Seismic imaging of the three-dimensional architecture of the Cinarcik Basin along the North Anatolian Fault

Publication Type  Journal Article
Year of Publication  2007
Authors  Carton, H.; Singh, S. C.; Hirn, A.; Bazin, S.; de Voogd, B.; Vigner, A.; Ricolleau, A.; Cetin, S.; Ocakoglu, N.; Karakoc, F.; Sevilgen, V.
Journal Title  Journal of Geophysical Research-Solid Earth
Volume  112
Issue  B6
Pages  -
Journal Date  Jun 21
ISBN Number  0148-0227
Accession Number  ISI:000247538100001
Key Words  pull-apart basins; 1999 izmit earthquake; marmara sea; westward propagation; plate kinematics; western turkey; active faults; nw turkey; slip; reflection

The Cinarcik Basin is a transtensional basin located along the northern branch of the northern North Anatolian Fault (NAF) in the Sea of Marmara, the eastern half of which has been identified as a seismic gap. During the SEISMARMARA (2001) experiment, a dense grid of multichannel seismic reflection profiles was shot, covering the whole Cinarcik Basin and its margins. The new seismic images provide a nearly three-dimensional view of the architecture of the basin (fault system at depth and sedimentary infill) and provide insight into its tectonic evolution. Along both northern and southern margins of the basin, seismic reflection data show deep-penetrating faults, hence long-lived features, which have accommodated a large amount of extension. There is no indication in the data for a single throughgoing strike-slip fault, neither a cross-basin fault nor a pure strike-slip fault running along the northern margin. Faster opening is presently observed in the eastern part of the basin. The Cinarcik Basin seems to have developed as a transtensional basin across strike-slip segments of the northern NAF for the last few million years.


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URL  <Go to ISI>://000247538100001
DOI  Doi 10.1029/2006jb004548