Journal
EARTH AND PLANETARY SCIENCE LETTERS
Volume 280, Issue 1-4, Pages 13-50Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.epsl.2008.12.005
Keywords
Africa-Eurasia plate boundary; Nubia; Iberia; Great Lisbon Earthquake; Gulf of Cadiz
Categories
Funding
- ESF EuroMargins Program [n. 01-LEC-EMA09F]
- EU Specific Programme Integrating and Strengthening the European Research Area [n. 037110]
- MEC in Spain and Portugal [SWIM REN2002-11234MAR, IMPULS,, REN 2003-05996MAR, EVENT CCL2006-12861-C02-02, MATESPRO, PDCFM/P/MAR/15264/1999]
- Natural Environment Research Council [soc010009] Funding Source: researchfish
- NERC [soc010009] Funding Source: UKRI
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The missing link in the plate boundary between Eurasia and Africa in the central Atlantic is presented and discussed. A set of almost linear and sub parallel dextral strike-slip faults, the SWIM 1 Faults, that form a narrow band of deformation over a length of 600 km coincident with a small circle centred on the pole of rotation of Africa with respect to Eurasia, was mapped using a new swath bathymetry compilation available in the area offshore SW Portugal. These faults connect the Gloria Fault to the Rif-Tell Fault Zone, two segments of the plate boundary between Africa and Eurasia. The SWIM faults cut across the Gulf of Cadiz, in the Atlantic Ocean, where the 1755 Great Lisbon earthquake, M similar to 8.5-8.7, and tsunami were generated, providing a new insight on its source location. (C) 2008 Elsevier B.V. All rights reserved.
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