A far-field hydrothermal plume from Loihi Seamount
Lupton JE. 1996. A far-field hydrothermal plume from Loihi Seamount. Science. 272(5264):976-979
An extensive helium plume in the north central Pacific emanates from Loihi Seamount on the flanks of Hawaii. The maximum helium signal is found at a depth of about 1100 meters, the same depth as the near-field plume directly above Loihi Seamount. Although this helium plume is strongest near Hawaii, where the 3He/4He ratio at a depth of about 1100 meters reaches values 28 percent above the atmospheric ratio, it can be detected quite clearly at latitude 24°N, over 400 kilometers to the north. Excess 3He is also present on the same isopycnal between 15°N and 20°N at 135°W, some 2000 kilometers east of the Hawaiian islands.
- Type
- Journal Article
- Authors
- Lupton, John
- Units
- HAVO
- Keywords
- Chemical Analysis, Geochemistry, Helium (He), Hydrothermal plume, Loihi, Map, Seawater