Search results for " Kopet-Dagh basin"

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Planktonic foraminifera biozones and isotope stratigraphy of the Cenomanian-Turonian boundary in the western part of the Kopet-Dagh Basin, NE Iran

2018

Abstract A biostratigraphic study based on the planktonic foraminifera and isotope stratigraphy of the Cenomanian-Turonian interval has been undertaken in the western part of the Kopet-Dagh Basin (NE Iran). In this research, two stratigraphic sections including: Maraveh Tappeh and Qareh Galdy have been sampled and studied. Based on planktonic foraminifera, three biozones were assigned to this interval. These are the Rotalipora cushmani Zone, Whiteinella archaeocretacea Zone and Helvetoglobotruncana helvetica Zone, These biostratigraphic data confirm a gradual faunal turnover of planktonic foraminifera, at the Cenomanian-Turonian boundary in Whiteinella archaeocretacea Zone characterized by:…

010506 paleontologybiologyδ18OGeologyBiozoneBiostratigraphyStructural basin010502 geochemistry & geophysicsbiology.organism_classification01 natural sciencesForaminiferaPaleontologyStratigraphyBiostratigraphy Light isotopes Cenomanian-Turonian boundary Kopet-Dagh basin NE IranCenomanianSiltstoneGeology0105 earth and related environmental sciencesEarth-Surface ProcessesJournal of African Earth Sciences
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