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Constraints on the Formation of the Shiwu Porphyry Cu-Au Deposit inWest Junggar, NW China: Insights from Tourmaline-Rich Igneous Rocks

文献类型：期刊论文

作者Wu, Chu5; Wang, Chengxi5; Hong, Tao4,6; Xu, Xingwang1,2,7; Zheng, Xiao5; Liang, Wanjuan5; Sun, Kefeng5; Zhang, Huijun5; Dong, Lianhui3,5,7; Wang, Bin5
刊名MINERALS
出版日期2023-04-28
卷号13期号:5页码:23
关键词tourmaline mineralization petrogenesis Shiwu porphyry Cu-Au deposit
DOI10.3390/min13050612
英文摘要Tourmaline tends to occur in porphyry Cu-Au deposits as an alteration or gangue mineral. However, abundant primary tourmalines in miarolitic cavities or interstitially distributed with other silicate minerals have been found in the Shiwu porphyry Cu-Au deposit in West Junggar, NW China. These tourmalines are normally accompanied by pyrite and have a high affinity for Cu and Au mineralization. A combined study of the petrology, geochronology, isotope, and mineral geochemistry data of the tourmaline-rich igneous rocks and the wallrock of tourmaline-poor pyroxene diorite has been completed. The laser ablation inductively coupled plasma mass spectrometry (LAICP-MS) U-Pb dating of zircons from tourmaline-poor pyroxene diorite, tourmaline-rich diorite, and tourmaline-rich andesite shows the ages of the zircons to be 317.0 +/- 1.0 Ma (MSWD = 0.37, n = 18), 315.8 +/- 1.0 Ma (MSWD = 0.84, n = 22), and 306.4 +/- 1.6 Ma (MSWD = 1.15, n = 15), respectively. The relatively low values of Hf isotopes ( (epsilon Hf)(t) = +6.0 to +13.6) suggest that the tourmaline-poor pyroxene diorite is sourced from a mixed melt of juvenile mantle materials with old crustal components. The tourmaline-rich diorite and the tourmaline-rich andesite that contain higher "Hf(t) values (ranging from +13.3 to +17.9) are mainly derived from juvenile mantle materials. In addition, the "Hf(t) values in the tourmaline-poor pyroxene diorite and the tourmaline-rich diorite (+13.3 to +16.1) and andesite (+16.3 to +17.9) are gradually rising with their age evolution, which indicates that more and more mantle-derived components are joining in their formation process. This process has also been recorded in primary tourmaline growth, e.g., the EPMA profile reveals an increase in the contents of Fe and other metals and a decrease in Al contents from the inside (core) to the outside (growth zoning). Therefore, the injection of mantle-derived magma that could supply the large amount of copper and gold was critical for the formation of the Shiwu porphyry Cu-Au deposit.
WOS关键词SOUTHERN WEST JUNGGAR ; U-PB ; EAST JUNGGAR ; TECTONIC EVOLUTION ; MO DEPOSIT ; FRACTIONAL CRYSTALLIZATION ; FLUID INCLUSION ; BASALTIC MAGMAS ; COPPER-DEPOSIT ; HF ISOTOPES
资助项目Project of Development and Research Center of China Geology Survey[DD20221785] ; Project of Development and Research Center of China Geology Survey[DD20230600] ; National Natural Science Foundation of China[41802093] ; National Natural Science Foundation of China[42272075] ; National Natural Science Foundation of China[42250202] ; Basic and Applied Basic Research Foundation of Guangdong Province[2022A1515010003] ; Project of Xinjiang Bureau of Geology and Mineral Resources[2011BAB06B03-3]
WOS研究方向Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
语种英语
出版者MDPI
WOS记录号WOS:000996569400001
资助机构Project of Development and Research Center of China Geology Survey ; Project of Development and Research Center of China Geology Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic and Applied Basic Research Foundation of Guangdong Province ; Basic and Applied Basic Research Foundation of Guangdong Province ; Project of Xinjiang Bureau of Geology and Mineral Resources ; Project of Xinjiang Bureau of Geology and Mineral Resources ; Project of Development and Research Center of China Geology Survey ; Project of Development and Research Center of China Geology Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic and Applied Basic Research Foundation of Guangdong Province ; Basic and Applied Basic Research Foundation of Guangdong Province ; Project of Xinjiang Bureau of Geology and Mineral Resources ; Project of Xinjiang Bureau of Geology and Mineral Resources ; Project of Development and Research Center of China Geology Survey ; Project of Development and Research Center of China Geology Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic and Applied Basic Research Foundation of Guangdong Province ; Basic and Applied Basic Research Foundation of Guangdong Province ; Project of Xinjiang Bureau of Geology and Mineral Resources ; Project of Xinjiang Bureau of Geology and Mineral Resources ; Project of Development and Research Center of China Geology Survey ; Project of Development and Research Center of China Geology Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic and Applied Basic Research Foundation of Guangdong Province ; Basic and Applied Basic Research Foundation of Guangdong Province ; Project of Xinjiang Bureau of Geology and Mineral Resources ; Project of Xinjiang Bureau of Geology and Mineral Resources
源URL[http://ir.iggcas.ac.cn/handle/132A11/111198]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Wang, Chengxi; Hong, Tao
作者单位1.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Xinjiang Bur Geol & Mineral Resources, Urumqi 830000, Peoples R China
4.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangdong Prov Key Lab Geodynam & Geohazards, Guangzhou 510275, Peoples R China
5.China Geol Survey, Dev & Res Ctr, Beijing 100037, Peoples R China
6.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China
7.Inst Geol & Geophys, Chinese Acad Sci, Key Lab Mineral Resources, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Chu,Wang, Chengxi,Hong, Tao,et al. Constraints on the Formation of the Shiwu Porphyry Cu-Au Deposit inWest Junggar, NW China: Insights from Tourmaline-Rich Igneous Rocks[J]. MINERALS,2023,13(5):23.
APA Wu, Chu.,Wang, Chengxi.,Hong, Tao.,Xu, Xingwang.,Zheng, Xiao.,...&Wang, Bin.(2023).Constraints on the Formation of the Shiwu Porphyry Cu-Au Deposit inWest Junggar, NW China: Insights from Tourmaline-Rich Igneous Rocks.MINERALS,13(5),23.
MLA Wu, Chu,et al."Constraints on the Formation of the Shiwu Porphyry Cu-Au Deposit inWest Junggar, NW China: Insights from Tourmaline-Rich Igneous Rocks".MINERALS 13.5(2023):23.

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来源：地质与地球物理研究所

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