FN Archimer Export Format
PT J
TI Modelling tectonic deformation along the North-Anatolian Fault in the Sea of Marmara
BT 
AF Bulkan, S.
   Vannucchi, P.
   Gasperini, L.
   Polonia, A.
   Cavozzi, C.
AS 1:1;2:2;3:3;4:3;5:4;
FF 1:;2:;3:;4:;5:;
C1 Earth Sciences Department, Royal Holloway, University of London, Egham, UK
   Dipartimento di Scienze della Terra, Università degli Studi di Firenze, Via La Pira, 4, Firenze, Italy
   Istituto di Scienze Marine-Consiglio Nazionale delle Ricerche (ISMAR), IT-40129 Bologna, Italy
   NEXT – Natural and Experimental Tectonics research group, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Italy
C2 UNIV LONDON, UK
   UNIV FIRENZE, ITALY
   CNR, ITALY
   UNIV PARMA, ITALY
IF 3.933
TC 3
UR https://archimer.ifremer.fr/doc/00648/75994/76897.pdf
LA English
DT Article
CR SEISMARMARA
BO Le Nadir
DE ;Analogue modelling;Pull-apart basins;Stress transfer;Fault orientation;Cinarcik basin;Sea of Marmara
AB Using analogue techniques, we attempted to model the complex tectonic deformation pattern observed along the North-Anatolian Fault in the Sea of Marmara from morpho-bathymetry and seismic reflection images. In particular this paper focuses on the so-called Cinarcik segment of the fault connecting the eastern Izmit segment, which entirely ruptured during the Mw 7.4, 1999 earthquake, to the western segment of the Central High. The Çınarcık segment, potentially loaded after the Izmit earthquake, is expected to rupture during an earthquake occurring in the near future, possibly the next decades, with a high potential to affect the Istanbul metropolitan area. Our analysis suggests that the development of the observed structures accommodating strike-slip, transtensional and transpressional deformations, could be explained by changes in the geometry of fault segments within a right-lateral strike-slip tectonic regime. Tectonic deformations were reproduced in the analogue model by imposing a small (about 10°) and sharp difference in the relative orientations of the strike-slip segments at the edges of a major releasing bend. In the model slower strain accumulation occurs along the analogue of the Çınarcık segment than along the analogue of the Izmit segment of the fault. This would predict a delay for earthquakes triggered by stress transfer between the Izmit and Çınarcık segments. The model further predicts that most of the deformation in the Çınarcık basin is controlled by the sharp changes in the geometry of the fault itself. 
PY 2020
PD NOV
SO Tectonophysics
SN 0040-1951
PU Elsevier BV
VL 794
UT 000582528200003
DI 10.1016/j.tecto.2020.228612
ID 75994
ER

EF