Agglutinated foraminifera from neritic to bathyal facies in the Palaeogene of Spitsbergen and the Barents Sea
Late Palaeocene to Early Eocene foraminiferal assemblages have been analysed from an exploratory well (7119/7-1) drilled in the Tromsø Basin (southwestern Barents Sea) and from two onshore sections, Basilikaelva and Kovalskifjella, exposed in the Central Tertiary Basin of Spitsbergen. The assemblage...
Main Authors: | , , , |
---|---|
Other Authors: | , |
Format: | Report |
Language: | English |
Published: |
Grzybowski Foundation
2001
|
Subjects: | |
Online Access: | https://discovery.ucl.ac.uk/id/eprint/18884/1/18884.pdf https://discovery.ucl.ac.uk/id/eprint/18884/ |
id |
ftucl:oai:eprints.ucl.ac.uk.OAI2:18884 |
---|---|
record_format |
openpolar |
spelling |
ftucl:oai:eprints.ucl.ac.uk.OAI2:18884 2023-12-24T10:15:21+01:00 Agglutinated foraminifera from neritic to bathyal facies in the Palaeogene of Spitsbergen and the Barents Sea Nagy, J. Kaminski, M.A. Kuhnt, W. Bremer, M.A. Hart, M. Kaminski, M.A. Smart, C. 2001 application/pdf https://discovery.ucl.ac.uk/id/eprint/18884/1/18884.pdf https://discovery.ucl.ac.uk/id/eprint/18884/ eng eng Grzybowski Foundation https://discovery.ucl.ac.uk/id/eprint/18884/1/18884.pdf https://discovery.ucl.ac.uk/id/eprint/18884/ open In: Hart, M. and Kaminski, M.A. and Smart, C., (eds.) Proceedings of the Fifth International Workshop on Agglutinated Foraminifera: (Plymouth, U.K., September 6-16, 1997). (pp. pp. 333-361). Grzybowski Foundation: London, UK. (2001) Proceedings paper 2001 ftucl 2023-11-27T13:07:26Z Late Palaeocene to Early Eocene foraminiferal assemblages have been analysed from an exploratory well (7119/7-1) drilled in the Tromsø Basin (southwestern Barents Sea) and from two onshore sections, Basilikaelva and Kovalskifjella, exposed in the Central Tertiary Basin of Spitsbergen. The assemblages reveal marked differences in taxonomic composition and diversity, reflecting inner neritic to middle bathyal conditions. Within this depth range, four foraminiferal biofacies (FB) are distinguished: FB 1 occurs in the Kolthoffberget Member (of the Firkanten Formation, Late Palaeocene) sampled in the Basilikaelva section. The member consists of interbedded shales, siltstones and sandstones deposited in a transitional delta front - prodelta environment, according to current sedimentological interpretation. The foraminiferal assemblages are entirely agglutinated, show extremely low species diversities and strong dominance of Reticulophragmium arcticum followed by Labrospira aff. turbida. FB 2 is recognised in the Basilika Formation (Late Palaeocene) exposed in the Kovalskifjella section. The formation consists of silty claystones deposited in a prodelta shelf setting. The foraminiferal assemblages show an increased species diversity, and consist mainly of agglutinated taxa with a strongly subordinate calcareous component. The two most abundant species are R. arcticum and L. aff. turbida. Species of Verneuilinoides and Trochammina occur in significant numbers while tubular taxa are rare. FB 3 is found in the Lower Eocene clay interval composing the upper part of the Torsk Formation in well 7119/7-1. It contains entirely agglutinated assemblages with comparatively high diversities. The dominant species are Recurvoides aff. turbinatus and Budashevaella multicamerata, while Reticulophragmium amplectens is typical and common in these strata. Tubular forms referred to Rhizammina occur locally in significant quantities. The diversity and composition of the assemblages suggest an outer neritic to upper bathyal environment. FB ... Report Barents Sea Tromsø Spitsbergen University College London: UCL Discovery Barents Sea Basilika ENVELOPE(15.813,15.813,77.463,77.463) Basilikaelva ENVELOPE(15.723,15.723,77.509,77.509) Kolthoffberget ENVELOPE(15.423,15.423,77.604,77.604) Kovalskifjella ENVELOPE(17.204,17.204,77.063,77.063) Tromsø |
institution |
Open Polar |
collection |
University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
English |
description |
