Shore-level changes in South Norway during the last 13,000 years, traced by biostratigraphical methods and radiometric datings

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Abstract
Hafsten, U. 1983. Shore-level changes in South Norway during the last 13,000 years, traced by biostratigraphical methods and radiometric datings. Norsk geogr. Tidsskr. Vol. 37, 63–79. Oslo. ISSN 0029-1951. This article presents the status as regards shoreline research in Norway at the end of UNESCO's International Geological Correlation Program (IGCP). Curves intended to reflect the general course of the shore-level displacement since the last glaciation are presented for 15 different regions along the coast of South Norway. The curves, which all have been converted to an equal time scale and also to an equal scale of depth, demonstrate clearly the great differences in Late and post-Weichselian shore-level changes from one region to another along the coast of South Norway. As a result of differential uplift the marine isobases generally become situated lower from the central part toward the outer coast regions. The highest marine levels recorded drop from 220m in the Oslo area, in early Preboreal time, and from less than 10m in Lista, during the Post-Weichselian Tapes transgression maximum. Information on ancient marine shore levels is also given for regions from which complete shore displacement curves have not yet been presented.