Explore the words cloud of the ReVolusions project. It provides you a very rough idea of what is the project "ReVolusions" about.
The following table provides information about the project.
|Coordinator Country||Netherlands [NL]|
|Total cost||1˙709˙240 €|
|EC max contribution||1˙709˙240 € (100%)|
1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
|Duration (year-month-day)||from 2018-01-01 to 2022-12-31|
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Plate tectonics are fundamental to the geochemical cycles that link Earth’s mantle and exosphere and in turn control the atmosphere’s composition and our climate. Currently a major unknown is the exact fate of surface materials at destructive plate-tectonic boundaries (subduction zones). Specifically, what proportions of volatiles, sediments and oceanic crust are transported into the deep mantle, or are returned, i.e. ‘recycled’ to the crust and atmosphere. Global recycling flux estimates, including carbon, are contradictory highlighting the need for a new, more precise approach to their quantification.
I propose to better quantify global recycling fluxes by a geochemical study of two types of subduction zones: continental and oceanic zones of which the former has higher volatile fluxes and plays a key role in past and present-day climate change. The proposed work utilises isotope analyses of deeply formed melt inclusions, tiny pockets of melt trapped in minerals, to directly determine what comes back up in subduction zones. Undertaking a multiple isotope study of these inclusions is now possible, owing to my recent success in significantly improving mass spectrometer detector amplifier technology that led to an order of magnitude improvement in precision for isotope analyses of small samples.
I will integrate two ground-breaking techniques to identify recycled components and determine volcanic and deep mantle fluxes: 1) coupled Sr-Nd-Pb isotope ratio analysis of individual melt inclusions using the high-gain amplifier method I pioneered; 2) carbon and oxygen isotope analysis of CO2 from melt inclusions using a newly developed crushing technique. The outcomes of ReVolusions will provide crucial understanding of how subduction geodynamics control the distribution of elements between Earth’s major reservoirs (atmosphere, crust and mantle) that affects short and long-term climate changes.
|year||authors and title||journal||last update|
JANNE KOORNNEEF, IGOR NIKOGOSIAN, LISA HAGEMAN; MAXIMILIAN BERNDSEN; MANFRED VAN BERGEN, PIETER VROON, GARETH DAVIES
Combined Sr-Nd-Pb isotope analyses of individual melt inclusions to reveal extreme source heterogeneity
published pages: 12-13, ISSN: , DOI:
|Mineral-hosted melt inhclusions - How do we read the stories they have to tell?||2019-08-30|
Janne M. Koornneef, Igor Nikogosian, Manfred J. van Bergen, Pieter Z. Vroon, Gareth R. Davies
Ancient recycled lower crust in the mantle source of recent Italian magmatism
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-019-11072-5
|Nature Communications 10/1||2019-08-30|
Koornneef JM, Nikogosian I, Hageman L, Berndsen M, van Bergen MJ, Vroon PZ & Davies GR
Combined Sr-Nd-Pb isotope data on individual melt inclusions from Italy record extreme mantle heterogeneity induced by complex geodynamics
published pages: , ISSN: , DOI:
|Goldschmidt Abstracts 2018||2019-08-30|
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