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Transpressional deformation along the margin of Larsen Basin: new data from Pedersen Nunatak, Antarctic Peninsula

Published online by Cambridge University Press:  27 April 2004

R.A. Del Valle  and
H. Miller
R.A. Del Valle
Affiliation:
Instituto Antártico Argentino, Cerrito 1248, 1010 Buenos Aires, Argentina
H. Miller
Affiliation:
Institut für Allgemeine und Angewandte Geologie, Ludwig-Maximilians-Universität München, Luisenstrasse 37, D-80333 München, Germany
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Abstract

New structural data from the northern Antarctic Peninsula suggest that reverse faults and folds affecting the Pedersen Nunatak beds of the upper Mesozoic–Lower Cenozoic Larsen Basin succession were produced by transpressional forces acting parallel to the Weddell Sea coast of the Antarctic Peninsula during mid-Cretaceous compression of the Larsen Basin. At Pedersen Nunatak, Larsen Basin rocks are deformed into a series of synclines and anticlines that are cut by reverse faults.

Keywords

Antarctic PeninsulaLarsen Basinstructural geologytranspressional tectonicsWeddell Sea coast
Type
Papers—Earth Sciences and Glaciology
Information
Antarctic Science , Volume 13 , Issue 2 , June 2001 , pp. 158 - 166
Copyright
© Antarctic Science Ltd 2001

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