T3.E03 Deciphering Cretaceous environmental and climate perturbations by means of high-resolution bio-chemostratigraphic and geochemical approaches

The Cretaceous is characterized by profound environmental and climatic perturbations, which are evidently expressed by characteristic biotic turnovers and facies changes in carbonate platform settings. Unfortunately, precise temporal assignment of the shallow-water response to environmental stressors is often problematical due to a poor biostratigraphic control and/or a significant diagenetic overprint of bulk carbonate geochemical archives. Strontium and carbon-isotope stratigraphy based on low-Mg calcite shells (e.g., rudists, brachiopods, oysters) constitutes a reliable and powerful correlation tool to increase the stratigraphic resolution. Furthermore, the elemental and stable isotope composition of shells has been shown to provide valuable insights into palaeoceanographic changes both on a regional and global scale. We therefore invite researchers who developed a high-resolution, integrated bio-chemostratigraphic and geochemical approach that helps to improve our understanding of Cretaceous environmental and climate change in shallow water carbonates.


10th International Symposium on the Cretaceous System | Universitätsring 1  | 1010 Wien