Chemical and Isotopic Compositions of Hydrothermal Fluids at Snail, Archaean, Pika, and Urashima Sites in the Southern Mariana Trough.
Chemical and Isotopic Compositions of Hydrothermal Fluids at Snail, Archaean, Pika, and Urashima Sites in the Southern Mariana Trough.
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南马里亚纳海槽蜗牛、太古代、鼠兔和浦岛遗址热液的化学和同位素组成。
DOI：
10.1007/978-4-431-54865-2_45
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
and K. Nakamura
中科院分区：
文献类型：
--
作者：
Toki;T.;J. Ishibashi;T. Noguchi;M. Tawata;U. Tsunogai;T. Yamanaka;and K. Nakamura
从南马里亚纳海槽弧后扩张中心周围的5个热液场采集了热液流体，进行了化学和同位素分析。Yamanaka遗址被解释为无活动，因此我们报告了蜗牛、太古宙、鼠兔和浦岛遗址的结果。略低的pH值和负碱度表明岩浆挥发物的少量输入，由高浓度的co2支持。因此，相对于MOR热液，低pH会导致热液中富铁。
Hydrothermal fluids were collected from five hydrothermal fields around the Southern Mariana Trough backarc spreading center for chemical and isotopic analyses. Yamanaka site was interpreted as inactive, so we present results from Snail, Archaean, Pika and Urashima sites. The slightly low pH and negative alkalinity suggests a little bit input of magmatic volatiles, supported by high CO2concentrations. Consequently low pH would lead to the hydrothermal fluids rich in Fe compared to the MOR hydrothermal fluids.