Late Quaternary glacial development of the mid-Norwegian margin; 65 to 68°N

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doi: 10.1016/S0264-8172(03)00004-7
Author(s): Torbjorn Dahlgren, K. I.; Vorren, Tore O.; Laberg, Jan Sverre
Author Affiliation(s): Primary:
University of Tromso, Department of Geology, Tromso, Norway
Volume Title: Marine and Petroleum Geology
Source: Marine and Petroleum Geology, 19(9), p.1089-1113. Publisher: Elsevier, Oxford, United Kingdom. ISSN: 0264-8172
Note: In English. 66 refs.; illus., incl. 3 tables, sects., geol. sketch maps
Summary: We have studied the younger part of the large Plio-Pleistocene prograding wedge on the northern part of the mid-Norwegian margin, using high-resolution seismic data. The wedge is mainly composed of thick glacigenic debris flow packages interbedded with hemipelagic and contouritic sediments. Age constraints of the seismic stratigraphy obtained through correlation to ODP 644A show that the Fennoscandian Ice Sheet advanced to the shelf break during Marine Isotope Stages (MIS) 2 (ca. 15-22 ka BP), 6 (128-186 ka BP), 10 (339-362 ka BP), 12 (423-478 ka BP) and 14 (524-565 ka BP), and to the inner shelf during MIS 8 (245-303 ka BP). The stratal geometry and sedimentary pattern locally indicate rapid subsidence (up to ca. 1.2 m/ka) of the outer shelf and slope area since 350 ka BP. The subsidence is most likely a response to the rapid deposition of glacigenic sediments during the Plio-Pleistocene. It is inferred that sediment loading was an important factor behind the diapirism in the Vema Dome area. Abstract Copyright (2002) Elsevier, B.V.
Year of Publication: 2002
Research Program: ODP Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; Arctic Ocean; Cenozoic; Continental margin; Debris flows; Europe; Fennoscandian ice sheet; Geophysical methods; Geophysical surveys; Glacial geology; High-resolution methods; Leg 104; Mass movements; Norway; Norwegian Sea; ODP Site 644; Ocean Drilling Program; Quaternary; Scandinavia; Seismic methods; Sklinnadjupet Slide; Surveys; Upper Quaternary; Vema Dome; Voring Plateau; Western Europe
Coordinates: N650000 N680000 E0090000 E0010000
Record ID: 2005002624
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands