Opendata, web and dolomites


Probing the Memory of Earth Anoxia: New Stable Isotope Constraints on the Rise of Oxygen

Total Cost €


EC-Contrib. €






 ANOXIA-MEM project word cloud

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

accompanied    parties    constrained    accumulated    sedimentary    bearing    true    supports    fractionation    mem    maximum    ed    oxygenation    planet    smoking    first    measured    capacity    promises    life    lasted    prolonged    skills    atmosphere    harmonize    independent    ago    curie    models    revolution    sediments    disappearance    benefit    examined    memory    poised    amongst    american    obscuring    fundamental    composition    2400    gun    mass    biological    designed    renowned    tools    mif    effect    earth    200    researcher    ca    proxies    paradigm    relative    permanent    onset    newcomers    record    evolution    majority    anoxia    dramatic    prevailed    marie    oxygen    samples    events    laboratories    drilling    origin    signals    o2    sulfur    profound    french    suggested    hypotheses    isotope    history    geochemical    older    weathering    ma    2320    600    uniquely    training    geochemistry    ancient    million    atmospheric    time    strontium    animal    upset    prevailing    resolve   

Project "ANOXIA-MEM" data sheet

The following table provides information about the project.


Organization address
city: BREST
postcode: 29238

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 France [FR]
 Total cost 185˙076 €
 EC max contribution 185˙076 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-04-01   to  2018-03-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Atmospheric anoxia prevailed throughout the majority of Earth history, making oxygen and the animal life it supports relative newcomers to our planet. O2 accumulated in Earth’s atmosphere during two dramatic oxygenation events at ~2400 and ~600 million years ago (Ma). Both of these events were accompanied by profound biological and geochemical revolution, including the origin of animal life, making them amongst the most important events the Earth system has ever witnessed. Because the composition of Earth’s ancient atmosphere cannot be measured directly, its history must be examined using models constrained by geochemical proxies. The disappearance of sulfur isotope mass-independent fractionation (S-MIF) from the sedimentary record ca. 2320 Ma is considered the “smoking gun” evidence for the permanent oxygenation of Earth’s atmosphere. However, it was recently suggested that weathering of older S-MIF bearing sediments resulted in a prolonged S-MIF “memory effect” that lasted ~200 Ma or more, thus obscuring the true history of atmospheric oxygenation. Here I propose new hypotheses to test, for the first time, the importance of the S-MIF memory effect at the onset of atmospheric oxygenation. I will evaluate specific sulfur, strontium, and oxygen isotope signals from exciting new samples obtained through a recent French drilling program to help resolve this fundamental problem in Earth system evolution. As an American Experienced Researcher, this Marie Curie project, ANOXIA-MEM, is designed to harmonize my unique isotope geochemistry skills with the knowledge, resources, and training capacity of two renowned French isotope laboratories for the maximum benefit of all parties. This project promises new tools and analyses that are uniquely poised to upset the prevailing paradigm for Earth’s atmospheric oxygenation.


year authors and title journal last update
List of publications.
2018 Pascal Philippot, Janaína N. Ávila, Bryan A. Killingsworth, Svetlana Tessalina, Franck Baton, Tom Caquineau, Elodie Muller, Ernesto Pecoits, Pierre Cartigny, Stefan V. Lalonde, Trevor R. Ireland, Christophe Thomazo, Martin J. van Kranendonk, Vincent Busigny
Globally asynchronous sulphur isotope signals require re-definition of the Great Oxidation Event
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-04621-x
Nature Communications 9/1 2019-06-13

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