Université de Fribourg

Geodynamics, seismicity, and seismic hazards of the Caucasus

Ismail-Zadeh, Alik ; Adamia, Shota ; Chabukiani, Aleksandre ; Chelidze, Tamaz ; Cloetingh, Sierd ; Floyd, Michael ; Gorshkov, Alexander ; Gvishiani, Alexei ; Ismail-Zadeh, Tahir ; Kabanh, Mikhail K. ; Kadirov, Fakhraddin ; Karapetyan, Jon ; Kangarli, Talat ; Kiria, Jemal ; Koulakov, Ivan ; Mosar, Jon ; Mumladze, Tea ; Müller, Birgit ; Sadradze, Nino ; Safarov, Rafig ; Schilling, Frank ; Soloviev, Alexander

In: Earth-Science Reviews, 2020, vol. 207, p. 103222

Being a part of ongoing continental collision between the Arabian and Eurasian plates, the Caucasus region is a remarkable site of moderate to strong seismicity, where devastating earthquakes caused significant losses of lives and livelihood. In this article, we survey geology and geodynamics of the Caucasus and its surroundings; magmatism and heat flow; active tectonics and tectonic stresses...

Université de Fribourg

The eastern Black Sea-Caucasus region during the Cretaceous: New evidence to constrain its tectonic evolution

Sosson, Marc ; Stephenson, Randell ; Sheremet, Yevgeniya ; Rolland, Yann ; Adamia, Shota ; Melkonian, Rafael ; Kangarli, Talat ; Yegorova, Tamara ; Avagyan, Ara ; Galoyan, Ghazar ; Danelian, Taniel ; Hässig, Marc ; Meijers, Maud ; Müller, Carla ; Sahakyan, Lilit ; Sadradze, Nino ; Alania, Victor ; Enukidze, Onice ; Mosar, Jon

In: Comptes Rendus Geoscience, 2016, vol. 348, no. 1, p. 23–32

We report new observations in the eastern Black Sea-Caucasus region that allow reconstructing the evolution of the Neotethys in the Cretaceous. At that time, the Neotethys oceanic plate was subducting northward below the continental Eurasia plate. Based on the analysis of the obducted ophiolites that crop out throughout Lesser Caucasus and East Anatolides, we show that a spreading center...