Thermal-tectonic history of the Baogutu porphyry Cu deposit, West Junggar as constrained from zircon U-Pb, biotite Ar/Ar and zircon/apatite (U-Th)/He dating
文献类型：期刊论文
| 作者 | Li, Guang-Ming1; Cao, Ming-Jian1,2; Qin, Ke-Zhang1; Evans, Noreen J.3,4; McInnes, Brent I. A.4; Liu, Yong-Sheng5 |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2014-01-05 |
| 卷号 | 79页码:741-758 |
| 关键词 | Western Junggar Baogutu porphyry copper deposit Zircon U-Pb dating Ar/Ar dating Zircon (U-Th)/He dating Apatite (U-Th)/He dating Thermal-tectonic history |
| ISSN号 | 1367-9120 |
| DOI | 10.1016/j.jseaes.2013.05.026 |
| 文献子类 | Article |
| 英文摘要 | Understanding postmineralization tectonic movements in porphyry deposits, is critical to interpreting the complete thermal-tectonic history. This study reports new zircon U-Pb ages, hydrothermal biotite Ar-39/Ar-40 age, and zircon and apatite (U-Th)/He ages from the Baogutu porphyry copper deposit, which, in conjunction with pre-existing geochronology and thermochronology and inverse modeling simulations, constrain the thermal-tectonic history of the deposit. Zircon LA-ICP-MS U-Pb concordia ages indicate a Late Carboniferous age of 320.1 +/- 2.2 Ma for the diorite complex and 309.8 +/- 2.2 Ma for the mineralized granodiorite porphyry. Hydrothermal biotite selected from a quartz-biotite-chalcopyrite vein yields a plateau age of 311.0 +/- 1.8 Ma which agrees with the age of the granodiorite porphyry and a previously reported molybdenite Re-Os age, and suggests that hydrothermal fluid circulated about 310 m.y. ago. Diorite and granodiorite porphyry yield weighted mean zircon (U-Th)/He ages of 200.6 +/- 5.7 Ma and 241.1 +/- 8.1 Ma, respectively, with ages ranging from 221.0 Ma to 174.3 Ma and 225.9 to 261.6 Ma. Weighted mean diorite and granodiorite porphyry apatite (U-Th)/He ages of 87.4 +/- 2.3 Ma and 120.0 +/- 4.2 Ma were obtained with ages ranging from 68.9 Ma to 100.8 Ma, and from 91.0 Ma to 152.0 Ma, respectively. The wide range of zircon (U-Th)/He ages may be due to the combined effects of U and Th zonation and radiation damage, and radiation damage effect may also account for the wide range of apatite (U-Th)/He ages. The combined effects of depth and cooling due to meteoric water circulation contribute to an older (U-Th)/He age for the granodiorite porphyry, relative to the diorite. A five-episode cooling rate history for the diorite can be deduced by inverse model simulation: fast cooling moderate fast cooling relatively slow cooling-fast cooling again-very slow cooling. The thermal and tectonic history of the wall rock indicates that it suffered significant far-field effects from the Qiangtang-Eurasia and Lhasa-Qiangtang collision, however, no visible thermal effect from the India-Asia collision is observed. (C) 2013 Elsevier Ltd. All rights reserved. |
| WOS关键词 | APATITE FISSION-TRACK ; LA-ICP-MS ; MESOZOIC INTRACONTINENTAL DEFORMATION ; HELIUM DIFFUSION KINETICS ; INDIA-ASIA COLLISION ; CHINESE TIAN-SHAN ; KTB DRILL HOLE ; NORTHWEST CHINA ; RADIATION-DAMAGE ; TIEN-SHAN |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000330605000013 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Ministry of Land and Resources Comprehensive Research for Typical Mineral Deposits(20089932) ; Ministry of Land and Resources Comprehensive Research for Typical Mineral Deposits(20089932) ; Ministry of Land and Resources Comprehensive Research for Typical Mineral Deposits(20089932) ; Ministry of Land and Resources Comprehensive Research for Typical Mineral Deposits(20089932) ; Ministry of Land and Resources Comprehensive Research for Typical Mineral Deposits(20089932) ; Ministry of Land and Resources Comprehensive Research for Typical Mineral Deposits(20089932) ; Ministry of Land and Resources Comprehensive Research for Typical Mineral Deposits(20089932) ; Ministry of Land and Resources Comprehensive Research for Typical Mineral Deposits(20089932) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85950]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Li, Guang-Ming |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.CSIRO Earth Sci & Resource Engn, Kensington, WA 6151, Australia 4.Curtin Univ, Dept Appl Geol Appl Phys, John de Laeter Ctr Isotope Res, Perth, WA 6945, Australia 5.China Univ Geosci, Fac Earth Sci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Guang-Ming,Cao, Ming-Jian,Qin, Ke-Zhang,et al. Thermal-tectonic history of the Baogutu porphyry Cu deposit, West Junggar as constrained from zircon U-Pb, biotite Ar/Ar and zircon/apatite (U-Th)/He dating[J]. JOURNAL OF ASIAN EARTH SCIENCES,2014,79:741-758. |
| APA | Li, Guang-Ming,Cao, Ming-Jian,Qin, Ke-Zhang,Evans, Noreen J.,McInnes, Brent I. A.,&Liu, Yong-Sheng.(2014).Thermal-tectonic history of the Baogutu porphyry Cu deposit, West Junggar as constrained from zircon U-Pb, biotite Ar/Ar and zircon/apatite (U-Th)/He dating.JOURNAL OF ASIAN EARTH SCIENCES,79,741-758. |
| MLA | Li, Guang-Ming,et al."Thermal-tectonic history of the Baogutu porphyry Cu deposit, West Junggar as constrained from zircon U-Pb, biotite Ar/Ar and zircon/apatite (U-Th)/He dating".JOURNAL OF ASIAN EARTH SCIENCES 79(2014):741-758. |
入库方式： OAI收割
来源：地质与地球物理研究所
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