoconference: Science and Technologies in Geology, Exploration and Mining, SGEM 2020. Vol. 2020-August, Is. 1.1, 2020, PP. 155-162

Annotation

20th International Multidisciplinary Scientific Geoconference: Science and Technologies in Geology, Exploration and Mining, SGEM 2020

Keywords

Aeolian, fluvial, loessite, Middle Permian, siltstone

The name of the journal

20th International Multidisciplinary Scientific Geoconference: Science and Technologies in Geology, Exploration and Mining, SGEM 2020

URL

https://www.sgem.org/index.php/elibrary?view=publication&task=show&id=6830

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=248727&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Batalin Georgiy Aleksandrovich	ru_RU
dc.contributor.author	Gareev Bulat Irekovich	ru_RU
dc.contributor.author	Gordeev Aleksandr Sergeevich	ru_RU
dc.contributor.author	Kropotova Tatyana Vladimirovna	ru_RU
dc.contributor.author	Muravev Fedor Aleksandrovich	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Mouraviev, F.A., Kropotova, T.V., Gareev, B.I., Batalin, G.A., Gordeev, A.S. Loess-like siltstones from the urzhumian (middle permian) red beds of Kazan Volga Region, Russia //20th International Multidisciplinary Scientific Geoconference: Science and Technologies in Geology, Exploration and Mining, SGEM 2020. Vol. 2020-August, Is. 1.1, 2020, PP. 155-162	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=248727&p_lang=2	ru_RU
dc.description.abstract	20th International Multidisciplinary Scientific Geoconference: Science and Technologies in Geology, Exploration and Mining, SGEM 2020	ru_RU
dc.description.abstract	Here we focused on the massive, non-pedogenic, loess-like siltstones, which are common within the fluvio-lacustrine Middle Permian red sediments of Kazan Volga region, to refine their depositional settings. Sedimentological, mineralogical and geochemical methods including field description, grain size analysis, optical microscopy, bulk geochemistry and X-ray diffraction, were used. Siltstone facies from the Urzhumian red beds of this region are represented by two types: laminated and massive, the last one is commonly modified by pedogenesis. Pedogenically non-altered massive siltstones often look like loessites and are considered by some researches as an aeolian sediments. These siltstones commonly occur in tabular beds of 1-1.2 m thick and underlain by paleosols and overlain by laminated siltstones or lacustrine carbonates. The matrix-supported internal structure, the poor grain sorting, a significant proportion of sand material, gley spots along with convolute microstructures, microlamination fragments and brecciation signs suggest the fluvial character of sedimentation of these siltstones. Lack of fossils and root traces, sheet-like tabular beds with non-erosional contacts and their structural features indicate the rapid sedimentation, most likely, by sheetfloods. Gradual transitions from the massive loess-like to pedogenically modified siltstones and then to developed paleosols can be traced in the Urzhumian succession on the different stratigraphic levels. The mineral composition of studied rocks and geochemical indices including chemical index of alteration (CIA) are similar to those of the underlying rocks, which may indicate the same provenance of siliciclastic material and/or its redeposition. Thus, the massive loess-like siltstones under study are interpreted as fluvial, floodplain or mudflat deposits, formed by rapid sedimentation of sandy-silty material.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Aeolian	ru_RU
dc.subject	fluvial	ru_RU
dc.subject	loessite	ru_RU
dc.subject	Middle Permian	ru_RU
dc.subject	siltstone	ru_RU
dc.title	Loess-like siltstones from the urzhumian (middle permian) red beds of Kazan Volga Region, Russia	ru_RU
dc.type	Articles in international journals and collections	ru_RU