Objectif There is widespread recognition of the connectivity of different components of the Earth system, but many of these connections have not been studied. This is certainly true of connections between climate and the solid Earth. A thorough understanding of the climatic variations recorded in the geologic record cannot be obtained by studying climate in isolation from the solid Earth, and a complete understanding of the volcanic record requires consideration of the effects of climate variation. This is a proposal to investigate the coupling between climate and the solid Earth, and hence to better understand climate history and its impact on volcanism. The proposed work will use computational models of two-phase magma/mantle dynamics and petrology to explore links between glacial cycles and mid-ocean ridge volcanism. Glacial cycles redistribute water between the oceans and continents, changing sea level and hence varying the load on mid-ocean ridges. Melting beneath ridges responds to pressure changes, and should produce observable variation in crustal thickness and concentration of incompatible elements. Carbon dioxide is one such incompatible element, and pressure-induced variations in out-gassing rate from the mid-ocean ridge system to the climate system may provide the negative feedback that gives rise to glacial oscillations. The plausibility of this hypothesis depends on details of the response functions of the coupled systems. The proposed research group will develop a set of independent but synergistic projects that employ computational simulation to assess these responses, make testable geochemical and geophysical predictions, and validate models against observational data. This investigation has the potential to transform our understanding of mid-ocean ridge volcanism and of Quaternary ice ages. Champ scientifique natural sciencesearth and related environmental sciencesgeologyvolcanology Programme(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Thème(s) ERC-SG-PE10 - ERC Starting Grant - Earth system science Appel à propositions ERC-2011-StG_20101014 Voir d’autres projets de cet appel Régime de financement ERC-SG - ERC Starting Grant Institution d’accueil THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD Contribution de l’UE € 1 358 793,00 Adresse WELLINGTON SQUARE UNIVERSITY OFFICES OX1 2JD Oxford Royaume-Uni Voir sur la carte Région South East (England) Berkshire, Buckinghamshire and Oxfordshire Oxfordshire Type d’activité Higher or Secondary Education Establishments Chercheur principal Richard Foa Katz (Dr.) Contact administratif Gill Wells (Ms.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée Bénéficiaires (1) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD Royaume-Uni Contribution de l’UE € 1 358 793,00 Adresse WELLINGTON SQUARE UNIVERSITY OFFICES OX1 2JD Oxford Voir sur la carte Région South East (England) Berkshire, Buckinghamshire and Oxfordshire Oxfordshire Type d’activité Higher or Secondary Education Establishments Chercheur principal Richard Foa Katz (Dr.) Contact administratif Gill Wells (Ms.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée
