Deformaciones transtensivas en la Dorsal Sur de Scotia (NE Península Antártica)

3 páginas, 3 figuras.-- Comunicación presentada en el IV Congreso Nacional de Geología, Alcalá de Henares, 1996. The South Scotia Ridge is studied by swath bathymetry, multichannel seismic and magnetometry profiles, obtained during the HESANT 92/93 cruise. The ridge is composed by thinned continenta...

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Bibliographic Details
Main Authors: Jabaloy, Antonio, Galindo Zaldívar, Jesús, Maldonado, Andrés, Sanz de Galdeano, Carlos
Format: Article in Journal/Newspaper
Language:Spanish
Published: Sociedad Geológica de España 1996
Subjects:
Online Access:http://hdl.handle.net/10261/29331
Description
Summary:3 páginas, 3 figuras.-- Comunicación presentada en el IV Congreso Nacional de Geología, Alcalá de Henares, 1996. The South Scotia Ridge is studied by swath bathymetry, multichannel seismic and magnetometry profiles, obtained during the HESANT 92/93 cruise. The ridge is composed by thinned continental crust fragments and to the north contacts by a sinistral transpressive faull wilh the oceanic crust of the Scotia Sea. Another fault located to the south bounds the ridge with the oceanic crust of the Powell Basin. The most significant active deformation lies in the axial depression of the ridge, within a band delineated by fault systems with WSW-ENE and SW-NE strikes, which separate the northern and southern blocls of the ridge. The northern block is being fragmented from the Antarctic Plate by a zone of transtensive faults, and is probably a independient crustal element. Peer reviewed