Trace metal effluxes from Peruvian shelf sediments
Liu and co-authors compared four methods to estimate dissolved iron fluxes from Peruvian shelf sediments, revealing large variability.
Export Fluxes
First direct measurement of actinium (but also radium and thorium) distribution coefficient values in marine sediments
Actinium-227, radium-226 and radium-228 profiles in sediments were measured and modeled at 5 stations in the Northeast Pacific…
Greenland’s floating ice tongues, sources of dissolved lead to the Arctic
Using helium and neon as tracers for subglacial meltwater, Krisch and colleagues found that subglacial discharge is a source of dissolved lead.
Confrontation of two models to constrain the hydrothermal iron contribution to the Southern Ocean export production
Tagliabue and his co-workers compare the hydrothermal dissolved iron simulated by both models.
Uranium-238 data and physical transports off the Peruvian coast are questioning the thorium-uranium export model
Authors determined insignificant advective and diffusive thorium-234 fluxes at 25 stations in the Peruvian oxygen minimum zone
Important spatial variation of the Particulate Organic Carbon export along the GEOVIDE section in the North Atlantic Ocean
Based on the thorium-234 (234Th) isotopes and the Particulate Organic Carbon/Thorium (POC/Th) ratios measured in small and large particles collected at 11 stations along the GEOVIDE section (GA01) using in […]
High particulate organic carbon export in the Arabian Sea
In the framework of Indian GEOTRACES cruise GI02, high-resolution sampling was carried out in the Arabian Sea and the Indian Ocean during April–May 2014. The first 234Th-based carbon export flux […]