The Early Cretaceous magmatism and geological implication of Shanzhuping deposit in Shanghang region, Zijinshan ore field, Fujian Province, Southeast China
文献类型:期刊论文
作者 | Xie QiFeng3,4; Dong YunPeng4; Cai YuanFeng2; Zhai MingGuo1,4; Xiao AiFang3; Zhang Hong4; Bao ZhiAn4 |
刊名 | ACTA PETROLOGICA SINICA |
出版日期 | 2022-10-01 |
卷号 | 38期号:10页码:3037-3051 |
ISSN号 | 1000-0569 |
关键词 | Magmatism Early Cretaceous Shanzhuping deposit Zijinshan ore field Fujian Province |
DOI | 10.18654/1000-0569/2022.10.09 |
英文摘要 | Shanzhuping deposit is located in the southwestern Zijinshan ore field, Shanghang County, Fujian Province, develops the Au, Cu and Mo elements anomaly, and forms Au and Cu deposit. The granodiorite and monzogranite are selected for carrying on petrology, petrography, whole rock geochemistry, U-Pb geochronology and Lu-Hf isotope. Here we report the monzogranite and granodiorite Pb-206/U-238 weighted mean age at 105. 2Ma and 113. 4Ma. Combined with the zircon characteristics of magma oscillation and Th/U ratios, which reveals that there are two episodes magmatic activities of Late Yanshanian. The granodiorite and monzogranite share geochemical affinities with typical island arc, enriched Na element ( Na2O/K2O > 1), light rare earth element ( LREE), large icon lithophile element ( LIEE, such as Ba and K), and U, Th and Pb etc., depleted high field strength element ( HESE, such as Nb, Ta and Zr), and characterized with peraluminous ( A/CNK with 1. 19 similar to 1.68), medium ( La/Yb) N ( 13. 6 similar to 17. 4), and high Mg-#(45. 89 similar to 48. 53); slightly negative Eu anomaly (delta Eu ranges 0. 79 to 0. 97), and slightly positive Ce anomaly ( ranges 1. 0 similar to 1.08). The peak value of zircon two -stage Hf model age (t(DM2)) ranges of 1.05 similar to 1. 10Ga and 0.95 similar to 1. OGa, the epsilon(Hf)( t) ranges of -4. 47 similar to +2.38 ( mainly negative values) and -2. 73 similar to +1.47 (mainly positive values), respectively. Based on previous research results and opinions of this study, we infer that monzogranite derived from melting of Mesoproterozoic ancient basement in upper crust, while granodiorite derived from the Neoproterozoic crustal material and subjected to the contamination of mantle materials. The Shanzhuping deposit formed in Late Yanshanian island arc or active continent margin tectonic setting, which is closely related to paleoPacific plate subducted to Eurasian plate, and the southwest or south of which was predicted as two favorable exploration region. |
WOS关键词 | CRUST CONSTRAINTS ; TRACE-ELEMENTS ; U-PB ; DISCRIMINATION ; GEOCHEMISTRY ; PETROGENESIS ; HAFNIUM ; GROWTH |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | SCIENCE PRESS |
WOS记录号 | WOS:000905324300009 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/106839] |
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 | Xie QiFeng |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China 3.Fuzhou Univ, Zijin Sch Geol & Min, Fuzhou 350108, Peoples R China 4.Northwest Univ, State Key Lab Continental Dynam, Xian 710069, Peoples R China |
推荐引用方式 GB/T 7714 | Xie QiFeng,Dong YunPeng,Cai YuanFeng,et al. The Early Cretaceous magmatism and geological implication of Shanzhuping deposit in Shanghang region, Zijinshan ore field, Fujian Province, Southeast China[J]. ACTA PETROLOGICA SINICA,2022,38(10):3037-3051. |
APA | Xie QiFeng.,Dong YunPeng.,Cai YuanFeng.,Zhai MingGuo.,Xiao AiFang.,...&Bao ZhiAn.(2022).The Early Cretaceous magmatism and geological implication of Shanzhuping deposit in Shanghang region, Zijinshan ore field, Fujian Province, Southeast China.ACTA PETROLOGICA SINICA,38(10),3037-3051. |
MLA | Xie QiFeng,et al."The Early Cretaceous magmatism and geological implication of Shanzhuping deposit in Shanghang region, Zijinshan ore field, Fujian Province, Southeast China".ACTA PETROLOGICA SINICA 38.10(2022):3037-3051. |
入库方式: OAI收割
来源:地质与地球物理研究所
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