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Tectonophysics
Article . 2013 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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HAL-INSU
Article . 2013
Data sources: HAL-INSU
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
univOAK
Article . 2013
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GPS constraints on continental deformation in the Armenian region and Lesser Caucasus

Authors: A. Karakhanyan; P. Vernant; E. Doerflinger; A. Avagyan; H. Philip; R. Aslanyan; C. Champollion; +7 Authors

GPS constraints on continental deformation in the Armenian region and Lesser Caucasus

Abstract

Abstract 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 consistent with morphotectonic 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 agreement with 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 consistent with some independent 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.

Country
France
Keywords

[SDE.MCG] Environmental Sciences/Global Changes, Active tectonics, [PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], GPS, Earthquakes, [SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], Geodynamics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
65
Top 10%
Top 10%
Top 10%
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