Experimental study of gold distribution in the algae-organic matter-fluid system |
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Authors: | Shucheng Xie Hongfu Yin Hongmei Wang Xiugao Zhou Jiamo Fu Guoying Sheng Huizhi Zhang Jialan Lu |
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Institution: | (1) School of Geosciences, China University of Geosciences, 430074 Wuhan, China;(2) Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640 Guangzhou, China |
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Abstract: | Conclusion Gold distribution and transformation in algae-organic matter-fluid system is very complicated. Gold is first concentrated
in kerogen after algae died. With the increase of dissolved organic matter owing to the increase of temperature and pressure,
part of gold simultaneously emigrates from kerogen to DOM. When DOM forms organic fluid and emigrates from the strata, gold
is simultaneously carried away by organic fluid in acidic condition, but by water in alkali condition. When the auriferous
fluid flows through carbonaceous strata, gold in fluid is unloaded by kerogen. Gold migration in the system, accompanied by
the evolution of algae-organic matter-fluid, provides the basic information of biometallogenetic evolution of gold. |
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Keywords: | gold algae organic matter fluid metallogenesis |
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