Other
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001e%26psl.193..371g&link_type=abstract
Earth and Planetary Science Letters, Volume 193, Issue 3-4, p. 371-379.
Other
9
Scientific paper
The chemical characteristics of hydrothermal fluids in the Indian Ocean have been revealed for the first time. A hydrothermal field (called the Kairei field), including active black smoker chimneys, was discovered by ROV Kaiko dives at 25°19.17'S, 70°02.40'E (~2450 m depth) on the southwestern flank of an off-axis knoll located ~15 miles north of the Rodriguez Triple Junction, Central Indian Ridge, after detailed tow-yo surveys of the hydrothermal plume distribution. The temperature of the fluid expelled from the most active chimney was almost stable (359-360°C) throughout three successive days of fluid sampling. The endmember fluid has a chemical composition similar to the hydrothermal fluids sampled from sediment-starved mid-ocean ridges in the Pacific and the Atlantic oceans, suggesting typical interactions between hot fluid and mid-ocean ridge basalts in the subseafloor reaction zone.
Chiba Hitoshi
Gamo Toshitaka
Hashimoto Jun
Ishibashi Jun-Ichiro
Kataoka Satoshi
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