Open AccessDynamic sea‐level change during the last deglaciation of northern Iceland
Author(s) -
RUNDGREN MATS,
INGÓLFSSON ÓLAFUR,
BJÖRCK SVANTE,
JIANG HUI,
HAFLIDASON HAFLIDI
Publication year - 1997
Publication title -
boreas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.95
H-Index - 74
eISSN - 1502-3885
pISSN - 0300-9483
DOI - 10.1111/j.1502-3885.1997.tb00852.x
Subject(s) - deglaciation , geology , post glacial rebound , sea level , younger dryas , preboreal , marine transgression , oceanography , ice sheet , physical geography , climate change , holocene , climatology , paleontology , structural basin , geography
Rundgren, M., Ingólfsson, Ó., Björck, S., Jiang, H. & Haflioason, H. 1997 (September): Dynamic sea‐level change during the last deglaciation of northern Iceland. Boreas , Vol. 26, pp. 201–215. Oslo. ISSN 0300–9483. 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 11300 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 (10000–9850 BP), with a mean value of c . 15 cm 14 C 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 14 C yr ‐1 , corresponding to c . 3 cm cal. yr ‐1 , and relative sea level dropped below present‐day sea level at 9000 BP.