Upper Vendian in the east, northeast and north of East European Platform: Depositional processes and biotic evolution
Subject. Analysis of lithogeochemical proxies in the Upper Vendian mudstones reveals little if any variation in depositional environment for the Redkinian, Belomorian and Kotlinian regional stages in the east, northeast and north of East European Platform. The coeval macrobiota, in contrast, demonst...
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A.N. Zavaritsky Institute of Geology and Geochemistry
2018
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Online Access: | https://doi.org/10.24930/1681-9004-2018-18-4-520-542 https://doaj.org/article/c2fef3d47caf4fedb6697e480d0533a1 |
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ftdoajarticles:oai:doaj.org/article:c2fef3d47caf4fedb6697e480d0533a1 2023-05-15T18:43:55+02:00 Upper Vendian in the east, northeast and north of East European Platform: Depositional processes and biotic evolution Andrey V. Maslov Viktor N. Podkovyrov Dmitry V. Grazhdankin Anton V. Kolesnikov 2018-08-01T00:00:00Z https://doi.org/10.24930/1681-9004-2018-18-4-520-542 https://doaj.org/article/c2fef3d47caf4fedb6697e480d0533a1 EN RU eng rus A.N. Zavaritsky Institute of Geology and Geochemistry https://www.lithosphere.ru/jour/article/view/235 https://doaj.org/toc/1681-9004 https://doaj.org/toc/2500-302X 1681-9004 2500-302X doi:10.24930/1681-9004-2018-18-4-520-542 https://doaj.org/article/c2fef3d47caf4fedb6697e480d0533a1 Литосфера, Vol 0, Iss 4, Pp 520-542 (2018) верхний венд восточно-европейская платформа котлинский кризис литогеохимические особенности глинистых пород upper vendian east european platform kotlinian crisis mudstone lithogeochemistry Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 article 2018 ftdoajarticles https://doi.org/10.24930/1681-9004-2018-18-4-520-542 2022-12-31T01:56:20Z Subject. Analysis of lithogeochemical proxies in the Upper Vendian mudstones reveals little if any variation in depositional environment for the Redkinian, Belomorian and Kotlinian regional stages in the east, northeast and north of East European Platform. The coeval macrobiota, in contrast, demonstrates significant macroevolutionary and macroecological transformations. Thus, the Avalon-type ecological association consisting of frondomorphs and vendobionts evolved in low-energy inner shelf during the Redkinian, the Belomorian Stage is characterised by diversification of frondomorphs, migration of vendobionts into relatively high-energy depositional settings (shoreface and prodelta), and emergence of tribrachiomorphs and bilateralomorphs, where as the Kotlinian Stage is marked by a sharp decline in taxonomic diversity of soft-bodied organisms (the Kotlinian Crisis). We don’t know to what degree, if at all, depositional parameters as palaeogeodynamics, palaeoclimate, sediment composition, volcanic activity influenced the Ediacaran biota, but these agents were not responsible for the above mentioned biotic transformations. Materials and methods. We suggest that intrinsic factors such as ecological interactions could be the primary trigger of the Kotlinian crisis. This conclusion has been reached based on the study of composition of major rock-forming oxides, rare- and trace elements in fine-grained aluminosiliciclastic rocks (argillites, shales and silt-rich mudstones). Geological samples were collected in outcrops of the Asha Group of South Urals and Sylvitsa Group of Central Urals, as well as from the drill core of the Keltma-1 (Vychegda Trough) and Tuchkino-1000 (Southeast White Sea area) boreholes. We also used the data on chemical composition of mudstones from the Staraya Russa and Vasil’evsky Ostrov formations form the southern slope of the Baltic Shield. Results. With this information in hand we could assess, with varying degree of confidence, such parameters as a degree of recycling of the material supplied ... Article in Journal/Newspaper White Sea Directory of Open Access Journals: DOAJ Articles White Sea Staraya ENVELOPE(113.581,113.581,70.883,70.883) LITOSFERA 18 4 520 542 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Russian |
topic |
верхний венд восточно-европейская платформа котлинский кризис литогеохимические особенности глинистых пород upper vendian east european platform kotlinian crisis mudstone lithogeochemistry Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
spellingShingle |
