Origin of ore-forming fluids of the Haigou gold deposit in the eastern Central Asian Orogenic belt, NE China: Constraints from H-O-He-Ar isotopes
文献类型：期刊论文
| 作者 | Zeng, Qingdong; He, Huaiyu; Zhu, Rixiang; Zhang, Song; Wang, Yongbin; Su, Fei |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2017-08-15 |
| 卷号 | 144页码:384-397 |
| 关键词 | Noble gas isotopes Stable isotopes Gold deposit Haigou NE China |
| ISSN号 | 1367-9120 |
| DOI | 10.1016/j.jseaes.2017.01.018 |
| 文献子类 | Article |
| 英文摘要 | The Haigou lode deposit contains 40 t of gold at an average grade of 3.5 g/t, and is one of the largest deposits in the Jiapigou gold belt located along the eastern segment of the northern margin of the North China Craton. The deposit comprises 15 gold-bearing quartz veins hosted in a Carboniferous monzonite-monzogranite stock. Cretaceous dikes consisting of diorite, diabase, and granodiorite porphyries are well developed in the deposit. The diorite porphyry dikes (130.4 +/- 63 Ma) occur together with gold-bearing quartz veins in NNE- and NE-striking faults. Gold-bearing quartz veins crosscut the diorite porphyry dikes, and the veins are in turn crosscut by E-W-striking 124.6 +/- 2.2 Ma granodiorite porphyry dikes. The mineralization mainly occurs as auriferous quartz veins with minor amounts of sulfide minerals, including pyrite, galena, chalcopyrite, and molybdenite. Gold occurs as either native gold or calaverite. Common gangue minerals in the deposit include quartz, sericite, and calcite. The deposit is characterized by various types of hydrothermal alteration, including silicification, sericitization, chloritization, potassic alteration, and carbonatization. Three stages of hydrothermal activity have been recognized in the deposit: (1) a barren quartz stage; (2) a polymetallic sulfide (gold) stage; (3) a calcite stage. Fluid inclusions in hydrothermal pyrites have He-3/He-4 ratios of 03 to 3.3 Ra and Ar-40/Ar-36 ratios of 351 to 1353, indicating mixing of fluids of mantle and crustal origin. Hydrothermal quartz yielded delta O-18 values of -1.3 parts per thousand to +7.2 parts per thousand and 8D values of fluid inclusions in the quartz vary between -80 parts per thousand and -104 parts per thousand. These stable isotope data also suggest mixing of magmatic and meteoric fluids. Noble gas and stable isotopic data suggest that the ore fluids have a predominant mantle source with a significant crustal component. Based on the spatial association of gold-bearing quartz veins with early Cretaceous intrusions, and the H-O-He-Ar isotopic data from the deposit and intrusions, we propose that gold mineralization in the Haigou deposit was formed in an extensional setting and was related to the early Cretaceous, mantle-derived intrusions. (C) 2017 Elsevier Ltd. All rights reserved. |
| WOS关键词 | METAMORPHIC CORE COMPLEX ; SAN-JUAN MOUNTAINS ; U-PB AGES ; OXYGEN ISOTOPE ; NORTHEAST CHINA ; JILIN PROVINCE ; HEBEI PROVINCE ; NOBLE-GASES ; FAULT ZONE ; MANTLE |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000404312000023 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Major State Basic Research Program of China(2013 CB429805) ; National Special Program of the Deep Resources of China(2016YFC0600108) ; National Natural Science Foundation of China(41390443) ; Major State Basic Research Program of China(2013 CB429805) ; National Special Program of the Deep Resources of China(2016YFC0600108) ; National Natural Science Foundation of China(41390443) ; Major State Basic Research Program of China(2013 CB429805) ; National Special Program of the Deep Resources of China(2016YFC0600108) ; National Natural Science Foundation of China(41390443) ; Major State Basic Research Program of China(2013 CB429805) ; National Special Program of the Deep Resources of China(2016YFC0600108) ; National Natural Science Foundation of China(41390443) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/50254]  |
| 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 | Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Qingdong,He, Huaiyu,Zhu, Rixiang,et al. Origin of ore-forming fluids of the Haigou gold deposit in the eastern Central Asian Orogenic belt, NE China: Constraints from H-O-He-Ar isotopes[J]. JOURNAL OF ASIAN EARTH SCIENCES,2017,144:384-397. |
| APA | Zeng, Qingdong,He, Huaiyu,Zhu, Rixiang,Zhang, Song,Wang, Yongbin,&Su, Fei.(2017).Origin of ore-forming fluids of the Haigou gold deposit in the eastern Central Asian Orogenic belt, NE China: Constraints from H-O-He-Ar isotopes.JOURNAL OF ASIAN EARTH SCIENCES,144,384-397. |
| MLA | Zeng, Qingdong,et al."Origin of ore-forming fluids of the Haigou gold deposit in the eastern Central Asian Orogenic belt, NE China: Constraints from H-O-He-Ar isotopes".JOURNAL OF ASIAN EARTH SCIENCES 144(2017):384-397. |
入库方式： OAI收割
来源：地质与地球物理研究所
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