Manceau Lab

European Synchrotron Radiation Facility

Auvergne-Rhône-Alpes (FRK) · France

ERC-funded
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ERC Advanced Grant · 2021

Fathoming SEquestration and Enrichment of metals in DEEP marine deposits with novel micro-X-ray emission spectroscopy

Rare earth elements (REE) and transition and post-transition metals (TM) are essential to modern life, yet we know little about how they concentrate at Earth’s surface, especially on the seafloor, which holds vast reserves. The DEEP-SEE project will shift paradigms on marine metal deposits from chemical composition and resource inventories to a holistic view based on atomic-scale observations and modeling. This research will determine geochemical processes that give rise to some of the highest metal partitionings in supergene ores. First, crystal chemistry of 3+ REE in biogenic vs. authigenic sedimentary apatite is proposed as a new proxy for the paleoceanographic enrichment setting with…

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