New research is now shining a light on mercury cycling on the Arctic shelf.
Sep / 15 / 2022
Cycles
After the Mediterranean Sea one, don’t miss the Arctic present-day total mercury mass balance!
They provide an updated mass balance of the Arctic land and ocean mercury cycle.
Apr / 12 / 2022
Mercury stable isotopes constrain atmospheric pathways to the ocean
The study’s results hold promise that the implementation of anti-pollution measures under the Minamata Convention will likely result in a faster decrease of oceanic mercury levels than previously thought.
Nov / 18 / 2021
Constraining Oceanic Copper Cycling through Artificial Intelligence and Ocean Circulation Inverse Model
Using available observations of dissolved copper, artificial neural networks, and an ocean circulation inverse model, authors calculated a global estimate of the 3-dimensional distribution and cycling of dissolved copper in the ocean.
Jan / 15 / 2021
The biogeochemical ventures of dissolved iron and manganese across the Arctic Ocean
The spatial distributions and biogeochemical cycling of dissolved Fe (dFe) and dissolved manganese (dMn) across the Arctic Ocean were established during summer and fall 2015. The Canadian GEOTRACES transect extended […]
May / 15 / 2020
Artificial intelligence helps investigate the oceanic zinc cycle
What explains the hitherto mysterious correlation between zinc (Zn) and silicon, an element not involved in the Zn cycle? Roshan and co-workers (2018, see reference below) used an artificial neural […]
Jan / 24 / 2019
Barium isotope measurements help constraining the oceanic barium cycle
Hsieh and Henderson (2017, see reference below) propose a compilation of the oceanic barium (Ba) concentrations together with its isotopic profiles measured so far. Their review covers the main oceanic […]
Oct / 19 / 2017
Changing the paradigm on the oceanic iron cycle
Tagliabue and co-workers (2017, see reference below) discuss an extensive review on the recent findings on iron (Fe) cycle in the ocean. They figure out clearly that: Fe is a […]
Mar / 17 / 2017
The coupled zinc-silicon cycle paradox illuminated
The strong similarities between zinc (Zn) and silicon (Si) vertical profiles have led many studies to suggest the uptake of Zn in diatom frustules, followed by simultaneous remineralisation at depth. […]
Feb / 08 / 2017
Amazingly detailed compilation of the silicon cycle, with an emphasis on the oceanic silicon isotope budget
Although this article is not resulting from GEOTRACES activity, its content is definitely GEOTRACES relevant. The authors constructed an up-to-date compilation of the continental silicon (Si) cycle, including the fate […]
May / 09 / 2016
New insights into global barium cycling from the first barium isotope data for seawater
A new method developed by Horner and co-workers (2015, see reference below) allows for the determination of dissolved barium (Ba) isotopic compositions in seawater using nanogram quantities of Ba. The […]
Nov / 16 / 2015
What controls the copper isotopic composition in oceanic waters?
Takano and co-workers (2014, see reference below) strongly suggest that the isotopic composition of dissolved copper (δ65Cu) in surface seawater is mainly controlled by supply from rivers, the atmosphere and […]
Dec / 19 / 2014
Field data constrain ocean mercury budget
Thanks to recent measurements during several oceanographic expeditions, among them GEOTRACES cruises, estimates of the total amount and spatial distribution of anthropogenic mercury in the global ocean were substantially improved. […]
Sep / 08 / 2014