热泉热液金矿化中嗜热微生物──有机质的地球化学作用

THE GEOCHEMICAL PROCESS OF THERMOPHILE MICROBE- ORGANIC MATTER DURING THE HYDROTHERMAL GOLD MINERALIZATION OF HOT SPRING

本文主要通过对热泉热液金成矿过程中的热泉水化学成分和组分的分析，得出泉水中金与氮磷硫、氟硅碳两组组分有很好的相关性。嗜热硫酸盐还原菌能使［Ａｕ（ＨＳ）２］－和［Ａｕ（Ｓ２Ｏ３）２］３－都氧化还原成硫化物，从而使金由热水溶液中沉淀。热泉沉积软泥的有机质中的含硫氨基酸、含硫芳烃也起到了一定的聚金作用。

On the basis of research on the hot spring water chemical components and constituents during the gold mineralization in the hot spring,we find there is a good relation between the two constituents(N,P,S;F,Si,C) and Au in hot spring water.Thermophile sulfate reducting bacteria can make [Au(HS) 2] - and [Au(S 2O 3) 2] 3- oxidation reduction sulfide,thus the gold will be deposited from hydrothermal solutions. Sulfur bearing amino acid and aromatics within organic matter of hot spring sedimental mud also play a role for gold congregation.