KFU. Card publication. Rhizoid limestone from the Urzhumian (Middle Permian) red beds of Tetyushi Volga region

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RHIZOID LIMESTONE FROM THE URZHUMIAN (MIDDLE PERMIAN) RED BEDS OF TETYUSHI VOLGA REGION

Form of presentation

Articles in international journals and collections

Year of publication

2022

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Authors, employees of KFU

Batalin Georgiy Aleksandrovich, author

Gareev Bulat Irekovich, author

Muravev Fedor Aleksandrovich, author

Silantev Vladimir Vladimirovich, author

Bibliographic description in the original language

Mouraviev, F.; Silantiev, V.; Gareev, B.; Batalin, G. Rhizoid limestone from the Urzhumian (Middle Permian) red beds of Tetyushi Volga region, Russia // 21st International Multidisciplinary Scientific GeoConference SGEM 2021, Vol. 1.1 - PP. 125-132.

Annotation

21st International Multidisciplinary Scientific GeoConference SGEM 2021

Keywords

Rhizoid limestone; Middle Permian; palustrine; lacustrine; microbial

The name of the journal

21st International Multidisciplinary Scientific GeoConference SGEM 2021

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

https://repository.kpfu.ru/eng/?p_id=264376&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	Muravev Fedor Aleksandrovich	ru_RU
dc.contributor.author	Silantev Vladimir Vladimirovich	ru_RU
dc.date.accessioned	2022-01-01T00:00:00Z	ru_RU
dc.date.available	2022-01-01T00:00:00Z	ru_RU
dc.date.issued	2022	ru_RU
dc.identifier.citation	Mouraviev, F.; Silantiev, V.; Gareev, B.; Batalin, G. Rhizoid limestone from the Urzhumian (Middle Permian) red beds of Tetyushi Volga region, Russia // 21st International Multidisciplinary Scientific GeoConference SGEM 2021, Vol. 1.1 - PP. 125-132.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=264376&p_lang=2	ru_RU
dc.description.abstract	21st International Multidisciplinary Scientific GeoConference SGEM 2021	ru_RU
dc.description.abstract	The separate layer of rhizoid limestone from Urzhumian red succession of Tetyushi Volga region was studied to clarify its depositional features. Field description, optical microscopy, bulk geochemistry, stable isotopes of carbon and oxygen analysis, scanning electron microscopy (SEM) were used. The limestone under study has a thickness of about 1 m, is penetrated by a network of thin root channels (rhizoid limestone), the upper part of the rhizoid limestone is overlain by thin-laminated leafy limestone (3-5 cm) (laminar limestone). Both limestones are crossed by desiccation cracks filled with dark gray massive limestone. Rhizoid limestone contains the lacustrine fauna of ostracods and bivalves, has a bioturbated micritic internal structure; the laminated limestone has a thin-layered microbially induced sedimentary structure (MISS) and ostracod shells; the massive limestone is characterized by a microbial-clotted structure (microbial limestone) and contains, along with the lake fauna, intraclasts of the host rhizoid limestone. Massive limestone filling the desiccation cracks shows a lighter isotopic composition and enrichment in biophilic elements (P2O5, SO3) compared to the host limestone. Microbial films with the development of coccoid and filamentous bacteriomorphs were identified in massive limestone using SEM. Thus, the rhizoid limestone is interpreted as a lacustrine carbonate sediment that underwent bioturbation by plant roots during the shallowing of lake. Laminar limestone is interpreted as palustrine (littoral) sediment. The complete drying of these sediments resulted in the formation of a network of cracks in them, which were filled with massive microbial limestone after the flooding of these sediments with lake waters. The lithostratigraphic significance of rhizoid limestones is discussed.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject		ru_RU
dc.title	Rhizoid limestone from the Urzhumian (Middle Permian) red beds of Tetyushi Volga region	ru_RU
dc.type	Articles in international journals and collections	ru_RU