ДО БІОСТРАТИГРАФІЇ НЕОГЕН - ПАЛЕОГЕНОВИХ ВІДКЛАДІВ АЛЬМІНСЬКОЇ ЗАПАДИНИ КРИМУ

• Datum: 2012
• Hauptverfasser: Anistratenko, O., Vernyhorova, Yu., Kovalenko, V., Liuleva, S., Osmanov, E., Ramskyi, S., Riabokon, T.
• Format: Artikel
• Sprache: Ukrainian
• Veröffentlicht: Institute of Geological Sciences of the Ukrainian National Academy of Sciences 2012
• Schlagworte: УДК 56; 551.78(477.75)
• Online Zugang: http://ts.igs-nas.org.ua/article/view/93140
• Назва журналу: Tectonics and stratigraphy

Paleontological study of the Paleogene–Neogene deposits cored by boreholes 302 (Ravnopolie village) and 303 (Verhnesadovoe village) is provided – the Alma depression, the Crimea. Biostratigraphic units (zones and beds with fossils) are identified in the Paleogene section: beds with Subbotina turkmenica in marls and clays strata of the Kumian regiostage; foraminiferal zones Globigerapsis tropicalis s.l. and Planulina costata, nanoplankton zone NP19-20 in the Alma suite of the Almian regiostage; beds with Globigerina officinalis, beds with Lenticulina herrmanni, zones NP19-20, NP21 and NP22 in the Kyzyldjar strata and beds with Spiroplectammina oligocenica, zonа NP22 in the Zubakian strata of the Planorbellian regiostage. Neogene deposits lies with ravinement on the Lower Oligocene ones. In the neogene section the Novomoskovsk and the Dnepropetrovsk-Vassilievka beds of the Middle Sarmatian, the Maeotian and the Pontian are identified by characteristic associations of foraminifers, ostracodes and nanoplancton. Several levels of redeposition are established: Chokrakian mollusks, Konkian ostracodes and Paleogene foraminifers found out together in the Middle Sarmatian’s Dnepropetrovsk-Vassilievka beds. Thirty tree Middle Sarmatian gastropod species revealed in the Alma depression deposits for the first time. Also the representatives of genera Blinia, Flexitectura, “Amnicola”, Odostomia, Omalogyra and Melanochlamys are identified in the territory for the first time.