Radium-224 and radium-223: powerful chronometers to estimate the residence time of Amazon waters on the Brazilian continental shelf
In this study, radium is used as a tracer for the waters of the Amazon that mix with those of the Atlantic Ocean.
Science
This section presents the GEOTRACES scientific activities.
From Alaska to Tahiti, the distribution and bulk deposition fluxes of trace elements
A suite of trace element was measured in aerosols collected in the North and equatorial Pacific.
In situ detection of Particulate Inorganic Carbon using optical sensors
They have developed optical sensors for particulate inorganic carbon concentration.
When titanium is not always behaving as a lithogenic conservative tracer: an Amazon estuary story
They established the distribution of titanium in Amazon and Pará rivers and their related plume during the high discharge period.
Central Arctic fertilization by the Transpolar Drift
Their findings highlight the importance of the Transpolar Drift in delivering dissolved silica and iron to feed low diatom primary production in the central Arctic Ocean.
Dust deposition rates extracted from a data-assimilation model of the aluminium oceanic cycle
Xu and Weber developed a data-assimilation model of the aluminum oceanic cycle.
Intense benthic nepheloid layers in the Northwest Atlantic Ocean lead to unexpected distributions of dissolved and particulate thorium-230 and protactinium-231
Chen and colleagues explore the behaviour of thorium-230 and protactinium-231 in the benthic nepheloid layers…
Specific features characterize the dissolved iron distribution in the North Western Indian Ocean
Venkatesh Chinni and Sunil Kumar Singh propose dissolved iron profiles along two meridional transects realized during spring and fall seasons between the Arabian Sea and the sub-tropical western Indian Ocean…
Quantifying the weathered fluxes to the ocean is far from over: the overlooked role of rock coast erosion
This study reveals that cliff derived sediment supply is only three times less than the solid discharge of rivers for Europe.