New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia
Abstract 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, middl...
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Walter de Gruyter GmbH
2015
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crdegruyter:10.1515/logos-2015-0004 2023-05-15T15:05:49+02:00 New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia Podobina, Vera M. 2015 http://dx.doi.org/10.1515/logos-2015-0004 http://content.sciendo.com/view/journals/logos/21/1/article-p71.xml https://www.sciendo.com/article/10.1515/logos-2015-0004 en eng Walter de Gruyter GmbH http://creativecommons.org/licenses/by-nc-nd/3.0/ CC-BY-NC-ND Geologos volume 21, issue 1, page 71-78 ISSN 2080-6574 General Earth and Planetary Sciences journal-article 2015 crdegruyter https://doi.org/10.1515/logos-2015-0004 2022-06-16T13:40:55Z Abstract 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 Transuralia (Russia) and to the Canadian Province, which, together with West-Siberian Province, forms the Arctic palaeobiogeographical realm Article in Journal/Newspaper Arctic Foraminifera* khanty Siberia De Gruyter (via Crossref) Arctic Geologos 21 1 71 78 |
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Open Polar |
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De Gruyter (via Crossref) |
op_collection_id |
crdegruyter |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Podobina, Vera M. New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia |
topic_facet |
General Earth and Planetary Sciences |
description |
Abstract 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 Transuralia (Russia) and to the Canadian Province, which, together with West-Siberian Province, forms the Arctic palaeobiogeographical realm |
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 |
publisher |
Walter de Gruyter GmbH |
publishDate |
2015 |
url |
http://dx.doi.org/10.1515/logos-2015-0004 http://content.sciendo.com/view/journals/logos/21/1/article-p71.xml https://www.sciendo.com/article/10.1515/logos-2015-0004 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Foraminifera* khanty Siberia |
genre_facet |
Arctic Foraminifera* khanty Siberia |
op_source |
Geologos volume 21, issue 1, page 71-78 ISSN 2080-6574 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/3.0/ |
op_rightsnorm |
CC-BY-NC-ND |
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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1766337461221326848 |