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Geochronological and geochemical constraints on the formation of Chizhou Cu-Mo polymetallic deposits, middle and lower Yangtze metallogenic belt, eastern China
Xie, Jiancheng1; Tang, Dawei1; Xia, Dongmei1; Wang, Yu1; Li, Quanzhong1; Yang, Xiaoyong2; Sun, Weidong3,4,5
2019-06-01
Source PublicationORE GEOLOGY REVIEWS
ISSN0169-1368
Volume109Pages:322-347
Corresponding AuthorXie, Jiancheng(xiejiancheng08@163.com)
AbstractThe Cu-Mo polymetallic deposits are widespread in the Chizhou region, the Middle and Lower Yangtze River metallogenic belt, eastern China, but the formation of Cu-Mo polymetallic deposits remains unclear. Geochronological, geochemical and Sr-Nd-Hf isotopic compositions of the Cu-Mo polymetallic deposits in the Chizhou region are systemically investigated to reveal the formation of Cu-Mo polymetallic deposits and petrogenesis of the granodiorite (porphyry). The geochronological dating results show the formation ages of Cu-Mo polymetallic deposits (molybdenite Re-Os age, 151-148 Ma) and the granodiorites (porphyries) (zircon U-Pb age, 150-146 Ma) in the Chizhou region are simultaneous (within error). The Chizhou granodiorites (porphyries) (SiO2 = 62.9-65.7 wt%) are high-K calc-alkaline peraluminous I-type granodiorites. They have high Mg# (mainly > 40) values and low Na2O (< 4.3 wt%) contents, negative whole-rock epsilon(Nd)(t) (-5.83 to -5.71) and zircon epsilon(Hf)(t) (-12.7 to -3.03) values, high apatite Cl contents (> 0.2 wt%), and high log fO(2) values (-28.3 to -6.22). The distinctly chemical and isotopic compositions indicate that the Chizhou granodiorites formed from metasomatized mantle-derived magmas mixing with Neoproterozoic crustal components. The results indicate that the formation of the Cu-Mo polymetallic deposits in the Chizhou region may depend on the slab-derived Cl-enriched fluids, an oxidizing environment and a mantle-crust mixed source.
KeywordGeochronology Mantle-crust mixed Granodiorite (porphyry) Cu-Mo polymetallic deposit Chizhou region
DOI10.1016/j.oregeorev.2019.04.018
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2016YFC0600404] ; National Natural Science Foundation of China[41373045]
WOS Research AreaGeology ; Mineralogy ; Mining & Mineral Processing
WOS SubjectGeology ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:000472686500018
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/161978
Collection深海极端环境与生命过程研究中心
Corresponding AuthorXie, Jiancheng
Affiliation1.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Anhui, Peoples R China
2.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China
3.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266237, Shandong, Peoples R China
5.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Xie, Jiancheng,Tang, Dawei,Xia, Dongmei,et al. Geochronological and geochemical constraints on the formation of Chizhou Cu-Mo polymetallic deposits, middle and lower Yangtze metallogenic belt, eastern China[J]. ORE GEOLOGY REVIEWS,2019,109:322-347.
APA Xie, Jiancheng.,Tang, Dawei.,Xia, Dongmei.,Wang, Yu.,Li, Quanzhong.,...&Sun, Weidong.(2019).Geochronological and geochemical constraints on the formation of Chizhou Cu-Mo polymetallic deposits, middle and lower Yangtze metallogenic belt, eastern China.ORE GEOLOGY REVIEWS,109,322-347.
MLA Xie, Jiancheng,et al."Geochronological and geochemical constraints on the formation of Chizhou Cu-Mo polymetallic deposits, middle and lower Yangtze metallogenic belt, eastern China".ORE GEOLOGY REVIEWS 109(2019):322-347.
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