Abstract：Based on the geological characteritics of the deposit, some natures of organism in ore wall rocks have been studied. With the action of hydrothermal solution, the main mineral-forming components Au+ and Au3+ are reduced by organism, and the organism turns into CO2. Unaltered wall rocks, altered wall rocks of W mineralization and altered wall rocks of Au and/or Sb mineralizations have different forms of pyrolytic chromatogram, pyrolytic parameters and maturities of organism. In unaltered rocks, the maximun pyrolytic temperature, productivity index, degradating potentiality and hydrocarbon index of the organic matter are low, and the organic maturity is the lowest of the all rocks (in unmature region). The procession of the release of pyrolytic hydrocarbon is a sudden change;In W altered rocks,the organ ic carbon content is high, the type index is low, and the organic maturity is high (in the oil region). There are two times of unsudden release of pyrolytic hydrocarbon in the rock; In Au and/or Sb altered rocks, the maximum pyrolytic temperature, soluble content of hydrocarbon, yield index, effective carbon, degradation potentiality and hydrocarbon index are high, and the organic maturity is the highest (in the gas region). The pyrolytic hydrocarbon is, released unsuddenly.
邵靖邦, 王濮, 陈代璋. 湘西沃溪金锑钨矿床矿化蚀变带有机质特征初探[J]. 地质与资源, 1996, 5(3): 195-200.
Shao Jingbang, Wang Pu, Chen Daizhang. STUDIES OF ORGANISM ON MINERALIZED-ALTERATION ZONES OF Au-Sb-W DEPOSIT, WESTERN WOXI, HUNAN, CHINA. GEOLOGY AND RESOURCES, 1996, 5(3): 195-200.
1996, Vol. 5 
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