Lu Jialan, Zhuang Hanging, Liu Wenjun. The Experimental Studies on the Role of Organic Matter in Formation of Strata-bound Pb-Zn Deposit[J]. Acta Sedimentologica Sinica, 1997, 15(2): 226-231.
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Lu Jialan, Zhuang Hanging, Liu Wenjun. The Experimental Studies on the Role of Organic Matter in Formation of Strata-bound Pb-Zn Deposit[J]. Acta Sedimentologica Sinica, 1997, 15(2): 226-231.
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The Experimental Studies on the Role of Organic Matter in Formation of Strata-bound Pb-Zn Deposit
- Received Date: 1996-06-12
- Publish Date:
1997-04-10
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Abstract
The role of organic matter in the formation of strata-bound Pb-Zn deposits was discussed widely.The experimental studies in this paper included three aspects as follow:1. The partition coefficients of Pb2+ and Zn2+between、oexisting liquid oil and aqueous phase weredetermined in aqueous solutions with various pH and composition. The results suggested that Cu, Pb, andZn ahow a strong tendency to enrich liquid oil in alkaline aqueous solution, and that in acid conditionthese elements were still enriched in aqueous solution phase. 2. The solubilities of sphalerite and galena in oilfield brine and CaCl2-NaCl solution, which had thesame salinities as the brine, were determined, respectively. Furthermore, the competitive abilities of metalelements betty een o rgani c a nd ino rganic com posi do ns in oilfi eld brine w ere di scus sed. 3. Based on the hypothesis of double source rocks, the relationship between formation and primarymigration of oil and mobilization of lead and zinc were studies experimentally. The results showed thatth e concentration of Zn in chloroform extractsmetal elements were obtained in migrated oil asup to 52一691u-g/g and that higher concentrations ofTherefore, it was reasonably suggested that liquid oil is an important carrier of metal elements andimportant composition of ore-forming fluid at appropriate maturity limit of oil evolution.
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