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The oldest Mo porphyry mineralization in the Yangtze Valley Metallogenic Belt of eastern China: Constraints on its origin from geochemistry, geochronology and fluid inclusion studies at Matou

文献类型：期刊论文

作者Li, Guangming1,2; Qin, Kezhang1,2; Song, Guoxue1,2; Bagas, Leon3,4
刊名ORE GEOLOGY REVIEWS
出版日期2017-12-01
卷号91页码:491-508
ISSN号0169-1368
关键词Yangtze Valley Metallogenic Belt Matou Oldest Mo Porphyry Mineralization Fluid Boiling Co2-rich Inclusions Crust-mantle Interaction
DOI10.1016/j.oregeorev.2017.09.006
文献子类Article
英文摘要The Matou Mo(-Cu) deposit, located in the Yangtze Valley Metallogenic Belt of central-eastern China, is a typical porphyry-type Mo deposit. The orebodies at the deposit are hosted by Matou porphyritic granodiorite, which is the largest intrusive in the area. Quartz vein-type and disseminated sulfide mineralization are well developed in the porphyry and near its contact with Silurian sandstone. Crosscutting relationships indicate that porphyritic granodiorite is the oldest phase in the pluton, which is crosscut by a porphyritic diorite containing traces of chalcopyrite, and later dolerite dykes. These phases have U-Pb zircon dates of 147 +/- 3, 140 +/- 1 and 135 +/- 1 Ma, which confirms the cross-cutting relationships observed in the field. A Re-Os molybdenite isochron age of 147 +/- 4 Ma indicates that the porphyritic granodiorite is the source of the oldest Mo mineralization in the metallogenic belt and was formed during a change of the tectonic setting in the area, from an intracontinental orogeny to extensional tectonics. From 147 to 135 Ma, crust-mantle interaction played an important role in the formation of magmatic rocks at Matou. Systematic petrological and geochemistry investigations reveal that the three phases have a crust source with minor input from the mantle. Investigation of ore-forming fluid, H-O isotopes, S isotopes, and the Re content of molybdenite indicate that the ore-forming fluid and metals were derived from the lower crust. During the evolution of fluid from initial magmatic fluids (stage I) to ore-forming fluids (stage II), fluid boiling accompanied by the input of relatively cooler meteoric water led to the deposition of the Mo mineralization.
WOS关键词HF ISOTOPIC CONSTRAINTS ; PB ZIRCON GEOCHRONOLOGY ; CU-AU MINERALIZATION ; SR-ND-PB ; CHIZHOU AREA ; DABIE OROGEN ; GEOLOGICAL SIGNIFICANCE ; COPPER MINERALIZATION ; GOLD MINERALIZATION ; MOLYBDENUM DEPOSITS
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000418978300026
资助机构Chinese Academy of Sciences(KZCX1-YW-15-3) ; Chinese Academy of Sciences(KZCX1-YW-15-3) ; National Natural Science Foundation of China(41102046) ; National Natural Science Foundation of China(41102046) ; Chinese Academy of Sciences(KZCX1-YW-15-3) ; Chinese Academy of Sciences(KZCX1-YW-15-3) ; National Natural Science Foundation of China(41102046) ; National Natural Science Foundation of China(41102046) ; Chinese Academy of Sciences(KZCX1-YW-15-3) ; Chinese Academy of Sciences(KZCX1-YW-15-3) ; National Natural Science Foundation of China(41102046) ; National Natural Science Foundation of China(41102046) ; Chinese Academy of Sciences(KZCX1-YW-15-3) ; Chinese Academy of Sciences(KZCX1-YW-15-3) ; National Natural Science Foundation of China(41102046) ; National Natural Science Foundation of China(41102046)
源URL[http://ir.iggcas.ac.cn/handle/132A11/93163]  
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Li, Guangming
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 Sci, Beijing 100049, Peoples R China
3.Univ Western Australia, Ctr Explorat Targeting, Crawley, WA 6009, Australia
4.CAGS, MLR Key Lab Metallogeny & Mineral Assessment, Inst Mineral Resources, Beijing 100037, Peoples R China
推荐引用方式
GB/T 7714		 Li, Guangming,Qin, Kezhang,Song, Guoxue,et al. The oldest Mo porphyry mineralization in the Yangtze Valley Metallogenic Belt of eastern China: Constraints on its origin from geochemistry, geochronology and fluid inclusion studies at Matou[J]. ORE GEOLOGY REVIEWS,2017,91:491-508.
APA Li, Guangming,Qin, Kezhang,Song, Guoxue,&Bagas, Leon.(2017).The oldest Mo porphyry mineralization in the Yangtze Valley Metallogenic Belt of eastern China: Constraints on its origin from geochemistry, geochronology and fluid inclusion studies at Matou.ORE GEOLOGY REVIEWS,91,491-508.
MLA Li, Guangming,et al."The oldest Mo porphyry mineralization in the Yangtze Valley Metallogenic Belt of eastern China: Constraints on its origin from geochemistry, geochronology and fluid inclusion studies at Matou".ORE GEOLOGY REVIEWS 91(2017):491-508.

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来源：地质与地球物理研究所

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