Bio-evolution patterns in a green-house world: Calcareous nannofossils from the Cenomanian-Turonian interval of NW-Europe

本文拟对温斯托夫、康拉德、巴德德肯斯泰特、伊斯特本、戈班斯普尔五个剖面的塞诺马尼亚-都罗纪进行生物地层学、古生态和古海洋学研究，重点研究旺斯托夫。这些剖面涵盖了从浅水平台环境到半深海黑色页岩到部分以黑色页岩为主的远洋白垩岩序列的横断面。高分辨率稳定同位素曲线(δ18O，δ13C)为这些地点的高分辨率对比提供了详细的地层格架。这项研究旨在通过对钙质超微化石的分析和解释，更好地重建不同海洋环境和不同沉积信号(黑色页岩与白垩岩)的古环境和古海洋学。我们想要了解白垩纪温室世界鼎盛时期不同海洋环境中钙质纳米化石的演化和辐射模式。我们的项目有以下目标：a)建立Wunstorf岩芯的高分辨率生物地层学框架，b)了解不同中纬度地点的古生态和古海洋学，c)根据Calc解释黑色页岩和白垩岩建造。纳米化石生产力，d)破译钙质的进化。在全球温室世界的巅峰时期的纳米化石。

We intend to study the biostratigraphy, palaeoecology and palaeoceanography of the Cenomanian - Turonian of five sections (Wunstorf, Konrad, Baddeckenstedt, Eastbourne, Goban Spur) with the focus on Wunstorf. These sections cover a transect from shallow water platform settings via hemi-pelagic black shales to pelagic chalk successions partly with black shales. High resolution stable isotope curves (δ18O, δ13C) provide a detailed stratigraphic framework for a high resolution correlation of each of these sites. This study aims at a better reconstruction of the paleoenvironment and palaeoceanography of different marine settings and the heterogenous sediment signals (black shale versus chalk) by analysing and interpreting the calcareous nannofossils. We want to understand the evolution and radiation patterns of calcareous nannofossils in different oceanographic environments during the peak of the Cretaceous greenhouse world. Our project has the following goals: a) to develop a high resolution biostratigraphie framework for the Wunstorf core, b) to understand the paleoecology and paleoceanography of different mid-latitudinal sites, c) to interpret both, black shale and chalk formation in the light of calc. nannofossil productivity, d) to decipher the evolution of calc. nannofossils during the peak of the global green house world.