Zhang Xiulian. RELATIONSHIP BETWEEN CARBON AND OXYGEN STABLE ISOTOPE IN CARBONATE ROCKS AND PALEOSALINITY AND PALEOTEMPERATURE OF SEAWATER[J]. Acta Sedimentologica Sinica, 1985, 3(4): 17-30.
Citation:
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.
The Experimental Studies on the Role of Organic Matter in Formation of Strata-bound Pb-Zn Deposit
1 Guangzhou Institute of Geochemistry Chinese Academy of Sciences China Guangzhou 5106400;
2 Chengdu Institute of Technology China Chengdu 610059
Received Date: 1996-06-12
Publish Date:
1997-04-10
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.
4 Marikos M A, Landon R C and Leventhal ,J S. Solid insoublebitumen in the Magmont Westorebody, southeast Missouri. 1rcon Geo1.1986.81 1933-1998
5 Gize P G and Barnes H L. The oranic geochenistryMississippi Valley-type lead-zinc deposits. Lcon Geoh 1987, 82 457-470.
6 尹汉辉等著.滇西地注构造与成矿.长沙:中南工业人学出版社，1993, 86-91
7 Montacer M, Disrwar ,J R.Orgeval ,J ,J, and Trichet ,J. Relation-ship between Zn-Pb ore and oil accumllation processes Exam-ple of the Bou Grine deposit(Tunisia). Advances in Organicochemistry 1987, Org. Geochem.13(1-3): 423-431.
9 Lu Jialan.l}u Jiamo. Liu Jinzhong and Ghang Huizhit The rela-tionship between oil generation/primary migration and metalmineralization. Poster Sessions from the 16th htermationalMeeting on Organic Geochemistry, Stavanger, 1993, 615-617.
10 Manning D A C and Gize P G 'fhe role of organic matter inore transport processes. iri Organic Geochemistry(ed. by M HL,ngel and S A Macko). Plenum Press, New York, 1993, 547-563
14 Sverjensky D A. Oil field brines as ore-orming solutions. 1rcon Geol, 1984, 79 23-37.
14 Giralano 'f Hand Drummond S E. The potentiometric deter urination of stability constants for zinc acetate complexes in aqueous solutions to 295℃ Geochim Cosmochim Acta. 1991. 55 2401-2415.
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.
Zhang Xiulian. RELATIONSHIP BETWEEN CARBON AND OXYGEN STABLE ISOTOPE IN CARBONATE ROCKS AND PALEOSALINITY AND PALEOTEMPERATURE OF SEAWATER[J]. Acta Sedimentologica Sinica, 1985, 3(4): 17-30.
Citation:
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.
4 Marikos M A, Landon R C and Leventhal ,J S. Solid insoublebitumen in the Magmont Westorebody, southeast Missouri. 1rcon Geo1.1986.81 1933-1998
5 Gize P G and Barnes H L. The oranic geochenistryMississippi Valley-type lead-zinc deposits. Lcon Geoh 1987, 82 457-470.
6 尹汉辉等著.滇西地注构造与成矿.长沙:中南工业人学出版社，1993, 86-91
7 Montacer M, Disrwar ,J R.Orgeval ,J ,J, and Trichet ,J. Relation-ship between Zn-Pb ore and oil accumllation processes Exam-ple of the Bou Grine deposit(Tunisia). Advances in Organicochemistry 1987, Org. Geochem.13(1-3): 423-431.
9 Lu Jialan.l}u Jiamo. Liu Jinzhong and Ghang Huizhit The rela-tionship between oil generation/primary migration and metalmineralization. Poster Sessions from the 16th htermationalMeeting on Organic Geochemistry, Stavanger, 1993, 615-617.
10 Manning D A C and Gize P G 'fhe role of organic matter inore transport processes. iri Organic Geochemistry(ed. by M HL,ngel and S A Macko). Plenum Press, New York, 1993, 547-563
14 Sverjensky D A. Oil field brines as ore-orming solutions. 1rcon Geol, 1984, 79 23-37.
14 Giralano 'f Hand Drummond S E. The potentiometric deter urination of stability constants for zinc acetate complexes in aqueous solutions to 295℃ Geochim Cosmochim Acta. 1991. 55 2401-2415.
Zhang Xiulian. RELATIONSHIP BETWEEN CARBON AND OXYGEN STABLE ISOTOPE IN CARBONATE ROCKS AND PALEOSALINITY AND PALEOTEMPERATURE OF SEAWATER[J]. Acta Sedimentologica Sinica, 1985, 3(4): 17-30.
Zhang Xiulian. RELATIONSHIP BETWEEN CARBON AND OXYGEN STABLE ISOTOPE IN CARBONATE ROCKS AND PALEOSALINITY AND PALEOTEMPERATURE OF SEAWATER[J]. Acta Sedimentologica Sinica, 1985, 3(4): 17-30.
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