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Paleomagnetism in deep-sea core A179-15
Authors:Nils-Axel Mörner  Johan Lanser
Institution:Department of Geology, Stockholm University, Stockholm Sweden;Geological Institute, University of Amsterdam, Amsterdam The Netherlands
Abstract:Core A179-15 from the southern North Atlantic exhibits one of the best paleoclimatic records for the last 25,000 years. This is because it is a high-sedimentation rate core and because it has been analysed at 1 cm intervals by Ericson and Wollin. The core has been used by Mörner for global climatic correlations. The magnetic measurements show a fairly drastic declination excursion at 12,350 B.P., i.e. exactly at the same age as the end of the Gothenburg Magnetic “Flip”. Therefore, the declination excursion in core A179-15 probably represents the end of the Gothenburg Magnetic “Flip” and Excursion. The excursion and a lithologic boundary verify the chronology earlier applied by Mörner.
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