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Sulfur isotopic study of ore minerals and altered host rocks of Neogene–Quaternary overprinting hydrothermal systems in the Toyoha–Muine area, southwest Hokkaido, Japan
sulfur isotopes overprinting hydrothermal systems ore minerals alteration Toyoha–Muine
2017/4/11
Sulfur isotopes in vein sulfides (galena, sphalerite, and pyrite) and pyrite sulfur derived from overprinting hydrothermal
systems in the altered volcanic host rocks of the Toyoha–Muine area are dete...
Kaolinite Synthesis: The Role of the Si/Al and (Alkali)/(H +) Ratio in Hydrothermal Systems
Kaolinite Synthesis Hydrothermal Systems Ratio
2012/2/14
The Si/Al ratio of an hydrothermal system plays an important role in kaolinite synthesis. If the atomic Si/Al ratio of a system is greater than 2·0, kaolinite will disappear at 345 ± 5°C and 2 kbars w...