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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
Li, Guangming1,2; Qin, Kezhang1,2; Song, Guoxue1,2; Bagas, Leon3,4
2017-12-01
Source PublicationORE GEOLOGY REVIEWS
ISSN0169-1368
Volume91Pages:491-508
SubtypeArticle
AbstractThe 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.
KeywordYangtze Valley Metallogenic Belt Matou Oldest Mo Porphyry Mineralization Fluid Boiling Co2-rich Inclusions Crust-mantle Interaction
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.oregeorev.2017.09.006
Funding OrganizationChinese 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)
WOS KeywordHF ISOTOPIC CONSTRAINTS ; PB ZIRCON GEOCHRONOLOGY ; CU-AU MINERALIZATION ; SR-ND-PB ; CHIZHOU AREA ; DABIE OROGEN ; GEOLOGICAL SIGNIFICANCE ; COPPER MINERALIZATION ; GOLD MINERALIZATION ; MOLYBDENUM DEPOSITS
Indexed BySCI
Language英语
Funding OrganizationChinese 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)
WOS Research AreaGeology ; Mineralogy ; Mining & Mineral Processing
WOS SubjectGeology ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:000418978300026
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/93163
Collection矿产资源研究院重点实验室
Corresponding AuthorLi, Guangming
Affiliation1.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
Recommended Citation
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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