Geochemical characteristics of stable isotopes from hydrothermal chimneys in the Mariana Trough, West Pacific Ocean |
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| Authors: | Wu Shi-ying Zhang Dao-jian Wang Kui-yang Chen Cheng-ye Bai Li-ming |
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| Institution: | (1) SOA, First Institute of Oceanography, 266003 Qingdao, China;(2) Department of Geology, Beijing University, 100871 Beijing, China |
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| Abstract: | The determination of the stable isotopes, δD, δ18 and δ30, values from hydrothermal chimneys in the Mariana Trough, the West Pacific, indicated that the pure siliceous chimneys with
gentle data variation were formed in low temperature environment. It reflects that the sea-floor hydrothermal activity of
the Mariana Trough is primarily low-to-medium temperature hydrothermal eruption, and those chimneys with strong data variation
and containing pyrite were formed in higher temperature environment.
Project 49876016 supported by NSFC. |
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| Keywords: | Mariana Trough stable isotope geochemistry hydrothermal chimney genetic ty |
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