Fluid inclusion evidence for hydrothermal evolution of the Sadaigoumen porphyry Mo deposit on the northern margin of the north China Craton
文献类型：期刊论文
| 作者 | Chen, Peiwen1,5; Zeng, Qingdong1,2; Zhou, Lingli3; Zhou, Tiancheng4 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 134页码:21 |
| 关键词 | Fluid inclusion Microthermometry LA-ICP-MS Sadaigoumen Mo deposit Northern margin of NCC |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2021.104145 |
| 英文摘要 | The Sadaigoumen porphyry Mo deposit is located on the northern margin of the North China Craton (NCC). In this study, in situ fluid-inclusion analyses including microthermometry, laser Raman spectroscopy, and LA-ICP-MS microanalysis, as well as Quartz H-O isotopes are present to precisely constrain the hydrothermal evolution of the Sadaigoumen deposit. Five stages of hydrothermal activity are identified, with Stage 1 characterized by the development of magnetite with rare sulfide minerals; Stage 2 by K-feldspar as the typical vein mineral; Stage 3 by molybdenite mainly in veins; Stage 4 by the development of fluorite-quartz and quartz-pyrite veins; and Stage 5 by barren carbonate-quartz veins. Fluid inclusion types were distinguished based on petrographic observations and microthermometric analysis, and fluid compositions were detected by LA-ICP-MS. Microthermometric analyses indicate decreasing homogenization temperatures in primary fluid inclusions from Stage 1 to Stage 3. Intermediate-density fluids of stages 1 and 2 are characterized by high homogenization temperatures (420 degrees C-470 degrees C), moderate salinities (6.3-11.2 wt%), and high Mo contents (52-541 ppm). Hydrothermal evolution during Mo mineralization in Stage 3 is characterized by immiscible inclusion assemblages that formed through phase separation from intermediate-density fluid. Fluid inclusions of Stage 3 were trapped at pressures fluctuating around the two-phase fluid surface, leading to at least two fluid immiscible phases (373 degrees C-414 degrees C and 311 degrees C-341 degrees C). The Mo contents of fluid inclusions vary greatly in Stage 3, with Mo tending to be enriched in brine. In stages 4 and 5, fluids display characteristics that indicate mixing with meteoric water, with homogenization temperatures (<299 degrees C) and salinities (<5.8 wt%) decreasing together with Mo content. The Cs/(Na + K + Mn + Fe) ratios of fluid inclusions are stable from stages 1 to 4, indicating a constant supply of ore-forming fluids from an underlying, geochemically uniform magma chamber. The fluid inclusion data suggest that Mo and Cu in the initial exsolved fluids of the Sadaigoumen porphyry Mo deposit display different migration and precipitation progresses, which is of great significance to the study of the delicate ore-forming progress of porphyry Mo (-Cu) deposits in the northern NCC. |
| WOS关键词 | COPPER-MOLYBDENUM DEPOSIT ; ASIAN OROGENIC BELT ; EQUATION-OF-STATE ; RE-OS AGES ; LA-ICP-MS ; GEOLOGICAL CHARACTERISTICS ; INNER-MONGOLIA ; NEW-MEXICO ; CH4-CO2-H2O SYSTEM ; MINERALIZING TYPES |
| 资助项目 | National Key Research and Development Plan[2017YFC0601306] ; National Natural Science Foundation of China[91962104] ; National Natural Science Foundation of China[41390443] ; Special Research Fund of Natural Science (Special Post) of Guizhou University[2020(27)] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000656487600001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University ; Special Research Fund of Natural Science (Special Post) of Guizhou University |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102016]  |
| 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 | Chen, Peiwen; Zeng, Qingdong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Univ Coll Dublin, Sch Earth Sci, iCRAG, Dublin 4, Ireland 4.Minist Nat Resources China, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 5.Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Peiwen,Zeng, Qingdong,Zhou, Lingli,et al. Fluid inclusion evidence for hydrothermal evolution of the Sadaigoumen porphyry Mo deposit on the northern margin of the north China Craton[J]. ORE GEOLOGY REVIEWS,2021,134:21. |
| APA | Chen, Peiwen,Zeng, Qingdong,Zhou, Lingli,&Zhou, Tiancheng.(2021).Fluid inclusion evidence for hydrothermal evolution of the Sadaigoumen porphyry Mo deposit on the northern margin of the north China Craton.ORE GEOLOGY REVIEWS,134,21. |
| MLA | Chen, Peiwen,et al."Fluid inclusion evidence for hydrothermal evolution of the Sadaigoumen porphyry Mo deposit on the northern margin of the north China Craton".ORE GEOLOGY REVIEWS 134(2021):21. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。