New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia
The present paper discusses foraminiferal assemblages and biozones established on the basis of studies of samples from ten borehole sequences of the Khanty-Mansiysk Horizon in the Samotlor area of the northern palaeobiogeographical district of western Siberia (Russia). In this region, middle and lat...
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ftneicon:oai:rour.neicon.ru:rour/276733 2023-05-15T15:05:13+02:00 New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia Podobina, Vera M. Томский государственный университет Геолого-географический факультет Кафедра палеонтологии и исторической геологии 2015 application/pdf https://doi.org/10.1515/logos-2015-0004 https://openrepository.ru/article?id=276733 eng eng vtls:000528692 doi:10.1515/logos-2015-0004 https://openrepository.ru/article?id=276733 Geologos. 2015. Vol. 21, № 1. P. 71-78 Западная Сибирь фораминиферы биостратиграфия статьи в журналах info:eu-repo/semantics/article 2015 ftneicon https://doi.org/10.1515/logos-2015-0004 2020-07-21T12:27:22Z The present paper discusses foraminiferal assemblages and biozones established on the basis of studies of samples from ten borehole sequences of the Khanty-Mansiysk Horizon in the Samotlor area of the northern palaeobiogeographical district of western Siberia (Russia). In this region, middle and late Albian foraminiferal assemblages were first distinguished in western Siberia. Levels from which these assemblages have been recovered, are here referred to the following foraminiferal zones, the Ammobaculites fragmentarius-Gaudryinopsis filiformis Zone (middle Albian) and the Ammotium braunsteini-Verneuilinoides borealis assanoviensis Zone (upper Albian). Zonal assemblages are dominated by representatives of the orders Ammodiscida, Textulariida and Ataxophragmiida. Species of the ataxophragmiid genera Verneuilinoides, Pseudoverneuilina and Gaudryinopsis are the most characteristic, inclusive of several key index forms. Foraminiferal tests consist of agglutinated quartz-silica, the wall microstructure being almost exclusively medium and coarse grained. In specific composition, the Albian assemblages from the Samotlor area are similar to those from Tran-suralia (Russia) and to the Canadian Province, which, together with West-Siberian Province, forms the Arctic palaeo-biogeographical realm. Article in Journal/Newspaper Arctic Foraminifera* khanty Siberia NORA (National aggregator of open repositories of Russian universities) Arctic Geologos 21 1 71 78 |
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Open Polar |
collection |
NORA (National aggregator of open repositories of Russian universities) |
op_collection_id |
ftneicon |
language |
English |
topic |
Западная Сибирь фораминиферы биостратиграфия |
spellingShingle |
Западная Сибирь фораминиферы биостратиграфия Podobina, Vera M. New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia |
topic_facet |
Западная Сибирь фораминиферы биостратиграфия |
description |
The present paper discusses foraminiferal assemblages and biozones established on the basis of studies of samples from ten borehole sequences of the Khanty-Mansiysk Horizon in the Samotlor area of the northern palaeobiogeographical district of western Siberia (Russia). In this region, middle and late Albian foraminiferal assemblages were first distinguished in western Siberia. Levels from which these assemblages have been recovered, are here referred to the following foraminiferal zones, the Ammobaculites fragmentarius-Gaudryinopsis filiformis Zone (middle Albian) and the Ammotium braunsteini-Verneuilinoides borealis assanoviensis Zone (upper Albian). Zonal assemblages are dominated by representatives of the orders Ammodiscida, Textulariida and Ataxophragmiida. Species of the ataxophragmiid genera Verneuilinoides, Pseudoverneuilina and Gaudryinopsis are the most characteristic, inclusive of several key index forms. Foraminiferal tests consist of agglutinated quartz-silica, the wall microstructure being almost exclusively medium and coarse grained. In specific composition, the Albian assemblages from the Samotlor area are similar to those from Tran-suralia (Russia) and to the Canadian Province, which, together with West-Siberian Province, forms the Arctic palaeo-biogeographical realm. |
author2 |
Томский государственный университет Геолого-географический факультет Кафедра палеонтологии и исторической геологии |
format |
Article in Journal/Newspaper |
author |
Podobina, Vera M. |
author_facet |
Podobina, Vera M. |
author_sort |
Podobina, Vera M. |
title |
New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia |
title_short |
New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia |
title_full |
New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia |
title_fullStr |
New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia |
title_full_unstemmed |
New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia |
title_sort |
new data on middle and late albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western siberia |
publishDate |
2015 |
url |
https://doi.org/10.1515/logos-2015-0004 https://openrepository.ru/article?id=276733 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Foraminifera* khanty Siberia |
genre_facet |
Arctic Foraminifera* khanty Siberia |
op_source |
Geologos. 2015. Vol. 21, № 1. P. 71-78 |
op_relation |
vtls:000528692 doi:10.1515/logos-2015-0004 https://openrepository.ru/article?id=276733 |
op_doi |
https://doi.org/10.1515/logos-2015-0004 |
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Geologos |
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21 |
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1 |
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71 |
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78 |
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1766336951959420928 |