Abstract
A non‐uniform glacio‐isostatic uplift can result in differential uplift for different parts of a lake. If the lake outlet is situated in the area of the greatest rate of uplift, then remote parts of the lake will be continuously transgressed. Ancient lake levels can be estimated by dating transgressed peat at different depths in such lakes. Four lakes in southern Sweden have been investigated using this method and the course of the glacio‐isostatic uplift has been determined empirically. The investigation shows that the difference in uplift between the outlet and the sampling site can be expressed as an arctan function relating the difference in uplift over time to: half of the difference of the total uplift between the outlet and the sampling site, the time for the maximal rate of the uplift and a declining factor.
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