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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ftdoajarticles:oai:doaj.org/article:7b2a6baa316440c2884dc4edef8f90c9 2023-05-15T15:05:27+02:00 New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia Podobina Vera M. 2015-03-01T00:00:00Z https://doi.org/10.1515/logos-2015-0004 https://doaj.org/article/7b2a6baa316440c2884dc4edef8f90c9 EN eng Sciendo https://doi.org/10.1515/logos-2015-0004 https://doaj.org/toc/2080-6574 2080-6574 doi:10.1515/logos-2015-0004 https://doaj.org/article/7b2a6baa316440c2884dc4edef8f90c9 Geologos, Vol 21, Iss 1, Pp 71-78 (2015) foraminifera biostratigraphy albian west-siberian province Geology QE1-996.5 article 2015 ftdoajarticles https://doi.org/10.1515/logos-2015-0004 2022-12-31T07:40:16Z 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 Directory of Open Access Journals: DOAJ Articles Arctic Geologos 21 1 71 78 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
foraminifera biostratigraphy albian west-siberian province Geology QE1-996.5 |
spellingShingle |
foraminifera biostratigraphy albian west-siberian province Geology QE1-996.5 Podobina Vera M. New data on middle and late Albian foraminifera and biostratigraphy of the northern palaeobiogeographical district of western Siberia |
topic_facet |
foraminifera biostratigraphy albian west-siberian province Geology QE1-996.5 |
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 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 |
Sciendo |
publishDate |
2015 |
url |
https://doi.org/10.1515/logos-2015-0004 https://doaj.org/article/7b2a6baa316440c2884dc4edef8f90c9 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Foraminifera* khanty Siberia |
genre_facet |
Arctic Foraminifera* khanty Siberia |
op_source |
Geologos, Vol 21, Iss 1, Pp 71-78 (2015) |
op_relation |
https://doi.org/10.1515/logos-2015-0004 https://doaj.org/toc/2080-6574 2080-6574 doi:10.1515/logos-2015-0004 https://doaj.org/article/7b2a6baa316440c2884dc4edef8f90c9 |
op_doi |
https://doi.org/10.1515/logos-2015-0004 |
container_title |
Geologos |
container_volume |
21 |
container_issue |
1 |
container_start_page |
71 |
op_container_end_page |
78 |
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1766337154504458240 |