Zinc and lead isotopes reveal human footprint on the most remote oceanic regions
Benaltabet and co-workers analysed suspended particles collected on GEOTRACES GP21 cruise tracked from Chile to New Caledonia.
Science Highlights
Some recent GEOTRACES science findings are reported below.
Organic binding site heterogeneity controls amorphous ferric oxy-hydroxides oceanic sink
In oxygenated seawater iron binds to hydroxide ions, which results in authigenic Fe precipitation as amorphous ferric oxy-hydroxide…
Microbial trace metal transport in distinct water masses of the Southern Indian Ocean
Zhang and colleagues used genes coding for membrane transporters as proxies to map the distribution of the uptake and efflux of the trace metals…
Do not mourn Nobias any longer: InertSep ME-2 is coming!
Thanks to the thorough development proposed by Alifia and co-workers, the community may have a solution to the shortage of Nobias Chelate PA-1…
Long-range transport of iron off the Antarctic Peninsula
Tian and co-authors investigate dissolved iron concentrations and isotope compositions in the western Weddell Sea…
Seasonal variation of the dissolved iron ligands in the South Atlantic sector of the Southern Ocean
In the ocean, up to 99% of the dissolved iron is strongly complexed with organic compounds known as iron-binding ligands…
Tracing the origin of iron in the equatorial Pacific: an isotopic study
The equatorial Pacific Ocean is a region of contrasts: in the west, rivers and sediments supply large amounts of iron, while in the east, iron deficiency limits the growth of phytoplankton…
Comprehensive inverse model constrains the application of beryllium-7 as a deposition tracer
Measurements of beryllium-7 activity in surface waters provide a promising approach for quantifying the deposition of aerosol-bound elements at the ocean surface…
When cadmium faces the Black Sea contrasting environment
Dickson and his colleagues investigated the fate of cadmium in the Black Sea using its concentration and isotopic composition…