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Global Positioning System measurements of strain accumulation and slip transfer through the restraining bend along the Dead Sea fault system in Lebanon

Gomez, Francisco; Karam, Gebran; Khawlie, Mohamad; McClusky, Simon; Vernant, Philippe; Reilinger, Robert; Jaafar, Rani; Tabet, Charles; Khair, Kamal; Barazangi, Muawia

Description

Approximately 4 yr of campaign and continuous Global Positioning System (GPS) measurements across the Dead Sea fault system (DSFS) in Lebanon provide direct measurements of interseismic strain accumulation along a 200-km-long restraining bend in this continental transform fault. Late Cenozoic transpression within this restraining bend has maintained more than 3000 m of topography in the Mount Lebanon and Anti-Lebanon ranges. The GPS velocity field indicates 4-5 mm yr-1 of relative plate motion...[Show more]

dc.contributor.authorGomez, Francisco
dc.contributor.authorKaram, Gebran
dc.contributor.authorKhawlie, Mohamad
dc.contributor.authorMcClusky, Simon
dc.contributor.authorVernant, Philippe
dc.contributor.authorReilinger, Robert
dc.contributor.authorJaafar, Rani
dc.contributor.authorTabet, Charles
dc.contributor.authorKhair, Kamal
dc.contributor.authorBarazangi, Muawia
dc.date.accessioned2015-12-08T22:40:15Z
dc.identifier.issn0956-540X
dc.identifier.urihttp://hdl.handle.net/1885/36424
dc.description.abstractApproximately 4 yr of campaign and continuous Global Positioning System (GPS) measurements across the Dead Sea fault system (DSFS) in Lebanon provide direct measurements of interseismic strain accumulation along a 200-km-long restraining bend in this continental transform fault. Late Cenozoic transpression within this restraining bend has maintained more than 3000 m of topography in the Mount Lebanon and Anti-Lebanon ranges. The GPS velocity field indicates 4-5 mm yr-1 of relative plate motion is transferred through the restraining bend to the northern continuation of the DSFS in northwestern Syria. Near-field GPS velocities are generally parallel to the major, left-lateral strike-slip faults, suggesting that much of the expected convergence across the restraining bend is likely accommodated by different structures beyond the aperture of the GPS network (e.g. offshore Lebanon and, possibly, the Palmyride fold belt in SW Syria). Hence, these geodetic results suggest a partitioning of crustal deformation involving strike-slip displacements in the interior of the restraining bend, and crustal shortening in the outer part of the restraining bend. Within the uncertainties, the GPS-based rates of fault slip compare well with Holocene-averaged estimates of slip along the two principal strike-slip faults: the Yammouneh and Serghaya faults. Of these two faults, more slip occurs on the Yammouneh fault, which constitutes the primary plate boundary structure between the Arabia and Sinai plates. Hence, the Yammouneh fault is the structural linkage that transfers slip to the northern part of the transform in northwestern Syria. From the perspective of the regional earthquake hazard, the Yammouneh fault is presently locked and accumulating interseismic strain.
dc.publisherBlackwell Publishing Ltd
dc.sourceGeophysical Journal International
dc.subjectKeywords: crustal deformation; crustal shortening; displacement; geodesy; GPS; measurement method; neotectonics; plate boundary; plate motion; seismic tomography; strain; strike-slip fault; transform fault; transpression; Asia; Dead Sea; Eurasia; Lebanon; Middle Ea Crustal deformation; DeadSea fault system; Fault motion; Global Positioning System (GPS); Neotectonics; Transform faults
dc.titleGlobal Positioning System measurements of strain accumulation and slip transfer through the restraining bend along the Dead Sea fault system in Lebanon
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume168
dc.date.issued2007
local.identifier.absfor040407 - Seismology and Seismic Exploration
local.identifier.ariespublicationu4278572xPUB136
local.type.statusPublished Version
local.contributor.affiliationGomez, Francisco, University of Missouri
local.contributor.affiliationKaram, Gebran, Lebanese American University
local.contributor.affiliationKhawlie, Mohamad, Lebanese National Centre for Remote Sensing
local.contributor.affiliationMcClusky, Simon, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationVernant, Philippe, Massachusetts Institute of Technology
local.contributor.affiliationReilinger, Robert, Massachusetts Institute of Technology
local.contributor.affiliationJaafar, Rani, University of Missouri
local.contributor.affiliationTabet, Charles, Lebanese National Council for Scientific Research
local.contributor.affiliationKhair, Kamal, Hasbaya
local.contributor.affiliationBarazangi, Muawia, Cornell University
local.description.embargo2037-12-31
local.bibliographicCitation.startpage1021
local.bibliographicCitation.lastpage1028
local.identifier.doi10.1111/j.1365-246X.2006.03328.x
local.identifier.absseo970104 - Expanding Knowledge in the Earth Sciences
dc.date.updated2015-12-08T10:22:18Z
local.identifier.scopusID2-s2.0-33847793693
CollectionsANU Research Publications

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