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

• Published in: Antarctic Science
• Main Authors: Valle, R.A. Del, Miller, H.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 2001
• Subjects: Geology; Ecology, Evolution, Behavior and Systematics; Oceanography; Antarctic; The Antarctic; Antarctic Peninsula; Weddell Sea; Weddell; Pedersen; Larsen Basin; Pedersen nunatak; Antarc*; Antarctic Science
• Online Access: http://dx.doi.org/10.1017/s0954102001000244; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102001000244

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.