верхний венд восточно-европейская платформа котлинский кризис литогеохимические особенности глинистых пород upper vendian east european platform kotlinian crisis mudstone lithogeochemistry Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 Andrey V. Maslov Viktor N. Podkovyrov Dmitry V. Grazhdankin Anton V. Kolesnikov Upper Vendian in the east, northeast and north of East European Platform: Depositional processes and biotic evolution |
topic_facet |
верхний венд восточно-европейская платформа котлинский кризис литогеохимические особенности глинистых пород upper vendian east european platform kotlinian crisis mudstone lithogeochemistry Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
description |
Subject. Analysis of lithogeochemical proxies in the Upper Vendian mudstones reveals little if any variation in depositional environment for the Redkinian, Belomorian and Kotlinian regional stages in the east, northeast and north of East European Platform. The coeval macrobiota, in contrast, demonstrates significant macroevolutionary and macroecological transformations. Thus, the Avalon-type ecological association consisting of frondomorphs and vendobionts evolved in low-energy inner shelf during the Redkinian, the Belomorian Stage is characterised by diversification of frondomorphs, migration of vendobionts into relatively high-energy depositional settings (shoreface and prodelta), and emergence of tribrachiomorphs and bilateralomorphs, where as the Kotlinian Stage is marked by a sharp decline in taxonomic diversity of soft-bodied organisms (the Kotlinian Crisis). We don’t know to what degree, if at all, depositional parameters as palaeogeodynamics, palaeoclimate, sediment composition, volcanic activity influenced the Ediacaran biota, but these agents were not responsible for the above mentioned biotic transformations. Materials and methods. We suggest that intrinsic factors such as ecological interactions could be the primary trigger of the Kotlinian crisis. This conclusion has been reached based on the study of composition of major rock-forming oxides, rare- and trace elements in fine-grained aluminosiliciclastic rocks (argillites, shales and silt-rich mudstones). Geological samples were collected in outcrops of the Asha Group of South Urals and Sylvitsa Group of Central Urals, as well as from the drill core of the Keltma-1 (Vychegda Trough) and Tuchkino-1000 (Southeast White Sea area) boreholes. We also used the data on chemical composition of mudstones from the Staraya Russa and Vasil’evsky Ostrov formations form the southern slope of the Baltic Shield. Results. With this information in hand we could assess, with varying degree of confidence, such parameters as a degree of recycling of the material supplied ... |
format |
Article in Journal/Newspaper |
author |
Andrey V. Maslov Viktor N. Podkovyrov Dmitry V. Grazhdankin Anton V. Kolesnikov |
author_facet |
Andrey V. Maslov Viktor N. Podkovyrov Dmitry V. Grazhdankin Anton V. Kolesnikov |
author_sort |
Andrey V. Maslov |
title |
Upper Vendian in the east, northeast and north of East European Platform: Depositional processes and biotic evolution |
title_short |
Upper Vendian in the east, northeast and north of East European Platform: Depositional processes and biotic evolution |
title_full |
Upper Vendian in the east, northeast and north of East European Platform: Depositional processes and biotic evolution |
title_fullStr |
Upper Vendian in the east, northeast and north of East European Platform: Depositional processes and biotic evolution |
title_full_unstemmed |
Upper Vendian in the east, northeast and north of East European Platform: Depositional processes and biotic evolution |
title_sort |
upper vendian in the east, northeast and north of east european platform: depositional processes and biotic evolution |
publisher |
A.N. Zavaritsky Institute of Geology and Geochemistry |
publishDate |
2018 |
url |
https://doi.org/10.24930/1681-9004-2018-18-4-520-542 https://doaj.org/article/c2fef3d47caf4fedb6697e480d0533a1 |
long_lat |
ENVELOPE(113.581,113.581,70.883,70.883) |
geographic |
White Sea Staraya |
geographic_facet |
White Sea Staraya |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
Литосфера, Vol 0, Iss 4, Pp 520-542 (2018) |
op_relation |
https://www.lithosphere.ru/jour/article/view/235 https://doaj.org/toc/1681-9004 https://doaj.org/toc/2500-302X 1681-9004 2500-302X doi:10.24930/1681-9004-2018-18-4-520-542 https://doaj.org/article/c2fef3d47caf4fedb6697e480d0533a1 |
op_doi |
https://doi.org/10.24930/1681-9004-2018-18-4-520-542 |
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