Regional zinc cycling in the Indian Ocean
Chinni and his colleagues present dissolved zinc distributions across the Arabian Sea, Bay of Bengal and southern tropical Indian Ocean…
Science
This section presents the GEOTRACES scientific activities.
Contrasting organic carbon remineralisation rates revealed by particulate excess barium in the North Pacific and South China Sea
Yuan and co-workers quantify organic carbon remineralisation in the twilight zone of the China Sea using particulate excess barium as a proxy…
Sedimentary controls on seawater nickel distributions and nickel isotope compositions: a two steps study
Nickel isotopic mass balance in the ocean stands among the less understood so far…
23 million years of productivity reconstructed in the Central Pacific Ocean using past and modern proxies
Using diverse geochemical proxies, Chu and colleagues analysed an iron–manganese crust to reconstruct central Pacific productivity over the past 23 million years.
Lead isotopes reveal that hydrothermal variability is driven by Sea‐Level change and transient magmatism
De and colleagues present the first millennial-scale reconstruction of hydrothermal variability at a mid-ocean ridge using lead isotopes from iron-manganese coatings…
Long-range transport of iron via the Agulhas Current and counter-current: a boon for the phytoplankton
Authors establish that significant iron fertilisation via the Agulhas current explains the Indian Subantarctic blooms…
Hydrothermal activity detected above the ultra-slow South West Indian Ridge, using a multi-proxy approach
Baudet and colleagues demonstrate the occurrence of hydrothermal venting on the Southwest Indian Ridge…
To Ba or not to Ba: Evaluating water column excess particulate barium as a proxy for water column respiration
Rahman and co-workers examine the relationship between excess particulate barium and organic matter respiration in the water column…
Assessment of the Solomon Sea’s dissolved iron contribution to the Equatorial Under Current
Sarthou and co-workers analysed 11 vertical profiles of dissolved iron at the entrance, within, and at the exit of the Solomon Sea…