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

Ismail O. Yilmaz, Todd D. Cook, Izzet Hosgor, Michael Wagreich, Katherine Rebman, Alison M. Murray

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

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 nannofossils attest a late Coniacian to late Santonian age (zones UC11 – UC12). Numerous elasmobranch teeth are also present in this pelagic facies, 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.

Original languageEnglish (US)
Pages (from-to)153-167
Number of pages15
JournalCretaceous Research
Volume84
DOIs
StatePublished - Apr 2018

All Science Journal Classification (ASJC) codes

  • Palaeontology

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