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STABLE ISOTOPE COMPOSITION OF GULIKU GOLD(-SILVER) DEPOSIT |
ZHU Qun1,2, Wang En-de1, LI Zhi-tong2, YANG Fang-lin2 |
1. Instiute of Resources and Civil Engineering, Northeast University, Shenyang 110004, China; 2. Shenyang Institute of Geology and Mineral Resources, Shenyang 110033, China |
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Abstract Guliku gold (-silver) deposit is located at the connection of Dayangshu volcanic basin and Luomahu intermediate uplift. Besed on the stable isotope composition study, a mineralization model for Gulilu Au (-Ag) deposit is proposed, i.e.an adular-sericite type of epithermal gold (-silver) deposit with horizontally zoned Au-Ag ore bodies occurring in the limb of a paleo-volcanic dome on the margin of a Mesozoic continental volcanic basin.The mineralization is in two stages.The temperature of the early stage is between 240℃ and 280℃,while that of the late stage is from 185℃ to 235℃.The isotopic composition (δDH2O-76‰ to-94‰,δ18O-6.58‰ to-14.11‰) suggests that the minerlizing solution is derived from mainly meteoric water. The S and Pb isotopic study shows that the "hydrothermal sulfur" is derived from volcanic rocks and the "hydrothermal lead" is from the basement and associated granitoids.
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Received: 06 February 2004
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[1] |
WANG Jing-xin, XU Jia, YU He, SHU Guang-long, FENG De-sheng, SHI Jian-min, SUN Zhen-jiang. GEOLOGICAL CHARACTERISTICS AND METALLOGENIC AGE OF THE LARGE SILVER-LEAD-ZINC DEPOSIT IN HALASHENG OF MANZHOULI AREA, INNER MONGOLIA[J]. GEOLOGY AND RESOURCES, 2019, 28(1): 18-24,97. |
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