Science

This section presents the GEOTRACES scientific activities.

 

Short-Term Variability of Dissolved Rare Earth Elements and Neodymium Isotopes in the Entire Water Column of the Panama Basin

Patricia Grasse and co-workers (2017, see reference below) present new dissolved neodymium isotope compositions (εNd) and rare earth element (REE) concentrations from the Panama Basin. REE concentrations peak at the […]

05.10.2017

Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese

Marco van Hulten and co-workers (2017, see reference below) ran a global ocean model to understand manganese (Mn), a biologically essential element. The model shows that: (i) in the deep […]

29.06.2017

Shelf sediment dissolved iron source via non-reductive dissolution in the Gulf of Alaska

Crusius and co-workers (2017, see reference below), reveal temporal and spatial variability in the sources of iron (Fe) to the northern Gulf of Alaska, based on data from cruises from […]

12.06.2017

Surprising cadmium isotope results north of the Subantarctic Front in the South West Atlantic Ocean

Xie and co-workers (2017, see reference below) report cadmium (Cd) isotopic compositions from five stations and 15 tow-Fish surface waters from 50ºS to the equator along GEOTRACES GA02 Leg 3. […]

01.06.2017

Low iron sulfide precipitation rate in hydrothermal fluids during the early stage of mixing

Waeles and co-authors (2017, see reference below) report for the first time on the dissolved-particulate partition of iron (Fe) after in situ filtration at the early stage of mixing of […]

29.05.2017

Complex cobalt story in the Mediterranean Sea

Dulaquais and co-authors (2017, see reference below) propose the first comprehensive study of cobalt behaviour in the Mediterranean Sea, work conducted in the framework of MedBlack GEOTRACES cruise (GA04N). They […]

24.04.2017

A new method for simultaneous analysis of nickel, copper and zinc isotopes in seawater

Takano and co-workers (2017, see reference below) have developed a new method to determine nickel (Ni), copper (Cu) and zinc (Zn) isotopes in seawater. This method is very simple and […]

18.04.2017

GEOTRACES intercalibration of the stable silicon isotope composition of dissolved silicic acid in seawater

Dissolved silicon (Si) is a major oceanic nutrient and variations of its stable isotope values are reflecting the intensity of surface primary production. As for other isotopes, agreement between the […]

14.04.2017

Important external dissolved iron inputs, HNLC water formation and strong biological seasonality explained in the North Pacific Ocean

Subarctic Pacific is known as High Nutrient, Low Chlorophyll (HNLC) area, where phytoplankton growth is limited by dissolved iron (DFe) availability. The biological activity in the surface waters is also […]

13.04.2017

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