Transport of gold by H_2S-rich oil field waters, and the origin of Carlin-type deposits

作     者：Christopher H. Gammons Diane Wolfgram 

作者机构：Montana Tech of the University of Montana Dept. of Geological Engineering Butte MT 59701 USA 

出 版 物：《Chinese Science Bulletin》 (科学通报(英文版))

年 卷 期：1999年第44卷第S2期

页      面：161-162页

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

主　　题：transpore gold oil field water origin Carlin-type deposit. 

摘      要：DURING the course of hydrocarbon evolution and migration, large quantities of H 2S are often *** process is most familiar to petroleum geologists, and may lead to forming of natural gas deposits. Themost important H2S-forming reactions are bacterial sulfate reduction （BSR）, and thermochemical sulfatereduction （TSR）. Whereas BSR is restricted to relatively low temperature （150℃） and greater depth of burial. BecauseH2S is highly soluble in water, any groundwater in the vicinity of a TSR-active zone will also become enriched in H2S. The central hypothesis of this paper is that hot groundwaters associated with TSR in carbonate terrains acquire the ability to transport gold and other elements （e.g. Ag, Hg, As, Sb, Tl）