Testament of the efficiency of environmental policies
Bridgestock and his co-workers reveal for the first time that natural lead can be detected again in the surface water of the North Atlantic.
Science
This section presents the GEOTRACES scientific activities.
Dealing with the chemical speciation of the elements in the different oceanic realms
First paper of the SCOR working group on modelling chemical speciation in seawater (WG145) The form in which a trace element or other component of seawater is present, and its […]
Lithogenic influence from the Hawaiian Islands detectable up to Station ALOHA surface waters
By coupling neodymium (Nd) and radium (Ra) isotopes and Rare Earth Element (REE) signals, Henning Fröllje and co-workers (2016, see reference below) show that the coastal Hawaiian waters are affected […]
Inference about rates of thorium and particle cycling in the ocean water column
Insoluble thorium (Th) isotopes are particle reactive while their radioactive parents are fairly soluble. This difference of behaviour has allowed chemical oceanographers to use Th isotopes to develop understanding about […]
Hydrothermalism: a major contributor to the oceanic inventory of dissolved zinc
High-quality dataset of dissolved zinc (Zn) from the US GEOTRACES EPZT cruise (GP16 section) allows Roshan and co-workers (2016, see reference below) to revisit the oceanic budget of dissolved Zn. […]
Decreasing of the industrial lead contamination in the Amundsen Sea area
Since the phasing-out of leaded automobile gasoline, the imprint of industrial lead is decreasing everywhere.
Scandium: a new oceanic tracer with surprising properties
The first modern data set of dissolved scandium (Sc) in the open ocean is presented. Thanks to three GEOTRACES cruises, its distribution is compared between the different oceanic basins. This […]
Gadolimium, a Rare Earth Element becoming a human contaminant and tracer of wastewater discharge in the ocean
Gadolinium (Gd) is increasingly used in contrast agents for magnetic resonance imaging. It is therefore released in the wastes of hospitals and research centres. As a consequence, Hatje and collaborators […]
Onboard analysis of dissolved zinc everywhere in the open ocean with a Lab on Valve (LOV) system of the size of a bottle of wine is becoming possible
Thanks to the work of Maxime Grand and collaborators (2016, see reference below), it is now possible to analyse dissolved zinc (DZn) on board, from any kind of seawater using […]