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Late Pleistocene and Early Holocene Climate of Ny-Alesund, Svalbard (Norway): A Study based on Biological Proxies


Affiliations
1 Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow – 226 007, India
2 Centre for Advance Studies in Geology, Lucknow University, Lucknow – 226 007, India
     

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Subsurface sediments of a 120 cm deep trench from Ny-Alesund, Svalbard, were analysed for pollenspores and other organic matter contents. This study is supported by two AMS 14C dates (27, 200 yrs BP and 8,762 yrs BP) at the bottom and topmost litho-unit of the trench, respectively. The pollen record provides an evidence of a warm interval at about 27,200 yr BP (Late Weichselian and MIS 3) and cooling episode around 8,762 yr BP. This is also supported by the amount and type of organic matter as well as sediment type and depositional history of the trench sediments.

Keywords

Biological Proxies, Trench Section, Late Weichselian, Ny-Alesund, Svalbard.
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  • Late Pleistocene and Early Holocene Climate of Ny-Alesund, Svalbard (Norway): A Study based on Biological Proxies

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Authors

Vartika Singh
Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow – 226 007, India
Anjum Farooqui
Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow – 226 007, India
Naresh C. Mehrotra
Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow – 226 007, India
Dhruv Sen Singh
Centre for Advance Studies in Geology, Lucknow University, Lucknow – 226 007, India
Rajni Tewari
Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow – 226 007, India
Neerja Jha
Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow – 226 007, India
Ratan Kar
Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow – 226 007, India

Abstract


Subsurface sediments of a 120 cm deep trench from Ny-Alesund, Svalbard, were analysed for pollenspores and other organic matter contents. This study is supported by two AMS 14C dates (27, 200 yrs BP and 8,762 yrs BP) at the bottom and topmost litho-unit of the trench, respectively. The pollen record provides an evidence of a warm interval at about 27,200 yr BP (Late Weichselian and MIS 3) and cooling episode around 8,762 yr BP. This is also supported by the amount and type of organic matter as well as sediment type and depositional history of the trench sediments.

Keywords


Biological Proxies, Trench Section, Late Weichselian, Ny-Alesund, Svalbard.

References