The source, enrichment and precipitation of ore-forming elements for porphyry Mo deposit: Evidences from melt inclusions, biotite and fluorite in Dasuji deposit, China
文献类型：期刊论文
| 作者 | Chen, Peiwen3,4; Zeng, Qingdong2,3; Guo, Weikang1; Chen, Junqi5 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 135页码:13 |
| ISSN号 | 0169-1368 |
| 关键词 | Melt inclusions Biotite Fluorite Ore-forming process Dasuji porphyry Mo deposit |
| DOI | 10.1016/j.oregeorev.2021.104205 |
| 英文摘要 | The Dasuji ore deposit is a large-scale porphyry Mo deposit at the northern margin of the North China Craton, China. Four stages of hydrothermal veins were recognized in the deposit, from early to late: K-feldspar-quartz veins (stage 1), quartz-molybdenite veins (stage 2), quartz-carbonate-pyrite-galena-sphalerite veins and fluorite veins (stage 3), and carbonate-quartz +/- fluorite veins (stage 4). The melt inclusions in the earliest K-feldspar-quartz veins retain information about the ore-forming magma. Melt inclusions in quartz were studied in detail to investigate the magmatic evolution. In chondrite- and primitive-mantle-normalized trace element diagrams, all the inclusions have negative Ba, Sr, and Eu, and positive Pb anomalies. The inclusions have uniform (La/Sm)N ratios, and Sr concentrations decrease with decreasing Ba content, indicating the magma experienced significant fractionation, particularly of plagioclase and biotite. With increasing SiO2, Mo concentrations gradually increased, whereas Cu concentrations first increased and then decreased, suggesting that magmatic evolution was beneficial for Mo, but not Cu, enrichment. This indicates that highly fractionated magmas are conducive to the formation of porphyry Mo ore deposits rather than Cu ore deposits. The high F contents in biotite (up to 4.03 wt%) and pervasive occurrence of fluorite are indicative of a high-F magmatic-hydrothermal system. The disappearance of magnetite means the decrease of oxygen fugacity during stage 2, which promotes molybdenite precipitation. The contents of trace elements in fluorite before the stage 4 changed little, indicating that the fluid system was closed prior to this stage. The highly fractionated granitic magmatic system with high oxygen fugacity and high fluorine content potentially contain new porphyry Mo deposit. |
| WOS关键词 | MAGMATIC-HYDROTHERMAL FLUIDS ; COPPER-MOLYBDENUM DEPOSIT ; PALEOZOIC CRUSTAL GROWTH ; RE-OS AGES ; LA-ICP-MS ; NORTHERN MARGIN ; GEOLOGICAL CHARACTERISTICS ; INNER-MONGOLIA ; EVOLUTION ; GEOCHRONOLOGY |
| 资助项目 | National Natural Science Foundation of China[41390443] ; National Key Research and Development Program of China[2017YFC0601306] ; 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 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000671810300001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program 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/132A11/101976]  |
| 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.China Geol Survey, Chengdu Ctr, Chengdu 610081, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 4.Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550012, Peoples R China 5.Inner Mongolia Zhongxi Min Co Ltd, Yushu Township 012300, Inner Mongolia, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Peiwen,Zeng, Qingdong,Guo, Weikang,et al. The source, enrichment and precipitation of ore-forming elements for porphyry Mo deposit: Evidences from melt inclusions, biotite and fluorite in Dasuji deposit, China[J]. ORE GEOLOGY REVIEWS,2021,135:13. |
| APA | Chen, Peiwen,Zeng, Qingdong,Guo, Weikang,&Chen, Junqi.(2021).The source, enrichment and precipitation of ore-forming elements for porphyry Mo deposit: Evidences from melt inclusions, biotite and fluorite in Dasuji deposit, China.ORE GEOLOGY REVIEWS,135,13. |
| MLA | Chen, Peiwen,et al."The source, enrichment and precipitation of ore-forming elements for porphyry Mo deposit: Evidences from melt inclusions, biotite and fluorite in Dasuji deposit, China".ORE GEOLOGY REVIEWS 135(2021):13. |
入库方式： OAI收割
来源：地质与地球物理研究所
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