Geochemistry of gold deposits in the Zhangbaling Tectonic Belt, Anhui province, China
Dezhi Huang;  Xianying Wang;  Xiaoyong Yang;  Guoming Li;  Shiqi Huang;  Zhen Liu;  Zehua Peng;  Ruilong Qiu
刊名International Geology Review
2011
卷号53期号:5–6页码:612–634
关键词Gold Deposits Fluid Inclusion Hydrogen And Oxygen Isotopes Ree Zhangbaling Tectonic Belt East Anhui Province China
英文摘要

The Zhangbaling Tectonic Belt (ZTB) is located in eastern Anhui province, adjacent to the Tan-Lu fault zone to the W and the Lower and Middle Yangtze River metallogenic zone to the E. Two types of gold deposits: (1) altered-tectonite gold and (2) quartz-vein gold are present in the ZTB. Three ranges of homogenization temperatures (Th) were obtained by fluid inclusion investigations of the altered-tectonite gold deposits: 115– 165°C, 235–275°C, and 335–395°C; and of the quartz-vein gold deposits: 145–195°C, 205–255°C, and 255–335°C, respectively. dD values of the ore-forming fluids range from −52.2‰ to −75.3‰, and their isotopic compositions calculated from quartz analytical data show negative d 18O values (−6.3–0.1‰) for the quartz-vein gold deposits. The calculated d 18O values of water are evidently lower than magmatic water, and probably were derived from mixtures of magmatic and meteoric water. Although the total rare earth elements (REE) content of the quartz-vein gold ores are much lower than those of the spatially associated granites, their chondrite-normalized patterns are similar, indicating that ore-forming elements in the ZTB quartz-vein gold deposits probably were derived from the plutons. Ores from the altered-tectonite gold deposits show dEu values and chondrite-normalized REE patterns similar to those of the granites, indicating that ore-forming elements of the altered-tectonite gold deposits also were sourced in the Yanshanian plutons. The gold deposits in the ZTB are remarkably similar to those in the Jiaodong gold metallogenic province with regard to tectonic settings, mineralizationcontrolling factors, mineralization ages, and the ore-forming temperatures and the stable isotopic compositions.

语种英语
内容类型期刊论文
源URL[http://ir.gyig.ac.cn/handle/42920512-1/8254]  
专题地球化学研究所_矿床地球化学国家重点实验室
作者单位1.Geological Survey of Anhui Province, Hefei, China
2.CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
3.State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
4.School of Geosciences and Environmental Engineering, Central South University of China, Changsha, China
推荐引用方式
GB/T 7714
Dezhi Huang;Xianying Wang;Xiaoyong Yang;Guoming Li;Shiqi Huang;Zhen Liu;Zehua Peng;Ruilong Qiu. Geochemistry of gold deposits in the Zhangbaling Tectonic Belt, Anhui province, China[J]. International Geology Review,2011,53(5–6):612–634.
APA Dezhi Huang;Xianying Wang;Xiaoyong Yang;Guoming Li;Shiqi Huang;Zhen Liu;Zehua Peng;Ruilong Qiu.(2011).Geochemistry of gold deposits in the Zhangbaling Tectonic Belt, Anhui province, China.International Geology Review,53(5–6),612–634.
MLA Dezhi Huang;Xianying Wang;Xiaoyong Yang;Guoming Li;Shiqi Huang;Zhen Liu;Zehua Peng;Ruilong Qiu."Geochemistry of gold deposits in the Zhangbaling Tectonic Belt, Anhui province, China".International Geology Review 53.5–6(2011):612–634.
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