The upper Coniacian to upper Santonian drowned Arabian carbonate platform, the Mardin-Mazidag area, SE Turkey: Sedimentological, stratigraphic, and ichthyofaunal records

Date

2018-04-01

Author

Yılmaz, İsmail Ömer
Hosgor, Izzet
Wagreich, Michael
Rebman, Katherine
Murray, Alison M.

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A measured stratigraphic section including the upper Coniacian - upper Santonian interval in the Mardin-Mazidag area in Southeastern Turkey lies on the Arabian Platform and documents the drowning of the Arabian platform. The studied succession transgressively overlies the exposed carbonate platform and exhibits a relatively condensed sequence characterized by presence of fish remains, phosphate nodules, oncoids, phosphatic fragments, glauconites and planktonic foraminifera. Calcareous nanno-fossils attest a late Coniacian to late Santonian age (zones UC11 - UC12). Numerous elasmobranch teeth are also present in this pelagic fades, representing mackerel sharks (Squalicorax, Pseudocorax and Scapanorhynchus) and a ray (Ctenopristis). The presence of pelagic facies and phosphate deposits on the drowned platform may indicate a sudden rise of sea level and increase of nutrient due to upwelling currents. The collapse parts of the Arabian carbonate platform occurred earlier than previously reported, starting from late Coniacian-Santonian onwards.

Subject Keywords

Elasmobranch teeth, SE Turkey, Drowned Arabian carbonate platform, Late Coniacian - Late Santonian

URI

https://hdl.handle.net/11511/42077

Journal

CRETACEOUS RESEARCH

DOI

https://doi.org/10.1016/j.cretres.2017.09.012

Collections

Department of Geological Engineering, Article

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Citation Formats

İ. Ö. Yılmaz, I. Hosgor, M. Wagreich, K. Rebman, and A. M. Murray, “The upper Coniacian to upper Santonian drowned Arabian carbonate platform, the Mardin-Mazidag area, SE Turkey: Sedimentological, stratigraphic, and ichthyofaunal records,” CRETACEOUS RESEARCH, pp. 153–167, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42077.