Late Palaeocene to Early Eocene foraminiferal assemblages have been analysed from an exploratory well (7119/7-1) drilled in the Tromsø Basin (southwestern Barents Sea) and from two onshore sections, Basilikaelva and Kovalskifjella, exposed in the Central Tertiary Basin of Spitsbergen. The assemblages reveal marked differences in taxonomic composition and diversity, reflecting inner neritic to middle bathyal conditions. Within this depth range, four foraminiferal biofacies (FB) are distinguished: FB 1 occurs in the Kolthoffberget Member (of the Firkanten Formation, Late Palaeocene) sampled in the Basilikaelva section. The member consists of interbedded shales, siltstones and sandstones deposited in a transitional delta front - prodelta environment, according to current sedimentological interpretation. The foraminiferal assemblages are entirely agglutinated, show extremely low species diversities and strong dominance of Reticulophragmium arcticum followed by Labrospira aff. turbida. FB 2 is recognised in the Basilika Formation (Late Palaeocene) exposed in the Kovalskifjella section. The formation consists of silty claystones deposited in a prodelta shelf setting. The foraminiferal assemblages show an increased species diversity, and consist mainly of agglutinated taxa with a strongly subordinate calcareous component. The two most abundant species are R. arcticum and L. aff. turbida. Species of Verneuilinoides and Trochammina occur in significant numbers while tubular taxa are rare. FB 3 is found in the Lower Eocene clay interval composing the upper part of the Torsk Formation in well 7119/7-1. It contains entirely agglutinated assemblages with comparatively high diversities. The dominant species are Recurvoides aff. turbinatus and Budashevaella multicamerata, while Reticulophragmium amplectens is typical and common in these strata. Tubular forms referred to Rhizammina occur locally in significant quantities. The diversity and composition of the assemblages suggest an outer neritic to upper bathyal environment. FB ... |
author2 |
Hart, M. Kaminski, M.A. Smart, C. |
format |
Report |
author |
Nagy, J. Kaminski, M.A. Kuhnt, W. Bremer, M.A. |
spellingShingle |
Nagy, J. Kaminski, M.A. Kuhnt, W. Bremer, M.A. Agglutinated foraminifera from neritic to bathyal facies in the Palaeogene of Spitsbergen and the Barents Sea |
author_facet |
Nagy, J. Kaminski, M.A. Kuhnt, W. Bremer, M.A. |
author_sort |
Nagy, J. |
title |
Agglutinated foraminifera from neritic to bathyal facies in the Palaeogene of Spitsbergen and the Barents Sea |
title_short |
Agglutinated foraminifera from neritic to bathyal facies in the Palaeogene of Spitsbergen and the Barents Sea |
title_full |
Agglutinated foraminifera from neritic to bathyal facies in the Palaeogene of Spitsbergen and the Barents Sea |
title_fullStr |
Agglutinated foraminifera from neritic to bathyal facies in the Palaeogene of Spitsbergen and the Barents Sea |
title_full_unstemmed |
Agglutinated foraminifera from neritic to bathyal facies in the Palaeogene of Spitsbergen and the Barents Sea |
title_sort |
agglutinated foraminifera from neritic to bathyal facies in the palaeogene of spitsbergen and the barents sea |
publisher |
Grzybowski Foundation |
publishDate |
2001 |
url |
https://discovery.ucl.ac.uk/id/eprint/18884/1/18884.pdf https://discovery.ucl.ac.uk/id/eprint/18884/ |
long_lat |
ENVELOPE(15.813,15.813,77.463,77.463) ENVELOPE(15.723,15.723,77.509,77.509) ENVELOPE(15.423,15.423,77.604,77.604) ENVELOPE(17.204,17.204,77.063,77.063) |
geographic |
Barents Sea Basilika Basilikaelva Kolthoffberget Kovalskifjella Tromsø |
geographic_facet |
Barents Sea Basilika Basilikaelva Kolthoffberget Kovalskifjella Tromsø |
genre |
Barents Sea Tromsø Spitsbergen |
genre_facet |
Barents Sea Tromsø Spitsbergen |
op_source |
In: Hart, M. and Kaminski, M.A. and Smart, C., (eds.) Proceedings of the Fifth International Workshop on Agglutinated Foraminifera: (Plymouth, U.K., September 6-16, 1997). (pp. pp. 333-361). Grzybowski Foundation: London, UK. (2001) |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/18884/1/18884.pdf https://discovery.ucl.ac.uk/id/eprint/18884/ |
op_rights |
open |
_version_ |
1786202120248098816 |