The National Science Foundation Division of Ocean Sciences awarded a $1,167,513 three-year Project Grant to Columbia University under the Geosciences federal grant program (CFDA 47.050) to support collaborative research titled "COLLABORATIVE RESEARCH: U.S. GEOTRACES GP17-OCE AND GP17-ANT: THORIUM-230, THORIUM-232 AND PROTACTINIUM-231 AS TRACERS OF TRACE ELEMENT SUPPLY AND REMOVAL." The Geosciences program aims to expand fundamental knowledge of the integrated Earth system through basic research in atmospheric, earth, and ocean sciences. Under this award, Columbia University will utilize thorium and protactinium isotopes as tracers to study trace element supply and removal in the oceans, in collaboration with the U.S. GEOTRACES program, which seeks to improve understanding of biogeochemical cycles and fluxes that regulate the composition of seawater. The period of performance for this research is July 1, 2021 through June 30, 2024.
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