A 200 ka glaciation history from NW Svalbard

Forskningsoutput: KonferensbidragKonferensabstract

Abstract

In the Kongsfjorden area in NW Svalbard, there are several stratigraphic sites containing information on Quaternary environmental change, and which can be used to reconstruct local depositional conditions, regional events such as large-scale glaciations and relative sea-level change. Here, we present results from an investigation of one of these sites, the Kongsfjordhallet coastal sections, which are located on the northern shore of Kongsfjorden. The sedimentary units at Kongsfjordhallet represent five high relative sea level events, which imply preceding regional glaciations (Henriksen et al., this volume). Together with the record from nearby Leinstranda (Alexanderson et al. 2011) we can thus identify six, possibly seven, large glacial advances during the last 200 ka in the Kongsfjorden region. Two of these occurred during the Saalian and at least four during the Weichselian. The glaciations are constrained in time by the ages of the high relative sea level events to just prior to ~190 ka, ~130 ka, ~100-85 ka (possibly two events), ~60 ka, ~35 ka and ~14 ka. Our study encompasses only the upper 15 m of the coastal cliff sections at Kongsfjordhallet (corresponding to succession A of Houmark-Nielsen and Funder 1999), and there is an additional ~20 m of sediments below our Unit 1, which is promising for future studies aiming to go further back in time. ReferencesAlexanderson, H., Landvik, J. Y. and Ryen, H. T. 2011. Chronology and styles of glaciation in an inter-fjord setting, northwestern Svalbard. Boreas 40, 175-197.Henriksen, M., Alexanderson, H., Ryen, H.T., Landvik, J.Y. & Peterson, G. this volume: Non-glacial deposits key to the late Quaternary history of NW Svalbard.Houmark-Nielsen, M. and Funder, S. 1999. Pleistocene stratigraphy of Kongsfjordhallet, Spitsbergen, Svalbard. Polar Research 18, 39-49.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Norwegian University of Life Sciences
  • Sveriges Geologiska Undersökning, SGU
  • Norwegian Water Resources and Energy Directorate
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Geologi
Originalspråkengelska
Sidor6-6
StatusPublished - 2017
PublikationskategoriForskning
Peer review utfördNej
Evenemang5th PastGateways conference and workshop - Kristineberg, Sverige
Varaktighet: 2017 maj 222017 maj 26

Konferens

Konferens5th PastGateways conference and workshop
LandSverige
Period2017/05/222017/05/26

Relaterad forskningsoutput

Helena Alexanderson, Henriksen, M., Ryen, H. T., Landvik, J. Y. & Peterson, G., 2018 feb 16, I : arktos. 4, 3, 25 s.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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Related projects

Helena Alexanderson

2007/04/01 → …

Projekt: ForskningInternationellt samarbete, Undervisning

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