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Petrogenesis of Late Jurassic Pb-Zn mineralized high delta O-18 granodiorites in the western Nanling Range, South China

文献类型：期刊论文

作者Liu, Xiao1,2; Wang, Qiang1,2,3; Ma, Lin1; Wyman, Derek A.4; Zhao, Zhen-Hua5; Yang, Jin-Hui6; Zi, Feng7; Tang, Gong-Jian1,3; Dan, Wei1,3; Zhou, Jin-Sheng1
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2020-05-01
卷号192页码:17
ISSN号1367-9120
关键词Amphibole-bearing granite Partial melting of metasedimentary and metaigneous rocks Western Nanling Range South China
DOI10.1016/j.jseaes.2020.104236
英文摘要Amphibole-bearing granites are commonly considered to be I-type granites, derived by partial melting of igneous rocks. However, the contribution of sedimentary rocks to the source of such rocks is difficult to identify and remains debated. Here, we present a study of amphibole-bearing Pb-Zn mineralized granodiorites in the western Nanling Range of South China. LA-ICP-MS zircon U-Pb ages show that these granodiorites were generated during the Late Jurassic (ca. 161 Ma). They have variable SiO2 contents of 61.8-70.7 wt% and have high-K or shoshonitic characteristics, with varied Mg-# (0.28-0.54). These granodiorites are enriched in Th and U, and depleted in Nb, Ta and Ti. They display enriched light rare earth element (LREE) and flat heavy rare earth element (HREE) patterns, with slightly negative to negligible Eu anomalies (delta Eu = 0.74-0.95). Given their high zircon delta O-18 values (8.8 parts per thousand-11.9 parts per thousand), as well as negative epsilon(Nd)(t) (-7.5 to -5.1) and zircon epsilon(Hf)(t) (-13.9 to -7.5) values, we suggest that these Pb-Zn mineralized granodiorites in the western Nanling Range were derived mainly by partial melting of Middle Neoproterozoic mafic volcaniclastic rocks from the Nanhua rift basin, South China, in the lower crust. This study provides an important insight into the genesis of amphibole-bearing granites. We suggest that the partial melting of crustal metasedimentary and metaigneous rocks is an important mechanism for the Mesozoic crustal reworking of South China, and granodiorites generated by such a mechanism should also favor Pb-Zn mineralization.
WOS关键词ZIRCON U-PB ; HF-O ISOTOPES ; TRACE-ELEMENTS ; LU-HF ; VOLCANICLASTIC ROCKS ; HUNAN PROVINCE ; TECTONIC IMPLICATIONS ; MESOZOIC GRANITOIDS ; METAPELITIC ROCKS ; WORKING REFERENCE
资助项目National Key Research and Development Program of China[2016YFC0600407] ; Key Program of the Chinese Academy of Sciences[QYZDJ-SSW-DQC026] ; National Natural Science Foundation of China[41630208] ; Key Program of Guangzhou City[201707020032] ; Youth Innovation Promotion Association CAS[2017404] ; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIG-CAS) 135 project[135TP201601]
WOS研究方向Geology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000521111600026
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Program of the Chinese Academy of Sciences ; Key Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Guangzhou City ; Key Program of Guangzhou City ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIG-CAS) 135 project ; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIG-CAS) 135 project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Program of the Chinese Academy of Sciences ; Key Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Guangzhou City ; Key Program of Guangzhou City ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIG-CAS) 135 project ; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIG-CAS) 135 project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Program of the Chinese Academy of Sciences ; Key Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Guangzhou City ; Key Program of Guangzhou City ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIG-CAS) 135 project ; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIG-CAS) 135 project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Key Program of the Chinese Academy of Sciences ; Key Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Program of Guangzhou City ; Key Program of Guangzhou City ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIG-CAS) 135 project ; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIG-CAS) 135 project
源URL[http://ir.iggcas.ac.cn/handle/132A11/95499]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Wang, Qiang; Ma, Lin
作者单位1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Univ Sydney, Sch Geosci, Sydney, NSW 2006, Australia
5.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
7.Hunan Univ Sci & Technol, Sch Resource & Environm & Safety Engn, Xiangtan 411201, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Xiao,Wang, Qiang,Ma, Lin,et al. Petrogenesis of Late Jurassic Pb-Zn mineralized high delta O-18 granodiorites in the western Nanling Range, South China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2020,192:17.
APA Liu, Xiao.,Wang, Qiang.,Ma, Lin.,Wyman, Derek A..,Zhao, Zhen-Hua.,...&Zhou, Jin-Sheng.(2020).Petrogenesis of Late Jurassic Pb-Zn mineralized high delta O-18 granodiorites in the western Nanling Range, South China.JOURNAL OF ASIAN EARTH SCIENCES,192,17.
MLA Liu, Xiao,et al."Petrogenesis of Late Jurassic Pb-Zn mineralized high delta O-18 granodiorites in the western Nanling Range, South China".JOURNAL OF ASIAN EARTH SCIENCES 192(2020):17.

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来源：地质与地球物理研究所

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