Hydrogen and Oxygen Isotope Fractionation Mechanism in the Hydrothermal System and Its Geologic Significance

被引：0
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作者：
Chen Zhensheng
Zhang Ligang Yichang Institute of Geology and Mineral Resources
机构：
来源：
Acta Geologica Sinica(English Edition) | 1992年 / 04期
关键词：
hydrothermal system; isotope fractionation mechanism; water/rock exchnage; effective W/R ratio; evolutional model;
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摘要：
The geochemical behaviors of hydrogen and oxygen isotopes in the hydrothermal system and their inher-ent relationship with the water / rock exchange are discussed in this paper In addition to the temperature con-ditions, the effective W / R ratio is another factor controlling the changes in H and O isotope compositions ofthe altered rock and hydrothermal water. Besides, the application and geological significance of the water-rockexchange theory are also discussed in the light of the H and O isotope compositions and their variation charac-teristics of the mineralizing hydrothermal water and altered rocks from several mineral deposits. Finally, abrief evolutional model of H and O istotope compositions of meteoric and magmatic hydrothermal waters in ahydrothermal system is given.
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页码：397 / 409
页数：13
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