Cel "Today, subduction dominates the Earth’s appearance: it drives plate tectonics, and plays a dominant role in continental crust formation. If and how subduction operated 2.5-4 billion years ago, in the Archaean, is debated, primarily on the basis of the sparse Archaean geological record. It seems likely that some form of subduction occurred at least by the late Archaean, but may well have looked different from today’s. A proper understanding of this Archaean ‘subduction’ is essential, since so many processes are likely to depend on it.Observations of the geological (mostly isotope-geochemical) record have provided an invaluable window to peer into the Archaean world. But inferred Archaean geodynamics from these observations are non-unique. Various models fit the same data within uncertainty, and often lack a firm physical basis. To overcome these shortcomings, I propose a novel, forward approach of predicting synthetic geochemical fingerprints from numerical, geodynamically consistent physical models, and comparing those with geochemical observations. This will be used to constrain and better understand the two most pressing questions in Earth sciences: How did plate tectonics evolve, and how did continents form? In particular, this project aims to:1) assess quantitatively the geodynamical and geochemical viability of intermittent plate tectonics;2) test the various proposed models for the formation of Archaean continental crust;Comparison of calculated synthetic geochemistry (e.g. Re-Os data, rare-Earth element data) from geodynamical models with available datasets will provide powerful diagnostics to distinguish viable models.In addition, this work will also directly relevant for the evolution of the Earth’s surface, and to the differences with the other terrestrial planets. Finally, there are potential economic benefits, since the world’s largest mineral deposits (e.g. gold) occur in Archaean terrains and have been associated to subduction." Dziedzina nauki natural sciencesearth and related environmental sciencesgeochemistryengineering and technologyenvironmental engineeringmining and mineral processingnatural sciencesphysical sciencesastronomyplanetary sciencesplanetsnatural sciencesearth and related environmental sciencesgeologyseismologyplate tectonics Program(-y) 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) Temat(-y) ERC-SG-PE10 - ERC Starting Grant - Earth system science Zaproszenie do składania wniosków ERC-2011-StG_20101014 Zobacz inne projekty w ramach tego zaproszenia System finansowania ERC-SG - ERC Starting Grant Instytucja przyjmująca UNIVERSITY OF DURHAM Wkład UE € 1 443 503,00 Adres STOCKTON ROAD THE PALATINE CENTRE DH1 3LE Durham Zjednoczone Królestwo Zobacz na mapie Region North East (England) Tees Valley and Durham Durham CC Rodzaj działalności Higher or Secondary Education Establishments Kontakt administracyjny Wendy Harle (Ms.) Kierownik naukowy Jeroen Van Hunen (Dr.) Linki Kontakt z organizacją Opens in new window Strona internetowa Opens in new window Koszt całkowity Brak danych Beneficjenci (2) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko UNIVERSITY OF DURHAM Zjednoczone Królestwo Wkład UE € 1 443 503,00 Adres STOCKTON ROAD THE PALATINE CENTRE DH1 3LE Durham Zobacz na mapie Region North East (England) Tees Valley and Durham Durham CC Rodzaj działalności Higher or Secondary Education Establishments Kontakt administracyjny Wendy Harle (Ms.) Kierownik naukowy Jeroen Van Hunen (Dr.) Linki Kontakt z organizacją Opens in new window Strona internetowa Opens in new window Koszt całkowity Brak danych UNIVERSITE JEAN MONNET SAINT-ETIENNE Francja Wkład UE € 47 235,02 Adres RUE TREFILERIE 10 42023 Saint Etienne Zobacz na mapie Region Auvergne-Rhône-Alpes Rhône-Alpes Loire Rodzaj działalności Higher or Secondary Education Establishments Kontakt administracyjny Odile Barou (Ms.) Linki Kontakt z organizacją Opens in new window Strona internetowa Opens in new window Koszt całkowity Brak danych
