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OXYGEN SIGNED

The redox evolution of arc magmas: from the oxygenation of the Earth’s atmosphere to the genesis of giant hydrothermal ore deposits

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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 OXYGEN project word cloud

Explore the words cloud of the OXYGEN project. It provides you a very rough idea of what is the project "OXYGEN" about.

oxygenation    minerals    obtain    concentrations    quantified    zones    significantly    pd    magma    degassing    instrumentation    atmosphere    combination    pressures    reactions    capability    analytical    similarly    genesis    petrology    potentially    significance    types    fluids    debated    experimentally    revolutionary    lower    computational    subsequently    arc    will    subduction    re    pt    silicate    speciation    responsible    experiments    questions    hydrothermal    crustal    melt    temperatures    redox    earth    precision    inclusions    critical    simulations    volatile    despite    pressure    unparalleled    oxygen    quantitative    time    combine    first    differentiation    sulfur    magmatism    cell    mass    transfer    oxidation    voluminous    powerful    agents    origin    prospective    oxidized    spectroscopic    employ    pinpoint    ore    generation    budget    au    upper    place    regions    spheres    situ    apparatus    ratios    deposits    evolution    temperature    aqueous    prototype    isotope    magmas    giant    chemical    magmatic    rely   

Project "OXYGEN" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITE DE GENEVE 

Organization address
address: RUE DU GENERAL DUFOUR 24
city: GENEVE
postcode: 1211
website: www.unige.ch

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Switzerland [CH]
 Total cost 2˙406˙972 €
 EC max contribution 2˙406˙972 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2019-COG
 Funding Scheme ERC-COG
 Starting year 2020
 Duration (year-month-day) from 2020-11-01   to  2025-10-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITE DE GENEVE CH (GENEVE) coordinator 2˙406˙972.00

Map

 Project objective

Arc magmatism at subduction zones is responsible for much of the mass transfer of chemical elements between the Earth’s lower and upper spheres. Arc magmas are significantly more oxidized and richer in volatile elements than other voluminous magma types on Earth. These characteristics promote the genesis of large magmatic-hydrothermal ore deposits and potentially also the build-up of the oxygen budget of the Earth’s atmosphere. Despite its great significance, the origin of the higher oxidation state of arc magmas is still one of the most debated questions in petrology. I will combine high-pressure-temperature experiments, field-based studies and computational simulations to obtain quantitative understanding of redox reactions taking place during magma genesis, differentiation and degassing. Subsequently, I will apply this new knowledge to assess if arc magmatism may have been a key to the oxygenation of the Earth’s atmosphere, and to pinpoint the most prospective regions for the generation of giant ore deposits. Most experiments will rely on revolutionary new instrumentation and methodologies, which I have recently developed or will develop as a part of the project. For example, we will determine for the first time the speciation of sulfur in aqueous fluids in situ at magmatic temperatures and upper crustal pressures by using a prototype spectroscopic cell, so that its critical role in redox transfer and ore genesis can be quantified. Similarly, the field-based studies will employ a new method to constrain the redox evolution of magmas with unparalleled precision, which will be developed experimentally by using a prototype high-pressure apparatus with a unique capability to control redox conditions. In addition, these will also apply a powerful combination of novel and challenging analytical methods including the analysis of Au, Pt, Pd and Re concentrations and S isotope ratios in silicate melt inclusions in minerals to identify the key agents of magma oxidation.

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The information about "OXYGEN" are provided by the European Opendata Portal: CORDIS opendata.

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lastchecktime (2022-08-18 1:53:44) correctly updated