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Geological Society, London, Special Publications; 1990; v. 53; p. 269-288;
DOI: 10.1144/GSL.SP.1990.053.01.15
© 1990 Geological Society of London

Geometry and genesis of the glacigenic sediments in the southern Barents Sea

Tore O. Vorren, Erland Lebesbye & Kjell B. Larsen

Institute of Biology and Geology, University of Tromsø, N-9000 Tromsø, Norway

The glacigenic sequence on the continental shelf and shelf break in the Barents Sea has been mapped seismostratigraphically. Four and six major units have been distinguished on the outer and inner shelf, respectively. The outer shelf units increase in thickness towards the shelf break, except for the youngest one. The geometry of these units is determined partly by the morphology of the basement (infill), but to a larger extent by postdepositional erosion. The older, inner shelf units are located in a coast parallel trough. The two youngest units also have a blanketing character. The geometry of the younger units gives indications of source areas, as well as of ice movement direction of subsequent eroding ice sheets. The palaeoenvironment and palaeogeography during the mid-late Weichselian in the Barents Sea is reconstructed.





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