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Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west Svalbard

Chatterjee, Debolina ; Ghosh, Anupam and Alexanderson, Helena LU (2023) In Polar Research 42.
Abstract

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 –... (More)

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 availabil-ity in the Kongsfjorden region during the five deglaciation events. The foramin-iferal data are also compared with foraminiferal records from other sites in Svalbard and the adjacent Arctic Ocean.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Arctic, Benthic foraminifera, glacial–interglacial cycle, Kongsfjorden, palaeoenvironment, Spitsbergen
in
Polar Research
volume
42
article number
7857
publisher
Wiley-Blackwell
external identifiers
  • scopus:85174292275
ISSN
0800-0395
DOI
10.33265/polar.v42.7857
project
Glacial history of Svalbard
language
English
LU publication?
yes
additional info
Publisher Copyright: Polar Research 2023. © 2023 D. Chatterjee et al.
id
b095a7a2-1128-4ca0-8106-35f7444ded9a
date added to LUP
2023-12-18 11:41:28
date last changed
2024-01-31 11:37:26
@article{b095a7a2-1128-4ca0-8106-35f7444ded9a,
  abstract     = {{<p>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 (&gt;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 availabil-ity in the Kongsfjorden region during the five deglaciation events. The foramin-iferal data are also compared with foraminiferal records from other sites in Svalbard and the adjacent Arctic Ocean.</p>}},
  author       = {{Chatterjee, Debolina and Ghosh, Anupam and Alexanderson, Helena}},
  issn         = {{0800-0395}},
  keywords     = {{Arctic; Benthic foraminifera; glacial–interglacial cycle; Kongsfjorden; palaeoenvironment; Spitsbergen}},
  language     = {{eng}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Polar Research}},
  title        = {{Benthic foraminiferal investigations in Middle to Late Quaternary sections of Kongsfjordhallet, north-west Svalbard}},
  url          = {{http://dx.doi.org/10.33265/polar.v42.7857}},
  doi          = {{10.33265/polar.v42.7857}},
  volume       = {{42}},
  year         = {{2023}},
}