Articles | Volume 10, issue 3
Research article
13 Jun 2019
Research article |  | 13 Jun 2019

3-D crustal density model of the Sea of Marmara

Ershad Gholamrezaie, Magdalena Scheck-Wenderoth, Judith Bott, Oliver Heidbach, and Manfred R. Strecker

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Cited articles

Akbayram, K., Sorlien, C. C., and Okay, A. I.: Evidence for a minimum 52±1 km of total offset along the northern branch of the North Anatolian Fault in northwest Turkey, Tectonophysics, 668, 35–41,, 2016a. 
Akbayram, K., Şengör, A. C., and Özcan, E.: The evolution of the Intra-Pontide suture: implications of the discovery of late Cretaceous–early Tertiary melanges, Geol.l Soc. Am. Spec. Pap., 525, SPE525–18,, 2016b. 
Aksoy, R.: Stratigraphy of the Marmara sland and Kapıdag Peninsula, Bulletin of Turkish Petroleum Geologists Society, 7, 33–49, 1995. (in Turkish) 
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Short summary
Based on geophysical data integration and 3-D gravity modeling, we show that significant density heterogeneities are expressed as two large high-density bodies in the crust below the Sea of Marmara. The location of these bodies correlates spatially with the bends of the main Marmara fault, indicating that rheological contrasts in the crust may influence the fault kinematics. Our findings may have implications for seismic hazard and risk assessments in the Marmara region.