Flexure across a continent–ocean fracture zone: the northern Falkland/Malvinas Plateau, South Atlantic |
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| Authors: | J M Lorenzo P Wessel |
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| Institution: | (1) Department of Geology and Geophysics, Louisiana State University, Baton Rouge, LA 70803-4101, USA, US;(2) School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822, USA, US |
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| Abstract: | Bathymetry, satellite-derived gravity, and interpreted seismic reflection data across the northern Falkland/Malvinas Plateau
fossil continent–ocean transform rim may record the degree of mechanical coupling across the boundary after ridge–transform
intersection time. The rim comprises a broad microcontinental block in the east and a continental marginal fracture ridge
50–100 km wide elsewhere. Free-air gravity anomalies tentatively suggest that the fracture ridge is locked against oceanic
elastic lithosphere both to the north (Argentine Basin) and south (Central Falkland Basin).
Received: 18 January 1996 / Revision received: 25 March 1995 |
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