从分子有机地球化学观点探讨我国某大型自然硫矿床的成因
INITIAL STUDY ON GENESIS OF A BIG NATURAL SULPHUR DEPOSIT IN CHINA BY MEANS OF MOLECULAR ORGANIC GEOCHEMISTRY
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摘要: 深入研究了与朱家庄自然硫矿共生之硫磺沥青的生物标志物组成,检出了两个新化合物——GX与C33含硫藿烷。分子有机地化特征表明,硫的再聚集与成岩早期阶段膏盐相生油岩相中有机质的还原作用和细菌活动有关,自然硫矿可能属成岩之层控矿床。Abstract: Biological marker composition of sulphur-asphalt associated with Chujiazhuang natural sulphur deposit, in Shandong Province was studied in detail by means of GC-MS technique. Two unusual compounds were found, including GX and C33 thiohopane. It is indicated by the peculiarities of biological marker composition of the sulphur-asphalt that the re-concentration of sulphur was related to the reduction of organic matter and activity of bacteria in hypersaline lake sediments during the early stage of diagcncsis. The natural sulphur deposit is considered to be a stratum-bound deposit of diagenetic origin.
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