Organic matter export rates along a North-South Pacific Ocean section: what three estimating methods tell us
Quay and his colleagues present estimates of the organic matter export rate along the GEOTRACES GP15 cruise section.
Science Highlights
Some recent GEOTRACES science findings are reported below.
East-West contrasting fate and anthropogenic inputs for dissolved trace metals in the Subarctic Pacific Ocean
Chan and co-authors report the full-depth distribution of dissolved nickel, copper, zinc, and cadmium in the North Pacific Ocean.
Comprehensive quantification of the rare earth element cycle in the northwest Pacific Ocean
Cao and co-authors investigate dissolved rare earth elements and the factors controlling their distributions in the northwest Pacific Ocean.
Iron and zinc isotopes disentangle the anthropogenic, natural and wildfire sources of aerosols over the North and Equatorial Pacific Ocean
Bunnell and co-authors analysed aerosol iron and zinc isotopic compositions along the North Pacific GEOTRACES GP15 section (Alaska-Tahiti).
Contribution of sandy beaches to the oceanic silica cycle
This paper calls into question the commonly accepted idea of an oceanic silicon cycle in equilibrium.
North – South contrasting behavior of dissolved cobalt in the Indian Ocean
Malla and Singh have studied the complex biogeochemical processes of total dissolved cobalt in the Indian Ocean.
The Amazonian mangrove systems accumulate and release dissolved neodymium and hafnium to the oceans
Xu and colleagues investigated the concentrations of rare earth elements in the Amazonian mangrove.
Biological production of ligands influences iron chemistry in hydrothermal systems
For the first time, siderophores and siderophore-producing microbes were determined in 11 distinct hydrothermal plume environments.
Nutrient-OMICS coupling approach reveals unexpected actors for atmospheric carbon sequestration
Sharma and colleagues investigated the role of clay minerals in strengthening the marine biological pump.