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<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>GPS constraints on continental deformation in the Armenian region and Lesser Caucasus</title>
<creator>Karakhanian, A.</creator>
<creator>Vernant, Philippe</creator>
<creator>DOERFLINGER, Erik</creator>
<creator>Avagyan, Ara</creator>
<creator>Philip, H.</creator>
<creator>Aslanyan, I. R.</creator>
<creator>Champollion, Cédric</creator>
<creator>Collard, Philippe</creator>
<creator>Peyret, Michel</creator>
<creator>Davtyan, Vahan</creator>
<creator>Calais, Eric</creator>
<creator>Masson, Frédéric</creator>
<contributor>GEORISK Scientific Research Company ; GEORISK</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Risques ; Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) - Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Natl Acad Sci Armenia ; Inst Geol Sci</contributor>
<contributor>Department of Earth and Atmospheric Sciences ; Purdue University [West Lafayette]</contributor>
<contributor>DGDA ; Institut de physique du globe de Strasbourg (IPGS) ; Centre National de la Recherche Scientifique (CNRS) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) - Institut national des sciences de l'Univers (INSU - CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0040-1951</source>
<source>EISSN: 1879-3266</source>
<source>Tectonophysics</source>
<publisher>Elsevier</publisher>
<identifier>hal-00812623</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00812623</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00812623</source>
<source>Tectonophysics, Elsevier, 2013, pp.39-45. 〈10.1016/j.tecto.2013.02.002〉</source>
<identifier>DOI : 10.1016/j.tecto.2013.02.002</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tecto.2013.02.002</relation>
<language>en</language>
<subject lang=en>Active tectonics</subject>
<subject lang=en>GPS</subject>
<subject lang=en>Geodynamics</subject>
<subject lang=en>Earthquakes</subject>
<subject>[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]</subject>
<subject>[PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>We present the 1998-2009 GPS-derived velocity field for the Armenia region based on a survey-mode observation network of 31 GPS sites.We combine our results with previous GPS studies of the region to better assess the deformation of the Lesser Caucasus and Kura basin region. The results show that the Kura basin and the Lesser Caucasus regions are two different blocks, and that the main fault (Pambak-Sevan-Sunik) between these two regions has a right-lateral slip rate of 2±1 mm/yr. This is consistentwithmorphotectonic estimates and suggests a fairly constant slip rate over the last 120-300 ka. The right-lateral slip rate on one of the southern branch of the Pambak-Sevan-Sunik fault is lower than 1 mm/yr and the good agreementwith a geologically estimated slip rate suggests a constant slip rate over the last 1.4 Myr. The Sardarapat and Akhurian faults experience some shortening. This shortening is consistentwith someindependent geological estimates and shows the Arabian push.However, NNW-SSE-orientated faults have an extensional fault normal component instead of the expected shortening due to the Arabia-Eurasia convergence. This substantial extensive strain, and the sharp azimuth change of the velocity vectors between the Arabia promontory and the Lesser Caucasus suggest that processes other than "extrusion", possibly related to old subduction or delamination, contribute to the geodynamics of the region.</description>
<date>2013-04</date>
</dc>
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