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  2. 地质与地球物理研究所
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  4. 岩石圈演化国家重点实验室
Metallogenic potential of the Wulong goldfield, Liaodong Peninsula, China revealed by high-resolution ambient noise tomography

文献类型：期刊论文

作者Zheng, Fan1,4; Xu, Tao1,3; Ai, Yinshuang3,4,6; Yang, Yingjie5; Zeng, Qingdong2,3,4; Yu, Bing2,4; Zhang, Wei5; Xie, Tongtong1,4
刊名ORE GEOLOGY REVIEWS
出版日期2022-03-01
卷号142页码:13
关键词Wulong goldfield Short-period dense seismic array Ambient noise tomography Shallow-crustal velocity structure Metallogenic potential
ISSN号0169-1368
DOI10.1016/j.oregeorev.2022.104704
英文摘要Wulong goldfield (WLGF) is situated in the Liaodong Peninsula, northeast of the North China Craton (NCC). During the Mesozoic, the eastern NCC was tectonically reworked, with the stress state to change from compression to extension, accompanied by a large amount of magmatism and extensive gold mineralization. To reveal the relationships among the intermediate to felsic plutons, fault structures, and gold mineralization in the WLGF, we deployed a short-period dense array (WSP array) consisting of 334 portable seismometers. We then processed the ambient noise data to extract a total of 45,531 group velocity dispersion curves with periods of 0.3 to 2.0 s. We adopted a direct inversion method to invert these dispersion curves to construct a 3D ambient noise tomography model of shear-wave velocity structures. The 3D model generated allows us to draw the following conclusions: (1) The model shows prominent NNE-and NW-trending low-velocity anomalies that are interpreted to be caused by the intense hydrothermal alteration related to the gold mineralization along some NNE-and NW trending faults; (2) The distribution of seismic velocity in the Early Cretaceous Sanguliu pluton in the southern WLGF is not homogeneous on account of its lithological variation, whereby compositional zoning is characterized by monzogranite in the centre and granodiorite in the margin; (3) The concealed NW-trending fault has a larger downward extension (>1.4 km) than that of the NNE-trending faults (similar to 1.0 km), indicating the NW trending faults played an ore-conducting role and the NNE-trending ones are likely the structures of ore distributing and/or ore-hosting for the Wulong gold metallogenic system; (4) We suggest three favourable potential areas for future exploration, all of which are located at and around the intersections of the NNE-and NW trending faults and are close to the known (or concealed) Early Cretaceous granite intrusions; (5) Our results demonstrate that ambient noise tomography based on the short-period dense seismic array is effective in determining metallogenic structures at orefield scale and has significant potential application in mineral exploration.
WOS关键词EASTERN NORTH CHINA ; ZIRCON U-PB ; SURFACE-WAVE TOMOGRAPHY ; SHALLOW CRUSTAL STRUCTURE ; GOLD DEPOSITS ; FLUID INCLUSIONS ; INTRUSIVE ROCKS ; LIAOHE GROUP ; H-O ; CRATON
资助项目National Key Research and Development Program of China[2016YFC0600101]
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000747596200001
出版者ELSEVIER
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/104023]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
地质与地球物理研究所_中国科学院地球与行星物理重点实验室
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Xu, Tao
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Southern Univ Sci & Technol, Shenzhen 518055, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zheng, Fan,Xu, Tao,Ai, Yinshuang,et al. Metallogenic potential of the Wulong goldfield, Liaodong Peninsula, China revealed by high-resolution ambient noise tomography[J]. ORE GEOLOGY REVIEWS,2022,142:13.
APA Zheng, Fan.,Xu, Tao.,Ai, Yinshuang.,Yang, Yingjie.,Zeng, Qingdong.,...&Xie, Tongtong.(2022).Metallogenic potential of the Wulong goldfield, Liaodong Peninsula, China revealed by high-resolution ambient noise tomography.ORE GEOLOGY REVIEWS,142,13.
MLA Zheng, Fan,et al."Metallogenic potential of the Wulong goldfield, Liaodong Peninsula, China revealed by high-resolution ambient noise tomography".ORE GEOLOGY REVIEWS 142(2022):13.

入库方式： OAI收割

来源：地质与地球物理研究所

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