Hydrothermal venting impacts the global-scale biogeochemical cycles of many trace metals and their isotopes. Processes in hydrothermal plumes regulate the dispersal of vent-derived metals and may vary in response to differences in the geologic setting of vent fields and/or the geochemistry of the overlying ocean water. Here we present results of analyses of dissolved Fe and Cr concentrations, and dissolved Fe isotope (δ56Fe) and Cr isotope (δ53Cr) distributions, in seawater samples collected from above TAG and Rainbow vent sites on the Mid-Atlantic Ridge during the GEOTRACES GA13 cruise. We show that profiles of dissolved Fe and Cr isotopes through the near-field hydrothermal plumes are the mirror image of each other. Oxidation of Fe(II) an...
This thesis investigates the role of submarine hydrothermal vents in the global marine Fe budget. Wh...
Hydrothermal chromium (Cr) cycling contributes to marine Cr inventories and their Cr isotopic compos...
International audienceHydrothermal activity occurs in all ocean basins, releasing high concentration...
Hydrothermal venting impacts the global-scale biogeochemical cycles of many trace metals and their i...
International audienceIt is now clear that, in some parts of the ocean, inputs of hydrothermal iron ...
The Rainbow hydrothermal vent site, which is the largest known point source for dissolved Fe deliver...
Fe isotopes are a potential tool for tracing the biogeochemical redox cycle of Fe in the ocean. Spec...
While gross hydrothermal fluxes entering the ocean are known to be significant, much remains unknown...
Iron is a scarce but essential micronutrient in the oceans that limits primary productivity in many ...
This thesis examines the nature of trace metal cycling in hydrothermal plumes, which have only recen...
Hydrothermal discharge is one of multiple Fe sources contributing to the marine dissolved Fe budget,...
In recent years, iron (Fe) has been recognized as one of the key elements in Earth’s biogeochemical ...
We report the analysis of 18 large volume (500-1500 L) in situ filtered samples of particulate mater...
We have conducted a study of hydrothermal plumes overlying the Mid-Atlantic Ridge near 5° S to inves...
This thesis investigates the role of submarine hydrothermal vents in the global marine Fe budget. Wh...
Hydrothermal chromium (Cr) cycling contributes to marine Cr inventories and their Cr isotopic compos...
International audienceHydrothermal activity occurs in all ocean basins, releasing high concentration...
Hydrothermal venting impacts the global-scale biogeochemical cycles of many trace metals and their i...
International audienceIt is now clear that, in some parts of the ocean, inputs of hydrothermal iron ...
The Rainbow hydrothermal vent site, which is the largest known point source for dissolved Fe deliver...
Fe isotopes are a potential tool for tracing the biogeochemical redox cycle of Fe in the ocean. Spec...
While gross hydrothermal fluxes entering the ocean are known to be significant, much remains unknown...
Iron is a scarce but essential micronutrient in the oceans that limits primary productivity in many ...
This thesis examines the nature of trace metal cycling in hydrothermal plumes, which have only recen...
Hydrothermal discharge is one of multiple Fe sources contributing to the marine dissolved Fe budget,...
In recent years, iron (Fe) has been recognized as one of the key elements in Earth’s biogeochemical ...
We report the analysis of 18 large volume (500-1500 L) in situ filtered samples of particulate mater...
We have conducted a study of hydrothermal plumes overlying the Mid-Atlantic Ridge near 5° S to inves...
This thesis investigates the role of submarine hydrothermal vents in the global marine Fe budget. Wh...
Hydrothermal chromium (Cr) cycling contributes to marine Cr inventories and their Cr isotopic compos...
International audienceHydrothermal activity occurs in all ocean basins, releasing high concentration...