Radium in Changing Environments: A Novel Tracer of Iron Fluxes at Ocean Margins (RaCE:TraX) is a NERC (Natural Environment Research Council) funded project which involves using Radium (Ra) as a tracer to better understand the cycling of Iron (Fe) in the marine environment.
This project aims to answer three key questions to fill the gaps in our knowledge of the Fe cycle:
- How much Fe comes from continental shelf sediments?
- How much Fe is supplied by glacial meltwater?
- How rapidly is Fe scavenged from the metal-rich fluids at hydrothermal vents?
NERC Grant Reference NE/P017630/1 'Radium in Changing Environments: A Novel Tracer of Iron Fluxes at Ocean Margins'.
Data has been collected on the James Clark Ross cruise JR18002
RaCE:TraX aim for this cruise was to measure Ra and Actinium (Ac) isotope ratios from samples across the Drake passage, to be used along with samples from the Western Antarctic Peninsula (Cruise JR18003) to determine the origin of Fe in the Antarctic Circumpolar Current.This project was a collaboration between AL Annett, University of Southampton (Lead Principal Investigator) and additional project members and cruise participants from the University of Southampton and the University of Bristol.
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