Klinger, Y. and Avouac, J. P. and Karaki, N. Abou and Dorbath, L. and Bourles, D. and Reyss, J. L. (2000) Slip rate on the Dead Sea transform fault in northern Araba valley (Jordan). Geophysical Journal International, 142 (3). pp. 755-768. ISSN 0956-540X. http://resolver.caltech.edu/CaltechAUTHORS:20120912-085441127
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The Araba valley lies between the southern tip of the Dead Sea and the Gulf of Aqaba. This depression, blanketed with alluvial and lacustrine deposits, is cut along its entire length by the Dead Sea fault. In many places the fault is well defined by scarps, and evidence for left-lateral strike-slip faulting is abundant. The slip rate on the fault can be constrained from dated geomorphic features displaced by the fault. A large fan at the mouth of Wadi Dahal has been displaced by about 500 m since the bulk of the fanglomerates were deposited 77–140 kyr ago, as dated from cosmogenic isotope analysis (^(10)Be in chert) of pebbles collected on the fan surface and from the age of transgressive lacustrine sediments capping the fan. Holocene alluvial surfaces are also clearly offset. By correlation with similar surfaces along the Dead Sea lake margin, we propose a chronology for their emplacement. Taken together, our observations suggest an average slip rate over the Late Pleistocene of between 2 and 6 mm yr^(−1), with a preferred value of 4 mm yr^(−1). This slip rate is shown to be consistent with other constraints on the kinematics of the Arabian plate, assuming a rotation rate of about 0.396° Myr^(−1) around a pole at 31.1°N, 26.7°E relative to Africa.
|Additional Information:||© 2000 RAS. Accepted 2000 March 13. Received 2000 March 13; in original form 1999 April 6. Article first published online: 8 May 2002. We benefited from helpful comments by A. Agnon. We thank P. Tapponnier and A. Cisternas for fruitful discussions. This work benefited from constructive reviews by S. Marco, T. Rockwell and K. Sieh. The work of NAK is supported by the deanship of scientific research of the University of Jordan.|
|Subject Keywords:||Araba valley; Dead Sea fault; slip rate|
|Official Citation:||Klinger, Y., Avouac, J. P., Abou Karaki, N., Dorbath, L., Bourles, D. and Reyss, J. L. (2000), Slip rate on the Dead Sea transform fault in northern Araba valley (Jordan). Geophysical Journal International, 142: 755–768. doi: 10.1046/j.1365-246x.2000.00165.x|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||12 Sep 2012 16:11|
|Last Modified:||12 Sep 2012 16:11|
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