Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west Svalbard
Stratigraphic sites in north-west Svalbard record at least six significant glacial advances in the last 200 Ky, and sediments deposited under locally high relative sea level during intervening interstadials or interglacials contain abundant benthic foraminifera. We present a biostratigraphic record...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Norwegian Polar Institute
2023-09-01
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| Series: | Polar Research |
| Subjects: | |
| Online Access: | https://polarresearch.net/index.php/polar/article/view/7857/16252 |
| _version_ | 1797665142974971904 |
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| author | Debolina Chatterjee Anupam Ghosh Helena Alexanderson |
| author_facet | Debolina Chatterjee Anupam Ghosh Helena Alexanderson |
| author_sort | Debolina Chatterjee |
| collection | DOAJ |
| description | Stratigraphic sites in north-west Svalbard record at least six significant glacial advances in the last 200 Ky, and sediments deposited under locally high relative sea level during intervening interstadials or interglacials contain abundant benthic foraminifera. We present a biostratigraphic record from the Kongsfjordhallet site in the Kongsfjorden area that covers five high relative sea-level events and stretches back to the Middle Pleistocene (>195 Kya). Five foraminiferal assemblages have been identified: (1) Cassidulina reniforme – Elphidium clavatum — Islandiella helenae; (2) Cassidulina neoteretis – Cassidulina reniforme; (3) Cassidulina reniforme – Cibicides lobatulus – Cassidulina neoteretis; (4) Cibicides lobatulus – Cassidulina reniforme – Elphidium clavatum; and (5) Cassidulina reniforme – Elphidium clavatum assemblages. The assemblages suggest a distal glaciomarine environment with variable influence of seasonal sea ice and nutrient availability in the Kongsfjorden region during the five deglaciation events. The foraminiferal data are also compared with foraminiferal records from other sites in Svalbard and the adjacent Arctic Ocean. |
| first_indexed | 2024-03-11T19:39:42Z |
| format | Article |
| id | doaj.art-85baa8cafd2643b8aebc45b41d01d744 |
| institution | Directory Open Access Journal |
| issn | 0800-0395 1751-8369 |
| language | English |
| last_indexed | 2024-03-11T19:39:42Z |
| publishDate | 2023-09-01 |
| publisher | Norwegian Polar Institute |
| record_format | Article |
| series | Polar Research |
| spelling | doaj.art-85baa8cafd2643b8aebc45b41d01d7442023-10-06T13:04:21ZengNorwegian Polar InstitutePolar Research0800-03951751-83692023-09-014211710.33265/polar.v42.78577857Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west SvalbardDebolina Chatterjee0Anupam Ghosh1Helena Alexanderson2Department of Geological Sciences, Jadavpur University, Kolkata, IndiaDepartment of Geological Sciences, Jadavpur University, Kolkata, IndiaDepartment of Geology, Lund University, Lund, SwedenStratigraphic sites in north-west Svalbard record at least six significant glacial advances in the last 200 Ky, and sediments deposited under locally high relative sea level during intervening interstadials or interglacials contain abundant benthic foraminifera. We present a biostratigraphic record from the Kongsfjordhallet site in the Kongsfjorden area that covers five high relative sea-level events and stretches back to the Middle Pleistocene (>195 Kya). Five foraminiferal assemblages have been identified: (1) Cassidulina reniforme – Elphidium clavatum — Islandiella helenae; (2) Cassidulina neoteretis – Cassidulina reniforme; (3) Cassidulina reniforme – Cibicides lobatulus – Cassidulina neoteretis; (4) Cibicides lobatulus – Cassidulina reniforme – Elphidium clavatum; and (5) Cassidulina reniforme – Elphidium clavatum assemblages. The assemblages suggest a distal glaciomarine environment with variable influence of seasonal sea ice and nutrient availability in the Kongsfjorden region during the five deglaciation events. The foraminiferal data are also compared with foraminiferal records from other sites in Svalbard and the adjacent Arctic Ocean.https://polarresearch.net/index.php/polar/article/view/7857/16252benthic foraminiferaglacial–interglacial cyclepalaeoenvironmentkongsfjordenspitsbergenarctic |
| spellingShingle | Debolina Chatterjee Anupam Ghosh Helena Alexanderson Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west Svalbard Polar Research benthic foraminifera glacial–interglacial cycle palaeoenvironment kongsfjorden spitsbergen arctic |
| title | Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west Svalbard |
| title_full | Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west Svalbard |
| title_fullStr | Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west Svalbard |
| title_full_unstemmed | Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west Svalbard |
| title_short | Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west Svalbard |
| title_sort | benthic foraminiferal investigations in middle to late quaternary sections of kongsfjordhallet north west svalbard |
| topic | benthic foraminifera glacial–interglacial cycle palaeoenvironment kongsfjorden spitsbergen arctic |
| url | https://polarresearch.net/index.php/polar/article/view/7857/16252 |
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