Geology and genesis of the Early Paleozoic Zhengguang intermediate-sulfidation epithermal Au-Zn deposit, northeast China
文献类型：期刊论文
| 作者 | Wang, Le1,2,3; Qin, Kezhang1,2,4; Song, Guoxue4; Pang, Xuyong1,5; Li, Guangming1,2; Zou, Xinyu1,2,4 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 124页码:31 |
| 关键词 | Zhengguang Au-Zn Early Paleozoic Intermediate sulfidation epithermal deposit Northeast China |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2020.103602 |
| 英文摘要 | Zhengguang is a partly eroded (about >= 500 m being eroded), structurally controlled intermediate sulfidation (IS) epithermal gold-zinc deposit, characterized by wide distribution of base metal sulfides, Fe-poor sphalerite and Mn-calcite, hosted by the Late Cambrian-Early Ordovician basaltic-andesitic volcanic and volcano -sedimentary rocks in northeast China. The deposit is located 4 and 8 km from the Early Ordovician Tongshan (including several IS veins about similar to 500 m away in the east called East Tongshan) and Duobaoshan porphyry copper deposits, respectively. A 484.8 +/- 8.7 Ma (MSWD = 198) of Re-Os isochron age on pyrite indicates that it is the most ancient intermediate sulfidation deposit that has been dated. Four stages of veins have been discerned at Zhengguang. Early magnetite +/- chalcopyrite +/- epidote +/- chlorite and K-feldspar +/- pyrite +/- chalcopyrite veins (stage I) were associated with restricted K-feldspar +/- epidote (locally with chlorite) alteration and propylitic (epidote +/- chlorite +/- calcite) assemblages. Two primary epithermal gold stages developed at Zhengguang: pyrite-quartz +/- Fe-poor sphalerite +/- chalcopyrite +/- galena +/- electrum +/- petzite +/- hessite +/- tetrahedrite/tennantite +/- adularia veins (stage II) and (Mn-)calcite-quartz-pyrite +/- Fe-poor sphalerite +/- chalcopyrite +/- galena +/- hessite +/- native gold (stage III), plus a late barren stage characterized by little sulfides (calcite +/- chlorite +/- hematite +/- quartz, stage IV). Gold occurs chiefly as micro-inclusions of electrum and petzite in pyrite and sphalerite of stages II and III. Stable isotope analyses and fluid inclusion results indicate a magmatic-hydrothermal component in the ore fluids. Fluid inclusion data from stage I yielded the highest salinity (similar to 6.9 wt% NaCl) and homogenization temperature (average 264 C). Calculated oxygen isotope composition of fluid (delta O-18(water) up to 4.9 parts per thousand) equilibrated with quartz indicates a magmatic-hydrothermal source during stage I. A progressive addition of meteoric water component is suggested from stage I to IV of Zhengguang based on the average delta O-18 water values equilibrated with quartz and homogenization temperatures (stage I: delta O-18(water) = 3.3 parts per thousand, Th = 264 degrees C; stage II: delta O-18(water) = 1.4 parts per thousand, Th = 182 degrees C; stage III: delta O-18(water) = 3.4 parts per thousand, T-h = 154 degrees C; stage IV: delta O-18(water) = 6.3 parts per thousand, T-h = 121 degrees C). Our new pyrite Re-Os dating result shows that Zhengguang formed at the same time with Tongshan and Duobaoshan within errors. Comparable sulfur isotopic compositions of pyrite from Zhengguang and Tongshan, analogous low-Fe content in sphalerite and similar mineral assemblage and alteration pattern between Zhengguang and East Tongshan IS veins collectively indicate a genetic connection between Zhengguang and Tongshan, which may derive from fluids exsolved from the same magma chamber. High-temperature assemblages (e.g., K-feldspr +/- pyrite +/- chalcopyrite) at Zhengguang indicate that there is potential for the discovery of porphyry copper gold mineralization below the current level of diamond drilling. The confirmation of the Zhengguang as an Early Paleozoic epithermal deposit implies a good preservation and exploration potential of ancient epithermal deposits in eastern Central Asian Orogenic Belt. |
| WOS关键词 | PORPHYRY COPPER-DEPOSIT ; DUOBAOSHAN ORE FIELD ; ASIAN OROGENIC BELT ; U-PB AGES ; HEILONGJIANG PROVINCE ; FLUID INCLUSION ; GOLD DEPOSIT ; HYDROTHERMAL SYSTEM ; NE CHINA ; ISOTOPIC COMPOSITION |
| 资助项目 | National Key R&D Program of China[2017YFC0601306] ; National Natural Science Foundation of China Project[41572064] ; Heilong Mining Co., Ltd. ; UCAS Joint PhD Training Program |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000564296800001 |
| 出版者 | ELSEVIER |
| 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 ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; 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 Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; 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 Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; 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 Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; National Natural Science Foundation of China Project ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; Heilong Mining Co., Ltd. ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program ; UCAS Joint PhD Training Program |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/97775]  |
| 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 | Qin, Kezhang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Univ Ottawa, Dept Earth & Environm Sci, Ottawa, ON K1N 6N5, Canada 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Le,Qin, Kezhang,Song, Guoxue,et al. Geology and genesis of the Early Paleozoic Zhengguang intermediate-sulfidation epithermal Au-Zn deposit, northeast China[J]. ORE GEOLOGY REVIEWS,2020,124:31. |
| APA | Wang, Le,Qin, Kezhang,Song, Guoxue,Pang, Xuyong,Li, Guangming,&Zou, Xinyu.(2020).Geology and genesis of the Early Paleozoic Zhengguang intermediate-sulfidation epithermal Au-Zn deposit, northeast China.ORE GEOLOGY REVIEWS,124,31. |
| MLA | Wang, Le,et al."Geology and genesis of the Early Paleozoic Zhengguang intermediate-sulfidation epithermal Au-Zn deposit, northeast China".ORE GEOLOGY REVIEWS 124(2020):31. |
入库方式： OAI收割
来源：地质与地球物理研究所
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