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- Title
THE "NET" IMPACT OF HYDROTHERMAL VENTING ON OCEANIC ELEMENTAL INVENTORIES.
- Authors
Fitzsimmons, Jessica N.; Steffen, Janelle M.
- Abstract
Hydrothermal vents serve as a primary interface between the cold deep ocean and the warm oceanic crust. While early research showed that seawater-rock interactions add to or remove elements from seawater during the generation of hydro-thermal fluids, consideration of these fluid fluxes alone does not relay the total impact that hydrothermal systems have on seawater geochemistry. In addition, hydrothermal plumes, areas where hydrothermal fluids mix with ocean waters, are host to a range of particle precipitation and scavenging reactions that further modify gross hydro-thermal fluid fluxes to define the total "net" hydrothermal impact on oceanic inventories. Here, we review the major discoveries made by the international GEOTRACES program regarding the geochemical transformations occurring within hydrothermal plumes. We classify each element into one of five categories based on its behavior in hydrothermal plumes, a spectrum spanning the geochemical mass balance between net hydrothermal source fluxes and net hydrothermal plume scavenging sinks. Overall, we celebrate the role that GEOTRACES has played in defining the extent and dynamics of hydrothermal plume geochemistry, which is a crucial lever for determining global hydrothermal impacts.
- Subjects
HYDROTHERMAL vents; PRECIPITATION scavenging; PRECIPITATION (Chemistry); OCEANIC crust; INVENTORIES; GEOCHEMISTRY
- Publication
Oceanography, 2024, Vol 37, Issue 2, p102
- ISSN
1042-8275
- Publication type
Article
- DOI
10.5670/oceanog.2024.421