Find below a summary of main GEOTRACES findings and products on thorium research:
Atlas
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Atlantic Ocean:
Arctic Ocean:
Pacific Ocean:
3D scenes showing the distribution of dissolved iron in the Atlantic, the Pacific and the Arctic Oceans. In warm colours (red, orange, etc.) you can view high concentrations of dissolved thorium.
Data
Data is available to download after registration here: https://geotraces.webodv.awi.de/login
Discoveries include:
Below you can find a list of science highlights of main GEOTRACES discoveries on thorium research:
Science Highlights
The most important thorium-234 disequilibrium compilation you ever saw
Elena Ceballos-Romero and her colleagues propose a comprehensive global oceanic compilation of Thorium-234 measurements.
Science Highlights
Intense benthic nepheloid layers in the Northwest Atlantic Ocean lead to unexpected distributions of dissolved and particulate thorium-230 and protactinium-231
Chen and colleagues explore the behaviour of thorium-230 and protactinium-231 in the benthic nepheloid layers…
Science Highlights
A new and more quantitative atlas of the deep-sea burial fluxes of major and trace elements
Among other findings, authors find that the new opal flux is roughly a factor of two increase over previous estimates having important implications for the global silicon cycle.
Science Highlights
Variable dissolution rates and fates of lithogenic tracers at the air-sea interface
Roy-Barman and co-authors established the dissolution rates from Saharan dust reaching Mediterranean seawater.
Science Highlights
Thorium-Protactinium fate across the tropical Atlantic Ocean: what reveals the water column-sediment coupling
Twenty seawater profiles and twenty core-top 231-protactinium and 230-thorium analyses were realised by Ng and colleagues along five depth transects across the northern tropical Atlantic open ocean.
Science Highlights
Isopycnal mixing controls protactinium and thorium distributions in the Pacific Southern Ocean
Pavia and co-workers determined the physical and chemical speciation as well as the vertical distribution of Protactinium-231 and Thorium-230 at 12 stations across the Southern Pacific Antarctic Circumpolar Current…
List of publications
Scroll down to view the list of GEOTRACES publications on dissolved thorium: