TY - JOUR
T1 - Fluctuation of chemical compositions of the phase-separated hydrothermal fluid from the North Fiji Basin Ridge
AU - Ishibashi, Jun ichiro
AU - Grimaud, Daniel
AU - Nojiri, Yukihiro
AU - Auzende, Jean Marie
AU - Urabe, Tetsuro
N1 - Funding Information:
We are grateful to K. Sakakura, T. Fukui and the Shinka6i 500 operating team, as well as captain and crew of the tendership Yokosukaf or their skillful cooperation. We also thank Dr. T. Gamo for his help in CO2 analysis at the Ocean Research Institute, University of Tokyo. This research was conducted as a part of the Joint Research Program STARMER funded by the STA of Japan and IFREMER of France. The manuscript was greatly improved by the constructive comments of anonymous reviewers.
PY - 1994/1
Y1 - 1994/1
N2 - On the central ridge of the North Fiji Basin (southwest Pacific), hydrothermal activities were located in 1989. It was the second discovery of the hydrothermal fluid undergo phase separation. During a dive mission of Shinkai 6500 in 1991, we revisited the hydrothermal area and collected fluid samples from the same anhydrite chimney. Fluid composition of the end member shows no significant changes during this two years. Other fluid ventings 150 m apart show similar chemistry, suggesting that the phase separation and segregation processes occur throughout the hydrothermal area. Small fluctuation in chemical composition of the fluids from two sites is attributed to subseafloor fluid-rock interaction after the phase segregation.
AB - On the central ridge of the North Fiji Basin (southwest Pacific), hydrothermal activities were located in 1989. It was the second discovery of the hydrothermal fluid undergo phase separation. During a dive mission of Shinkai 6500 in 1991, we revisited the hydrothermal area and collected fluid samples from the same anhydrite chimney. Fluid composition of the end member shows no significant changes during this two years. Other fluid ventings 150 m apart show similar chemistry, suggesting that the phase separation and segregation processes occur throughout the hydrothermal area. Small fluctuation in chemical composition of the fluids from two sites is attributed to subseafloor fluid-rock interaction after the phase segregation.
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U2 - 10.1016/0025-3227(94)90177-5
DO - 10.1016/0025-3227(94)90177-5
M3 - Article
AN - SCOPUS:0028311892
SN - 0025-3227
VL - 116
SP - 215
EP - 226
JO - Marine Geology
JF - Marine Geology
IS - 1-2
ER -