The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Helena Alexandersson

Helena Alexanderson

Professor

Helena Alexandersson

A short-lived aeolian event during the Early Holocene in southeastern Norway

Author

  • Helena Alexanderson
  • Mona Henriksen

Summary, in English

The Starmoen dune field is part of a larger aeolian system in the Jomna and Glomma river valleys in southeastern Norway. It is believed to have formed just after the last deglaciation in the area, but no absolute ages have been available to support this. Here, we present a set of quartz optically stimulated luminescence (OSL) ages from the aeolian sediments and the underlying glacifluvial deposits. The results show that the main dune-building phase was a short-lived event similar to 10 ka ago, likely with a duration less than a few hundred years. This suggests a rapid stabilisation of an initially unstable environment in newly deglaciated terrain. A much younger event with limited and surficial reworking of sand is dated to 770 +/- 110 years ago, and the modern age of an active dune provide additional OSL quality control. Age overestimation is found for glacifluvial sediments, probably due to incomplete bleaching as indicated by e.g. scattered dose distributions from small aliquots. OSL measurements were conducted using coarse quartz grains (180-250 m), which show a dominance of a fast signal component. (C) 2015 Elsevier B.V. All rights reserved.

Department/s

  • Quaternary Sciences

Publishing year

2015

Language

English

Pages

175-180

Publication/Series

Quaternary Geochronology

Volume

30

Document type

Journal article

Publisher

Elsevier

Topic

  • Geology

Keywords

  • OSL
  • Eolian
  • Inland dune
  • Holocene
  • Norway

Status

Published

Project

  • Lund Luminescence Laboratory
  • Aeolian activity in Sweden: an unexplored environmental archive

Research group

  • Lund Luminescence Laboratory

ISBN/ISSN/Other

  • ISSN: 1871-1014