Ore genesis of the Baiyun gold deposit in Liaoning province, NE China: constraints from fluid inclusions and zircon U-Pb ages
文献类型：期刊论文
| 作者 | Sun, Guotao1,2,3; Zeng, Qingdong1,2,3; Li, Taiyang4; Li, An4; Wang, Enyuan4; Xiang, Chunsheng4; Wang, Yongbin1,2; Chen, Peiwen1,2,3; Yu, Bing1,2,3 |
| 刊名 | ARABIAN JOURNAL OF GEOSCIENCES
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 12期号:9页码:17 |
| 关键词 | Fluid inclusion Fluid mixing Zircon U-Pb Baiyun gold deposit Eastern Liaoning province |
| ISSN号 | 1866-7511 |
| DOI | 10.1007/s12517-019-4459-0 |
| 英文摘要 | The Baiyun gold deposit in the Liaodong gold province, NE, North China Craton (NCC), is a lode gold deposit hosted within the Paleoproterozoic metamorphic rocks. Disseminated and vein-hosted gold mineralization occurs along NWW-trending interlayer faults and NE-trending normal faults. Crosscutting relationships and mineral assemblages indicate hydrothermal process of the gold deposit can be divided into three stages, characterized by pyrite-quartz (stage 1), quartz-pyrite-chalcopyrite (stage 2), and quartz-carbonate (stage 3) assemblages. Gold is observed within stage 1 and 2 veins. Hessite is observed within stage 2 veins. Fluid inclusion petrography and microthermometry indicate that the ore fluid evolved from moderate salinities to low salinities, likely due to fluid mixing. The precipitation of gold and hessite is attributed to fluid mixing. Fluid inclusion compositions present the minimum trapping temperatures of the ore fluid were between 200 and 290 degrees C. Minimum trapping pressures estimated from H2O-CO2-NaCl inclusions were 58-139 and 24-68MPa for stage 1 and 2 assemblages, respectively. The O-18(water) (parts per thousand (SMOW)) values of ore fluid in stage 1 range from 3.9 to 7.8 parts per thousand, and the D (parts per thousand (SMOW)) values are between -92 and -69 parts per thousand, indicating that the ore fluid was dominantly magmatic water. Zircon from a pre-ore quartz porphyry yielded a weighted mean zircon Pb-206/U-238 age of 127.8 +/- 0.8Ma, and the emplacement of a post-ore microdiorite is constrained to 125.6 +/- 1.3Ma. These results suggest that the Baiyun gold deposit is an intrusion-related vein gold deposit formed at 126Ma, which coincides with extension and a peak in magmatism within the NCC, indicating that gold mineralization in this region might have resulted from the breakup of the NCC. |
| WOS关键词 | PALEOPROTEROZOIC CRUSTAL EVOLUTION ; NORTH CHINA ; LIAODONG PENINSULA ; STABLE-ISOTOPE ; OXYGEN-ISOTOPE ; EASTERN BLOCK ; JIAODONG PENINSULA ; HF ISOTOPES ; MINERALIZATION ; SYSTEMS |
| 资助项目 | National Key R & D Program of China[2016YFC0600108] ; State Key Laboratory of Lithospheric Evolution[S201605] ; National Key R&D Program of China[2016YFC0600101] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000465856700004 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Key R & D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; National Key R & D Program of China ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/91384]  |
| 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 | Zeng, Qingdong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resouces, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Liaoning Zhaojin Baiyun Gold Min Corp, Dandong 118107, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Guotao,Zeng, Qingdong,Li, Taiyang,et al. Ore genesis of the Baiyun gold deposit in Liaoning province, NE China: constraints from fluid inclusions and zircon U-Pb ages[J]. ARABIAN JOURNAL OF GEOSCIENCES,2019,12(9):17. |
| APA | Sun, Guotao.,Zeng, Qingdong.,Li, Taiyang.,Li, An.,Wang, Enyuan.,...&Yu, Bing.(2019).Ore genesis of the Baiyun gold deposit in Liaoning province, NE China: constraints from fluid inclusions and zircon U-Pb ages.ARABIAN JOURNAL OF GEOSCIENCES,12(9),17. |
| MLA | Sun, Guotao,et al."Ore genesis of the Baiyun gold deposit in Liaoning province, NE China: constraints from fluid inclusions and zircon U-Pb ages".ARABIAN JOURNAL OF GEOSCIENCES 12.9(2019):17. |
入库方式： OAI收割
来源：地质与地球物理研究所
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