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<datestamp>2018-01-11</datestamp>
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<title lang=en>Slip rates and locking depth variation along central and easternmost segments of North Anatolian Fault</title>
<creator>Aktug, B.</creator>
<creator>Dogru, A.</creator>
<creator>Ozener, H.</creator>
<creator>Peyret, Michel</creator>
<contributor>Ankara University</contributor>
<contributor>Bogazici University [Istanbul]</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>
<description>International audience</description>
<source>ISSN: 0956-540X</source>
<source>EISSN: 1365-246X</source>
<source>Geophysical Journal International</source>
<publisher>Oxford University Press (OUP): Policy P - Oxford Open Option A</publisher>
<publisher>Oxford University Press (OUP)</publisher>
<identifier>hal-01218392</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01218392</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01218392</source>
<source>Geophysical Journal International, Oxford University Press (OUP), 2015, 202 (3), pp.2133-2149. 〈10.1093/gji/ggv274〉</source>
<identifier>DOI : 10.1093/gji/ggv274</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1093/gji/ggv274</relation>
<language>en</language>
<subject lang=en>Satellite geodesy</subject>
<subject lang=en>Space geodetic surveys</subject>
<subject lang=en>Continental neotectonics</subject>
<subject lang=en>Continental tectonics: strike-slip and transform</subject>
<subject lang=en>High strain deformation zones</subject>
<subject>[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>While the kinematics of Anatolia plate and the North Anatolian Fault System (NAFS) has been studied extensively, the slip rate and locking depth along the NAFS are usually assumed constant in the analyses due to the lack of sufficient data. This is also partly due to the reasonably good fit of Euler small circle and partly due to the lack of spatial resolution of observations to determine slip rates independently from locking depths. On the other hand, recent geodetic studies show a contrast for locking depth between Marmara and other parts of the NAFS, implying a non-uniform locking depth across the NAFS. In this study, we analyse new GPS data and homogenously combine available data sets covering the eastern part of the NAFS to form the most complete data set. In particular, we incorporate the first results of Turkish Real-Time Kinematic GPS Network (CORS-TR) into our data set. A detailed analysis of three profiles within the NAFS reveals an increase of locking depth in the middle profile to 19.1 ± 3.4 km from 11.9 ± 3.5 km in the easternmost profile while the slip rate is nearly constant (20–22 mm yr−1), which implies a variation of strain rate of ∼100 nanostrain yr−1. Assuming a constant locking depth throughout whole NAFS gives an average locking depth of 14.3 ± 1.7 km. Our best estimates of slip rates in block modelling which takes the variation of locking depths into account are in the range between 22.5 and 22.8 mm yr−1 over eastern part of the NAFS.</description>
<date>2015-09</date>
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