Chemical characteristics of newly discovered black smoker fluids and associated hydrothermal plumes at the Rodriguez Triple Junction, Central Indian Ridge
Chemical characteristics of newly discovered black smoker fluids and associated hydrothermal plumes at the Rodriguez Triple Junction, Central Indian Ridge
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DOI：
10.1016/s0012-821x(01)00511-8
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发表时间：
2001-12-15
影响因子：
5.3
通讯作者：
Shinjo, R
中科院分区：
文献类型：
--
作者：
Gamo, T;Chiba, H;Shinjo, R
首次揭示了印度洋热液流体的化学特征。在对热液羽流分布进行详细的双向调查后，ROV Kaiko潜水在25度19.17′s， 70度02.40′e（类似于深度2450）的离轴小丘的西南侧发现了一个热液场（称为Kairei场），包括活跃的黑烟烟囱。该小丘位于中印度脊罗德里格兹三重结以北15英里处。在连续三天的流体取样中，从最活跃的烟囱排出的流体温度几乎是稳定的（359-360度）。端部流体的化学成分与从太平洋和大西洋中缺乏沉积物的洋中脊取样的热液流体相似，表明热流体与洋中脊玄武岩在海底反应带的典型相互作用。(C) 2001 Elsevier Science B.V.版权所有
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 degrees 19.17'S, 70 degrees 02.40'E ( similar to 2450 to depth) on the southwestern flank of an off-axis knoll located similar to 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 degreesC) 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. (C) 2001 Elsevier Science B.V. All rights reserved.