Oligocene to Neogene paleogeography and depositional environments of the Euxinian part of Paratethys in Crimean – Caucasian junction
2019; Elsevier BV; Volume: 103; Linguagem: Inglês
10.1016/j.marpetgeo.2019.02.019
ISSN1873-4073
AutoresSergej V. Popov, Yuliana Rostovtseva, T. N. Pinchuk, I. S. Patina, I. A. Goncharova,
Tópico(s)earthquake and tectonic studies
ResumoPaleogeography and depositional environments in the zone of junction of the Crimea and the Greater Caucasus, as well as adjacent areas of the West Kuban Basin, the Sea of Azov and the Western Ciscaucasia are described based on the results of drilling works, seismic studies and multidisciplinary research. Paleogeographic maps are compiled for the early Oligocene, middle Miocene (Karaganian and early Sarmatian) and late Miocene (late Maeotian and early Pontian). The maps represented show gradual sediment filling of the deep West Kuban trough during the Maikopian and middle Miocene, and its gradual closure in the Kerch-Taman area. The deep-water connection of this trough with the Black Sea basin through the Sorokin trough had been closed by the mid-Sarmatian. The entire Kerch-Taman region became shallow by the end of the Maeotian. Significant sea level falls occurred at the end of the Tarkhanian and Sarmatian as well as in the middle of the Pontian. Large erosion channels from these times are traced on the geological and seismic profiles of the northern Scythian shelf.
Referência(s)