Lateglacial and Holocene terrestrial and marine proxies reflecting climate changes in the Malangen fjord area, Norway, northeast North Atlantic |
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| Authors: | ALLA SHARAPOVA MORTEN HALD KATRINE HUSUM CHRISTIN JENSEN |
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| Institution: | Department of Geology, St. Petersburg University, Universitetskaya nab. 7/9, St. Petersburg 199034, Russia;;Department of Geology, University of Tromsø, NO-9037 Tromsø, Norway;;Department of Geology, University of Tromsø, NO-9037 Tromsø, Norway;;Department of Biology, University of Tromsø, NO-9037 Tromsø, Norway |
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| Abstract: | A high-resolution Younger Dryas–late Holocene record of climate and environment from the Malangen fjord has been established on the basis of two marine sediment cores. Five pollen-spore assemblage zones have been defined covering the period c . 11 500 cal. yr BP (10 200 14C yr BP) to c . 1600 cal. yr BP (1600 14C yr BP) with a hiatus of c . 2000 cal. years between c . 10 200 and 8100 cal. yr BP (9000 and 7300 14C yr BP). The Holocene vegetation development from pioneer vegetation to forest development, identified in the marine pollen record, correlates well with pollen records from terrestrial sections of northern Norway. The marine pollen record was also correlated directly with marine proxy records of the bottom water temperature investigated in the same sediment cores. Correlation between the marine and terrestrial proxies suggests that changes in the influx of warm Atlantic Water to the fjord led to an instant change in the vegetation of the surrounding land area. The results thus support a strong link between marine and atmospheric mean climatic states in the North Atlantic region throughout the Holocene. |
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