When covariance of trace metals and prokaryotic taxa are tagging water masses (Southern Indian Ocean)
Zhang and colleagues investigated the potential reciprocal links between diverse prokaryotic taxa and concentrations of trace elements.
Multiple TEIs
Deep-sea mining, dewatering waste, accidental plumes and their potential consequences on trace metal fates in the North Pacific Ocean
Xiang and his colleagues conducted laboratory incubation experiments that simulate mining discharge into anoxic waters…
Trace metal fluxes of cadmium, copper, lead and zinc from the Congo River into the South Atlantic Ocean are supplemented by atmospheric inputs
Liu and colleagues show that rainfall augments some fluxes of trace metals from the Congo River.
Surprise in the Gulf of Aqaba: intense dust inputs are not a source of trace metals to seawater!
Benaltabet and his colleagues present a 2-year time series of several trace metal concentration profiles sampled at a daily resolution.
Are the pelagic clay-rich sediments a major source of elements to bottom-waters?
Steiner and colleagues analysed porewater and bulk sediment concentrations of multiple trace elements along a transect from Hawaii to Alaska.
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.
Icebergs as sources of trace metals to the ocean: which impact?
Earth’s Ice Sheets are known to release significant quantities of lithogenic particles into the ocean every year, but how does this material affect trace metal availability in the ocean?
Microbial trace metal trafficking on marine particles
This study provides evidence for the processing of nine particulate trace metals in multiple manners by diverse microbial communities.
Scavenging differentiates the distribution of cadmium, nickel, zinc and copper in the North Pacific Ocean
Zheng and co-authors observed sectional distributions of cadmium, nickel, zinc, and copper in the North Pacific Ocean during three GEOTRACES related cruises…
Surprising conservativity of trace metals along a costal embayment salinity gradient
Chen and co-workers analyzed an array of trace metals together with Rare Earth Elements in a salinity gradient in the Jinhae Bay, the largest semi-enclosed bay in South Korea…
Land inputs in the Arctic transported up to the North Pole
A new study found that freshwater runoff from rivers and continental shelf sediments are bringing significant quantities of carbon and trace elements into parts of the Arctic Ocean
A review constituting the half-way mark of GEOTRACES
After a brief reminder on the motivation and foundation processes of the international and ambitious programme GEOTRACES, Bob Anderson (2020, see reference below) proposes an overview of many results of […]
Welcome to the first Korean participation in GEOTRACES
Thanks to the newly launched research vessel (R/V) Isabu of the Korea Institute of Ocean Science and Technology (KIOST), and the acquisition of a contamination-free PRISTINE (NIOZ, NL) ultraclean seawater sampling system […]
About the decoupled fates of aluminium, manganese, cobalt and lead in the North Pacific Ocean
Did you know that each of these tracers could follow its own marine story, quite decoupled from the others?
On the optimal use of the seaFAST system
Do you wish to improve your recoveries, blanks or any other parameter of your seawater preconcentration system (seaFAST)? Or are you simply curious about it? Wuttig and co-workers (2019, see reference […]
All the bioactive elements are not affected by the land-ocean gradient of the atmospheric deposition along the Eastern Pacific Zonal Transect
Atmospheric dust is considered an important source of trace elements to the ocean. As part of the Eastern Pacific Zonal Transect GEOTRACES cruise (EPZT GP16), Buck and co-workers collected 17 […]
The residence times of trace elements determined in the surface Arctic Ocean during the 2015 US Arctic GEOTRACES expedition
Data collected during the US Arctic GEOTRACES expedition in 2015 (along GEOTRACES section GN01) were used to estimate the mean residence time of dissolved trace elements (iron-Fe, manganese-Mn, nickel-Ni, cadmium-Cd, […]
Has the role of atmospheric dust as a control on productivity in oligotrophic regions been overestimated?
Dust particles settling into the surface of open ocean environments are for years assumed to provide nutrients to these distant nutrient-limited areas. Torfstein and Kienast (2018, see reference below) present […]
Using ICPMS/MS to determine manganese, iron, nickel, copper, zinc, cadmium and lead concentrations on less than 40ml of seawater
Jackson and co-workers (2018, see reference below) first did a classical offline preconcentration of small seawater aliquots using a SeaFast system. More innovative is the use of a state of […]
Where, how and which trace elements are released from dust at the sea surface?
Alex Baker and Tim Jickells (2017, see reference below) propose to answer to this question thanks to analysis of aerosols collected in the framework of the Atlantic Meridional Transect (AMT). […]
Estimation of the trace element deposition fluxes to the Atlantic Ocean using two different methods
Shelley and co-workers (2016, see reference below) established that atmospheric deposition of trace elements was low throughout May-June 2014 along the GEOVIDE (GA01) cruise track in the North Atlantic Ocean. […]
Prokaryotic communities display elevated trace metal concentrations in Pacific oxygen deficient zone
Local particulate maxima in many bioactive trace metals (cadmium, Cd; cobalt, Co; nickel, Ni; vanadium, V; and zinc, Zn) are found in the upper Oxygen Deficient Zone (ODZ), coincident with […]
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 […]
GEOTRACES publishes the motivations and description of its first Intermediate Data Product
GEOTRACES proposes an article that describes its first integrated and quality controlled Intermediate Data Product 2014 (IDP2014): the digital data package and the eGEOTRACES electronic Atlas that provides section plots and […]
Two GEOTRACES works question the present ocean chemical elements budgets
New revelations on the land-ocean flux of chemical elements are presented in two different papers highlighting the value of the ocean isotopic data. Both works reveal that the present quantification […]
When direct mapping of diatoms reveals unexpected fate of trace metals in the twilight zone
Twining and co-authors (2014, see reference below) used synchrotron x-ray fluorescence mapping to measure macronutrients such phosphorus (P), sulphur (S), and silicon (Si), and also trace metals like iron (Fe), […]
GEOTRACES: Changing the way we explore ocean chemistry
Read about the experiences and lessons learned in the planning and implementation of GEOTRACES international programme in a recent paper published in Oceanography. Anderson and co-authors present an extraordinary synthesis of […]
New method for measuring simultaneously trace metal concentrations on a very small volume of seawater
An automated, on-line extraction, flow-injection inductively coupled plasma mass spectrometry (ICP-MS) method is presented by Lagerström and co-authors for simultaneous determination of manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), […]
GEOTRACES: Get the right data!
Measuring concentrations of many constituents at the nano- to picomolar levels in seawater is a difficult challenge, requiring thorough intercalibration between the different laboratories participating to the same programme. GEOTRACES is […]
Substantial intra-basin variation of the dissolved metal/phosphorus ratio in the different water masses of the Indian Ocean
The first simultaneous, full-depth, and basin-scale section-distribution of dissolved (D) aluminum (Al), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), cadmium (Cd), and lead (Pb) is […]