中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The oxidized granitoids facilitated the formation of Early Cretaceous molybdenum mineralization in the Jiaodong region, China

文献类型:期刊论文

作者Yan, Maoqiang5; Li, Jie1,5; Zhang, Lipeng5; Sun, Weidong2,3,5; Li, Congying4,5
刊名ORE GEOLOGY REVIEWS
出版日期2024-03-01
卷号166页码:14
关键词Porphyry Mo deposit Magma oxygen fugacity Zircon trace elements Hf -O isotope Mesozoic magmatism
ISSN号0169-1368
DOI10.1016/j.oregeorev.2024.105931
通讯作者Li, Congying(licongying@qdio.ac.cn)
英文摘要Oxygen fugacity is a key factor in controlling the formation of porphyry molybdenum deposits. We present new data on Lengjia monzogranite and compile the Mesozoic magmatism data of the Jiaodong Peninsula to elucidate the correlation between magma oxygen fugacity and porphyry Mo mineralization. Zircon U -Pb geochronology indicates that the formation of the Lengjia monzogranite occurred at 113.7 Ma, while molybdenite Re -Os geochronology shows that the Lengjia Mo deposit was formed at 113.5 +/- 3.0 Ma. The Lengjia monzogranite, characterized by low Sr/Y ratios (12.28 - 20.16), low Sr, and high Yb and Y concentrations, can be classified as a non-adakite I -type granite. It had low zircon epsilon Hf (t) values (-23.8 - -13.8) and ancient TDM2 (Hf) (2047-2680 Ma) with variable zircon O isotopic compositions (5.82 %o - 7.38 %o). The Lengjia monzogranite was formed by partial melting of the Paleoproterozoic crustal source and mantle components metasomatized by slab-derived melt. The zircon trace element calculation revealed that the Weideshan suite had higher Delta FMQ values (0.32 - 4.47, average is 2.27) compared to the Guojialing suite (-0.91 - 2.88, average is 0.82) and Linglong suite (-1.81 - 2.76, average is 0.37). The oxidized Weideshan suite resulted from the increased involvement of mantle metasomatized by slab-derived melt. The elevated oxygen fugacity promoted the porphyry Mo-metallogenic potential of the Weidshanian suite. We propose that the Linglong suite was related to the northwestward flatslab (subhorizontal) subduction of the Izanagi plate (Paleo-Pacific plate), the Guojialing suite was formed by low-angle northwestward subduction of the Izanagi plate, and the Weideshan suite was related to the northwestward subduction and major slab rollback of the Pacific plate.
WOS关键词PORPHYRY MO DEPOSITS ; YANGTZE-RIVER BELT ; HF-O ISOTOPES ; ZIRCON U-PB ; OXIDATION-STATE ; EASTERN CHINA ; TRACE-ELEMENT ; CU DEPOSITS ; GOLD MINERALIZATION ; NORTHEASTERN CHINA
资助项目National Natural Science Founda- tion of China[42176070] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2020212] ; Laoshan Laboratory[LSKJ202204100]
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
WOS记录号WOS:001188148900001
出版者ELSEVIER
源URL[http://ir.qdio.ac.cn/handle/337002/184941]  
专题海洋研究所_深海极端环境与生命过程研究中心
通讯作者Li, Congying
作者单位1.Hebei GEO Univ, Hebei Key Lab Strateg Crit Mineral Resources, Shijiazhuang, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Laoshan Lab, Deep Sea Multidisciplinary Res Ctr, Qingdao 266237, Peoples R China
4.Lab Marine Mineral Resources, Laoshan Lab, Qingdao 266237, Peoples R China
5.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China
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Yan, Maoqiang,Li, Jie,Zhang, Lipeng,et al. The oxidized granitoids facilitated the formation of Early Cretaceous molybdenum mineralization in the Jiaodong region, China[J]. ORE GEOLOGY REVIEWS,2024,166:14.
APA Yan, Maoqiang,Li, Jie,Zhang, Lipeng,Sun, Weidong,&Li, Congying.(2024).The oxidized granitoids facilitated the formation of Early Cretaceous molybdenum mineralization in the Jiaodong region, China.ORE GEOLOGY REVIEWS,166,14.
MLA Yan, Maoqiang,et al."The oxidized granitoids facilitated the formation of Early Cretaceous molybdenum mineralization in the Jiaodong region, China".ORE GEOLOGY REVIEWS 166(2024):14.

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来源:海洋研究所

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