| Citation: |
SONG Zhong-bao, YANG He-qun, WU Jie-ren. Silicon-lead-sulfur isotopic constitution of Shijuli copper deposits of North Qilian Mountains[J]. Northwestern Geology, 2003, 36(2): 83-86.
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Silicon-lead-sulfur isotopic constitution of Shijuli copper deposits of North Qilian Mountains
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Abstract
Shijuli copper deposits are typical Cyprus-type ones in the western part of North Qilian Mountains.On the basis of the silicon-lead-sulfur isotope constitution of the ores and wall rocks in Shijuli ore area, the author thinks that it is volcanic genesis.The δ30Si(-0.9‰～-0.2‰) from jaspilite and quartz of ores show that they are consistent with ones of basaltic rocks.Lead isotope compositions of pyrites and chlcopy rites are similar to those of basalts in the area.Thus, it is considered that the lead from ores comes mainly from altered basalts.However, sulfur in the deposits may be the results of reactions to different degrees between sea-water and basaltic rocks, because δ34S in pyrites and chlcopyrites varies between 1.5‰～8.88‰-
Keywords:
- Shijuli /
- Cyprus-type deposits /
- stable isotope
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References
丁悌平,蒋少涌,万德芳,等.硅同位素地球化学[M].北京:地质出版社,1994. 夏林圻,夏祖春,任有祥,等.祁连山及邻区火山作用与成矿[M].北京:地质出版社,1998. 李文渊,杨合群,赵东宏,等,北祁连发现塞浦路斯型铜矿床[J].矿床地质,1999,18(3). 杨合群,李文渊,赵东宏,等.北祁连山石居里沟富铜矿床成矿特征[J].地质与勘探,2000, 36(6):20-22. 杜玉良,李文渊.甘肃铜矿资源特征与新一轮找矿思路[J].西北地质,2001,34(4):23-29. 宋忠宝. 我国同位素研究的最新进展[J]. 西北地质, 1998(1), Roma P A et al. Hydrothermal Processes at Seafloorspreading Centers[M]. New York: Plenum Press, 1983. Sangster D F.Sulphur and lead isotopes in strata bound deposits[A],in Wolf K H,ed.Handbook of strata-bound and stratiform ore deposits[C].Amsterdam,Elsevier,1976,Vol.2,219-266. -
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SONG Zhong-bao, YANG He-qun, WU Jie-ren. Silicon-lead-sulfur isotopic constitution of Shijuli copper deposits of North Qilian Mountains[J]. Northwestern Geology, 2003, 36(2): 83-86.
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