Late Cretaceous stratigraphy in the Mudurnu–Göynük Basin (Turkey) and inferences on sea-level change in the Late Campanian to Early Maastrichtian

Autor(en)

Erik Wolfgring, Michael Wagreich, Ismail O. Yilmaz, Liu Shasha, Katharina Boehm

Abstrakt

Upper Cretaceous strata at Göynük, northwestern Anatolia, Turkey, provide a geological record of the Campanian–Maastrichtian from the Sakarya Terrane along the active Neotethys margin. Shales and shaly marls with siliciclastic and volcaniclastic intercalations indicate a pelagic palaeoenvironment rich in planktonic and benthonic foraminifera and calcareous nannofossil assemblages. A composite record from the Campanian to the Maastrichtian records nannofossil standard zones UC15c (CC21) to UC20a (CC26) as well as the Globotrunanella havanensis planktonic foraminifera Zone to the Racemiguembelina fructicosa planktonic foraminifera Zone. The complete ‘mid’-Campanian to early Maastrichtian composite section can be correlated to other western Tethyan sections. The Campanian–Maastrichtian boundary is positioned between the first occurrence of the planktonic foraminifera Gansserina gansseri and the last occurrence of the nannofossil Uniplanarius trifidus. Clastic input and higher sedimentation rates constrain regional sea-level lowstands around the late Campanian calcarata Zone and the Campanian–Maastrichtian boundary, corresponding to the Campanian–Maastrichtian boundary event.

Organisation(en)

Institut für Paläontologie, Institut für Geologie

Externe Organisation(en)

Middle East Technical University, Hebei GEO University

Journal

Geological Society Special Publications

Seiten

129-146

Anzahl der Seiten

18

DOI

https://doi.org/10.1144/SP498-2018-145

Publikationsdatum

2020

Peer-reviewed

Ja

ÖFOS 2012

105118 Paläontologie

ASJC Scopus Sachgebiete

Water Science and Technology, Ocean Engineering, Geology

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/20b89c38-f8ce-45e3-8c81-bfd8b974f037