Stadials and interstadials during the Weichsel glackiation on Finnmarksvidda, northern Norway |
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| Authors: | LARS OLSEN |
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| Institution: | Geological Survey of Norway, P. 0. Box 3006 Lade, N-7002 Trondheim |
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| Abstract: | Till beds and waterlain sediments from at least 3 stadials and 2 interstadials during the Weichsel glaciation are recorded on Finnmarksvidda. The oldest, possibly Weichselian, ice-free period recorded on Finnmarksvidda is represented in one river section and is preliminary named the Vuolgamasjåkka thermomer. Its initiation is TL-dated to about 120 ka, which indicates a pre-Weichselian, possibly Eemian age. The interstadial which follows the subsequent and assumed oldest Weichsel stadial on Finnmarksvidda, the Eiravarri interstaeial, has previously been tentatively correlated lithostratigtrahically with the Peräpohojola interstadial ( sensu stricto ) in North Finland. The youngest interstadial, the Sargejåk internatiodial , is in this paper suggested to correlate with the Tärändö interstadial in North Sweden. The initial Weichselian ice movement across Finnmarksvidda is so far unknown, but locally N of Kautokeino in the W the initial (recorded) ice movement was directed towards NW-N. The regional ice movements for the two subsequent stadials on Finnmarksvidda were initially directed towards NE-ene and NNW, respectively. |
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