Silicon isotopes reveal significant lithogenic input to dissolved silicon on the Kerguelen Plateau
Establishing sources, transformations and sinks of dissolved silicon, a major nutrient in the Southern Ocean, is of primary importance…
Science Highlights
Some recent GEOTRACES science findings are reported below.
Conservative behavior of radiogenic neodymium isotopes in the South Pacific interior
Zhang and co-workers present full-depth measurements of εNd and Nd concentrations along the GP21 transect across the South Pacific basin…
Neodymium isotopes trace past Antarctic Intermediate Water circulation in the Arabian Sea
Shukla and co-authors reconstruct ventilation in the Northwestern Indian Ocean…
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…
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…