Post-doc position in Geology [http://www.academictransfer.nl/org/vacancies/detail.cfm?vacature_ID=J7PY9XUE] Utrecht University Faculty of Geosciences Anoxic Events occurred regularly during the Cretaceous. During these events organic-rich 'black shales' were formed when and at places where the production rate of organic compounds was higher than their decay rate. Over time the organic-rich sediments were transformed into source rocks for oil and gas. Important constraints for the formation of source rock are, amongst others, nutrient supply, climate and ocean circulation. In this project, geologists, geochemists, and climate researchers work together to develop a new strategy to predict the presence and distribution of source rocks using geological and climate model simulations. This project is concerned with the modelling of Earth's climate, oceanography and environment of deposition for particular periods within the Cretaceous. A key question concerns the influence of tectonic events and changing palaeogeography on climate and ocean circulation, and subsequently on the distribution of 'black shales'. Geological data from boreholes as well as other relevant geological and geochemical data will be used for validation of the model results. It is expected that you work together with a climate modeler on the development of a fully coupled general circulation model for the Cretaceous period, and moreover with a geochemist who focuses on the geochemical aspects. For this project we intend to use, as a starting point, version 3.0 of the NCAR-CCSM (see http://www.cgd.ucar.edu/csm/). New palaeogeographic data sets will be loaded into this model. The coupled model will be used to build climate models for specific time slices within the Cretaceous. Detailed case studies for particular areas are foreseen, such as: (1) the impact of plate tectonic events on changes in the palaeogeography of an area: (2) the effects of changes in bathymetry on ocean circulation, (3) change of climate, (4) the environment of deposition of black shales, etc. ----------------------------------------------- Full Professor of Earth System Science [http://www.academictransfer.nl/org/vacancies/detail.cfm?vacature_ID=85CH7VI5] Wageningen University and Researchcentre Applications are invited for a position as full professor of Earth System Science, focusing on the biogeochemistry of the earth system. Special attention is paid to quantifying the interactions in the terrestrial part of the earth system. The new professor must be able and willing to bridge the gap between the specialist geoscientific disciplines, which focus on the local scales (microscale, farm/field scale and landscape), and environmental sciences that study global changes. The candidate is supposed to have an integrative approach of the earth system and an affinity with modelling. -----------------------------------------------
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