Middle Jurassic Lower Cretaceous biostratigraphy in the Central Pontides (Turkey): Remarks on paleogeography and tectonic evolution


Rojay B., Altiner D.

RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA, vol.104, no.2, pp.167-179, 1998 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 104 Issue: 2
  • Publication Date: 1998
  • Journal Name: RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.167-179
  • Keywords: Callovian-Aptian, biostratigraphy, Ammonitico Rosso, paleogeography, tectonic evolution, Amasya, Central Pontides, Turkey

Abstract

The deposition of Jurassic-Lower Cretaceous carbonates in the Pontides was controlled mainly by the evolution of an Atlantic-type continental margin in the Tethys. The study of several stratigraphic sections from allochthonous slices and blocks of the North Anatolian Ophiolitic Melange provided insight into the Middle Jurassic-Early Cretaceous paleogeographic evolution of the Central Pontide Belt. The Callovian-Aptian successions span the Globuligerina gr. oxfordiana, Clypeina jurassica (equivalent of the Tubiphytes morronensis zone), Protopeneroplis ultragranulata (with the Haplophragmoides joukowskyi subzone), Montsalevia salevensis, Hedbergella delrioensis - Hedbergella planispira - Larpoldina - Globigerinelloides and Globigerinelloides algerianus biozones.