Gu and colleagues explore the temporal variation of iron over 11 cruises along the Peruvian shelf.
Pacific Ocean
Aluminium, manganese, iron, cobalt, and lead display contrasting fate along north–south and east–west sections in the North Pacific Ocean
Chan et co-authors provide a comprehensive view of trace metal distribution in the subarctic Pacific Ocean.
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.
Lead isotopes allow tracing the processes injecting of anthropogenic lead in deep waters
This work follows the penetration of anthropogenic lead (traced using its isotopic signatures) into the pristine deep Pacific Ocean.
Using machine learning to accurately simulate the oceanic barium distribution
Mete and colleagues used machine learning to predict the global distribution of oceanic barium…
First direct measurement of actinium (but also radium and thorium) distribution coefficient values in marine sediments
Actinium-227, radium-226 and radium-228 profiles in sediments were measured and modeled at 5 stations in the Northeast Pacific…
Pulling back the veil on reversible scavenging of lead
This work further contains the role that reversible scavenging may play in the cycling of lead in the ocean, an ever-evolving global experiment where lead contamination can be tracked in real-time.
The North Pacific Ocean, a key actor for the zinc oceanic cycle
Sieber and his colleagues lift the veil on some of the mechanisms that control the behavior of zinc in the Pacific Ocean, and more globally.
Disentangling what controls the cadmium distribution in the Pacific Ocean
Sieber and his colleagues established the distribution of dissolved cadmium concentrations and isotopes in a section extending from Alaska to Tahiti.
Different fates of four poorly soluble trace elements in the Pacific Ocean
Zheng and co-authors present the full-depth distributions of aluminum, lead, manganese and copper in the western South Pacific.
The Tonga arc, an iron boundary in the South West Pacific Ocean
As part of the TONGA GEOTRACES process study, Tilliette and colleagues identified high dissolved iron concentrations in the west of the Tonga arc.
Dominance of the benthic flux of rare earth elements on continental shelves
Deng and his colleagues focus on one of the largest land–ocean interfaces in Asia, the Changjiang River–East China Sea system.
High resolution of dissolved and particulate barium distributions in the Atlantic and Pacific Ocean reveal the importance of the margin sources on the oceanic barium budget
Rahman and co-workers performed intensive samplings and analyses of barium along the GEOTRACES GA03 and GP16 transects.
High resolution of dissolved and particulate barium distributions in the Atlantic and Pacific Ocean reveal the importance of the margin sources on the oceanic Ba budget
Rahman and co-workers performed intensive samplings and analyses of barium along the GEOTRACES GA03 and GP16 transects.
Distributions, boundary inputs, and scavenging processes of trace metals in the East Sea (Japan Sea)
Seo and his colleagues show pronounced atmospheric and shelf inputs of trace elements in the Japan Sea.
New trace metal data in the Seas of Japan and Okhotsk
Nakaguchi and colleagues realized full-depth and section distributions of traces metals collected from the Seas of Japan and Okhotsk.
A better insight into parameters that control particle flux in the ocean
Xiang and co-workers compiled full ocean-depth size-fractionated particle data from three recent U.S. GEOTRACES cruises.
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.
Anthropogenic aerosol has become a dominant source of zinc in the deep water of the Northern South China Sea
Liao and colleagues determined zinc concentrations and isotope compositions in sinking particles collected in the Northern South China Sea…
An updated global ocean chromium biogeochemical cycle
Janssen and co-authors present an exhaustive compilation of ocean chromium data…
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…
First direct measurements of luxury iron uptake in natural phytoplankton communities: surprising results!
This study demonstrates the importance of biology and ecology to understanding iron biogeochemistry.
Uranium-238 data and physical transports off the Peruvian coast are questioning the thorium-uranium export model
Authors determined insignificant advective and diffusive thorium-234 fluxes at 25 stations in the Peruvian oxygen minimum zone
Surface water trace element and isotope data challenge dust flux models
Using measurements of dissolved and particulate thorium-230 and thorium-232 along a section across the South Pacific, authors estimated the dust flux over this remote area
The power of combining geochemical tracer data with direct current measurements
Learn about new discoveries done combining seawater Rare Earth Elements concentrations and direct physical oceanographic observations
A new model simulates the speciation and dispersion of hydrothermal iron
Roshan and collaborators present new observations of dissolved iron and its physical speciation in the South Pacific
Mechanisms driving biological CO2 drawdown in the Subarctic Pacific unraveled
Nishioka and co-authors compiled comprehensive data sets of iron and macronutrients covering the whole subarctic Pacific…
Loihi Seamount, hydrothermal Helium-3 and dissolved iron sources and their dispersion within the Pacific Ocean
As part of the GEOTRACES cruise GP15, Jenkins and co-workers (2020, see reference below) observed large water column anomalies in helium isotopes and trace metal concentrations above the Loihi Seamount […]
Oceanic Margins as sources of lithogenic particulate and dissolved iron in the North Pacific Ocean
Three GEOTRACES Japanese cruises on board the R/V Hakuho Maru allowed establishing basin-scale and full-depth sectional distributions of total dissolvable iron (tdFe), dissolved iron (dFe), and labile particulate iron (lpFe=tdFe […]
Rare Earth distribution and pattern anomalies in the Solomon Sea
The Solomon Sea is surrounded by high and intensively weathered islands. Its complex topography and hydrography make this area a potential source of trace elements to the waters flowing through […]