A highly resolved record of stable carbon isotope values (?13C) the Late Cretaceous to Palaeogene (Cenomanian – Danian) was generated from ditch-cuttings material recovered Shearwater A9 hydrocarbon production well, Field, Central North Sea. The profile ?13C integrated with calcareous nannofossil and foraminifera biostratigraphy provide an stratigraphy for Chalk Group. Detailed correlation betw...

The quantitative analysis of the calcareous nannofossil content yield in 600 m thick succession drilled at ODP Site 1123 (offshore New Zealand), considered as a reference section for Southern Ocean region, allowed recognition 43 bioevents distributed along last 20 Myr. correlation with excellent magnetostratigraphic record resulted attribution numerical ages position detected horizons. Many mar...

In this study, the assemblage of calcareous nannofossils has been investigated in long and continuous deposits from a Kafaz section in Eastern Iran. A systematic study of calcareous nannofossils has indicated 39 nannofossils species. In order to the age determination of Kafaz's deposits, a revised zonation for the Eocene is used. Based on it, the Early-Middle Eocene deposits of Kafaz section is...