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1 Institute for the Study of the Continents, Cornell University, Snee Hall, Ithaca, New York 14853, USA (e-mail: fgomez{at}geology.cornell.edu)
2 Institut de Physique du Globe, Strasbourg, France
3 Department of Geology, Damascus University, Damascus, Syria
4 Syrian Atomic Energy Commission, Damascus, Syria
5 National Council for Scientific Research, Beirut, Lebanon
6 National Center for Remote Sensing, Beirut, Lebanon
7 General Company for Engineering and Consulting, Damascus, Syria
8 Department of Geology, American University of Beirut, Lebanon
Scientific editing by Richard England.
Examination of the Serghaya fault, a branch of the Dead Sea Fault System in western Syria and eastern Lebanon, documents Late Quaternary and Recent left-lateral fault movements including the probable remnant of a historic coseismic surface rupture. Carbon-14 dating and the presence of fault-scarp free faces in soft, late Pleistocene lake deposits suggest coseismic slip during the past two or three centuries, possibly corresponding with one of the well-documented earthquakes of 1705 or 1759. With an estimated Holocene slip rate of 12 mm a1, the Serghaya Fault accommodates a significant part of the active deformation along the ArabianAfrican plate boundary. These results suggest that multiple active fault branches are involved in the transfer of strain through the Lebanese restraining bend.
Keywords: Dead Sea Transform, Syria, Lebanon, neotectonics, earthquakes.
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