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Mats Rundgren

Mats Rundgren

Universitetslektor

Mats Rundgren

Dynamic sea-level change during the last deglaciation of northern Iceland

Författare

  • Mats Rundgren
  • Ólafur Ingólfsson
  • Svante Björck
  • Hui Jiang
  • Haflidi Haflidason

Summary, in English

A detailed reconstruction of deglacial relative sea-level changes at the northern coast of Iceland, based on the litho- and biostratigraphy of lake basins, indicates an overall fall in relative sea level of about 45 m between 11 300 and 9100 BP, corresponding to an isostatic rebound of 77 m. The overall regression was interrupted by two minor transgressions during the late Younger Dryas and in early Preboreal, and these were probably caused by a combination of expansions of local ice caps and readvances of the Icelandic inland ice-sheet margin. Maximum absolute uplift rates are recorded during the regressional phase between the two transgressions (10 000-9850 BP), with a mean value of c. 15 cm ·14C yr-1 or 11-12 cm ·cal. yr-1. Mean absolute uplift during the regressional phase following the second transgression (9700-9100 BP) was around 6 cm ·14C yr-1, corresponding to c. 3 cm · cal. yr-1, and relative sea level dropped below present-day sea level at 9000 BP.

Avdelning/ar

  • Kvartärgeologi

Publiceringsår

1997-01-01

Språk

Engelska

Sidor

201-215

Publikation/Tidskrift/Serie

Boreas

Volym

26

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

John Wiley and Sons

Ämne

  • Climate Research
  • Environmental Sciences
  • Geology

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0300-9483