Hydrothermal Zircon from a Newly Found Porphyritic Granite in the Dongping Gold Deposit in Northern Hebei, China: Evidence from Petrography and Hf Isotope Composition
Hydrothermal Zircon from a Newly Found Porphyritic Granite in the Dongping Gold Deposit in Northern Hebei, China: Evidence from Petrography and Hf Isotope Composition
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中国河北北部东平金矿床新发现的斑状花岗岩中的热液锆石：岩相学和铪同位素组成的证据
DOI：
10.1111/1755-6724.14314
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发表时间：
2019-12
期刊：
影响因子：
--
通讯作者：
Zhang Guorui
中科院分区：
文献类型：
--
作者：
Wei Hao;Xu Jiuhua;Zhang Guorui
Hydrothermal zircon is altered by hydrothermal fluids and sometimes shows "hydrothermal mineral" characteristics. Studying hydrothermal zircon in gold deposits can help understand the origins of the gold mineralization. The Hf isotope composition of zircon can be used to determine the properties of the original rock. However, most zircon Hf isotope studies focus on magmatic zircon; only a few involve hydrothermal zircon. The widespread Dongping gold deposit, located in Chongli County of the Hebei Province, occurs in the Shuiquangou alkaline complex. A porphyritic granite body which extends along the northwest-trending shear zone within the Shuiquangou complex was recently discovered in the Zhuanzhilian area of the Dongping deposit. The porphyritic granite body underwent silicification or potassic alteration and the associated gold reserves are estimated at more than a ton. A number of hydrothermal zircon examples were identified under CL (Fig. 1). The zircon was generally dark black with irregular silkworm shape. Some zircon was sheared or broken into sub-grains with residual, oscillating magmatic rings. Based on zircon U-Pb dating in porphyritic granite, 142.02±1.2 Ma is believed to be the age of the hydrothermal fluid alteration and gold mineralization, while residual zircon of the Shuiquangou alkaline complex dates to 373±3.5 Ma. Hf isotopes of hydrothermal zircon were analyzed to further understand the origin and evolution of porphyritic granite and its relationship with gold mineralization.
冀北东平金矿床深部及周边结构、蚀变及流体包裹体研究.
影响因子：
1.8
作者：
Zhang GuoRui;Xu JiuHua;Wei Hao;Song GuiChang;Zhang YaBin;Zhao JunKang;He Bo;Chen DongLiang
通讯作者：
Chen DongLiang
冀北东平矿床斑状花岗岩热液交代作用与金矿化：锆石测年证据
影响因子：
2.5
作者：
Wei Hao;Xu Jiuhua;Zhang Guorui;Cheng Xihui;Chu Haixia;Zhang Zeyan
通讯作者：
Zhang Zeyan
影响因子：
56.9
作者：
T. M. Harrison;T. M. Harrison;J. Blichert‐Toft;Wolfgang Müller;Wolfgang Müller;Framcis Albarede;Peter Holden;S. Mojzsis
通讯作者：
T. M. Harrison;T. M. Harrison;J. Blichert‐Toft;Wolfgang Müller;Wolfgang Müller;Framcis Albarede;Peter Holden;S. Mojzsis