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.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- humanities history and archaeology history
- natural sciences chemical sciences electrochemistry electrolysis
- natural sciences chemical sciences inorganic chemistry alkaline earth metals
- natural sciences earth and related environmental sciences geochemistry isotope geochemistry
- natural sciences physical sciences astronomy planetary sciences planets
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2015
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
29200 BREST
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.