Biotite Ar-40/Ar-39 dating and chemical composition inform metallogenesis of Xiaoxi'nancha porphyry Au-Cu deposit, NE China
文献类型：期刊论文
| 作者 | Shan, PengFei2,3; Cao, MingJian2,4; Jourdan, Fred5; Evans, Noreen J.5; Ge, Xin6; Sun, JingGui1; Qin, KeZhang2,3,4; Zhao, Chao7 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 134页码:11 |
| ISSN号 | 0169-1368 |
| 关键词 | Biotite chemical compositions Biotite Ar-40/Ar-39 dating Zircon U-Pb dating Porphyry Au-Cu deposit Xiaoxi'nancha Yanbian area |
| DOI | 10.1016/j.oregeorev.2021.104140 |
| 英文摘要 | The Xiaoxi'nancha Au-Cu porphyry deposit, located in the eastern Jilin Province of Northeast China, is characterized by widespread biotite alteration, however, the age of Au-Cu mineralization is not well established. Hydrothermal biotite Ar/Ar dating and chemical composition are widely used to constrain the age and physicochemical characteristics of hydrothermal fluids. In this paper, microscopy observation, electron microprobe analysis, and Ar-40/Ar-39 dating of hydrothermal biotite from the Xiaoxi'nancha porphyry Au-Cu deposit and zircon U-Pb dating on the ore-bearing granitoids have been carried out to constrain fluid characteristics and the age of mineralization. The zircon crystals from the ore-bearing granitoids display obvious inherited cores and oscillatory rims. A range of Pb-206/U-238 age populations were obtained on the cores (e.g., similar to 967 Ma, similar to 782 Ma, similar to 495 Ma, similar to 430 Ma, similar to 385 Ma, similar to 354 Ma, similar to 311 Ma) but a young population with a uniform concordia age of 254.4 Ma was determined on the rims. These features indicate the occurrence of xenocrystic zircon in the orebearing granitoids, and imply that these rocks were probably derived from partial melting of continental crust with significant crustal contamination. Au-Cu and Mo mineralization are found together and associated with potassic and chlorite alteration. The Ar-40/Ar-39 age of hydrothermal biotite (similar to 110 Ma) is younger than the zircon U-Pb age (similar to 255 Ma), but similar to the previously published molybdenite Re-Os age (similar to 110 Ma). Thus, Au-Cu mineralization is coeval with Mo mineralization and formed at similar to 110 Ma, and has no genetic relationship with ore-bearing granitoids. The calculated log(fH(2)O/fHF) and log(fH(2)O/HCl) ratios of hydrothermal fluids are similar to those determined at other major porphyry deposits. However, the log(fHF/fHCl) ratio is lower than that of other porphyry deposits, indicating a relatively Cl-rich hydrothermal system at Xiaoxi'nancha. The Xiaoxi'nancha porphyry Au-Cu deposit is associated with early Cretaceous granitoids, generated during subduction of the Paleo-Pacific Ocean. |
| WOS关键词 | EPITHERMAL GOLD DEPOSITS ; ORE-FORMING FLUIDS ; F-CL-OH ; COPPER-DEPOSIT ; U-PB ; MINERAL CHEMISTRY ; JILIN PROVINCE ; GEOCHEMICAL CHARACTERISTICS ; HYDROTHERMAL BIOTITE ; MESOZOIC MAGMATISM |
| 资助项目 | National Key Research and Development Program[2017YFC0601306] ; Youth Innovation Promotion Association CAS[2018086] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000656562500001 |
| 资助机构 | National Key Research and Development Program ; National Key Research and Development Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Key Research and Development Program ; National Key Research and Development Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Key Research and Development Program ; National Key Research and Development Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Key Research and Development Program ; National Key Research and Development Program ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102009]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Cao, MingJian |
| 作者单位 | 1.Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China 2.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 5.Curtin Univ, John Laeter Ctr, Sch Earth & Planetary Sci, Perth, WA 6945, Australia 6.HunChun Zijin Min Grp Co LTD, Hunchun 133300, Jilin, Peoples R China 7.Changan Univ, Sch Earth Sci & Resources, Xian 710064, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shan, PengFei,Cao, MingJian,Jourdan, Fred,et al. Biotite Ar-40/Ar-39 dating and chemical composition inform metallogenesis of Xiaoxi'nancha porphyry Au-Cu deposit, NE China[J]. ORE GEOLOGY REVIEWS,2021,134:11. |
| APA | Shan, PengFei.,Cao, MingJian.,Jourdan, Fred.,Evans, Noreen J..,Ge, Xin.,...&Zhao, Chao.(2021).Biotite Ar-40/Ar-39 dating and chemical composition inform metallogenesis of Xiaoxi'nancha porphyry Au-Cu deposit, NE China.ORE GEOLOGY REVIEWS,134,11. |
| MLA | Shan, PengFei,et al."Biotite Ar-40/Ar-39 dating and chemical composition inform metallogenesis of Xiaoxi'nancha porphyry Au-Cu deposit, NE China".ORE GEOLOGY REVIEWS 134(2021):11. |
入库方式： OAI收割
来源：地质与地球物理研究所
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