Late Mesozoic extensional structures and gold mineralization in Jiaodong Peninsula, eastern North China Craton: an inspiration from ambient noise tomography on data from a dense seismic array
文献类型：期刊论文
| 作者 | Yu GuiPing1,2; Xu Tao1,3; Liu JunTong2,4; Ai YinShuang2,3,4 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2020-05-01 |
| 卷号 | 63期号:5页码:1878-1893 |
| 关键词 | Jiaodong Peninsula Gold mineralization Extensional structure Short-period dense seismic array Ambient noise tomography |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2020N0446 |
| 英文摘要 | Research suggests that since the late Mesozoic, the eastern North China Craton has experienced large-scale lithospheric destruction characterized by lithospheric thinning. Under this context, large-scale extensional structures, widespread granitoid intrusions and massive gold deposits have been formed in Jiaodong Peninsula in the eastern North China Craton. In order to reveal the characteristics of ore-controlling structures in upper crust and their genetic linkage with gold mineralization, we probe the fine S-wave velocity structure of the shallow crust above 8km by using ambient noise tomography from a NWW-SEE trending linear short-period dense seismic array across Jiaodong Peninsula. Results show that (1) the sedimentary layer in Jiaodong Peninsula is generally thin, with an average basement depth about 1 similar to 2 km. (2) The vertical velocity gradient image shows that the dislocation of basement/shallow high-velocity discontinuity in northwest Jiaodong is significant, corresponding well to the main detachment faults, and the relative velocity disturbance image exhibits several banding low-velocity anomalies with SE tendency along the main detachment faults. (3) The S-wave velocity under the Muru metallogenic belt has a block feature in horizontal direction, which is consistent with the steeply dipping feature of ore-controlling faults such as the Wulian-Yantai fault zone, and the average velocity of upper crust in the Sulu orogenic belt is significantly higher than that in northwest Jiaodong. Based on the imaging results of this paper and other geological and geophysical data available, we suggest that northwest Jiaodong is mainly controlled by large-scale detachment faults represented by the Zhaoping fault, while the Muru metallogenic belt in the east is mainly controlled by steep brittle (strike-slip) faults with a relatively low degree of extension. And the differences of ore-controlling structures may be the main reason for regional differences of gold mineralization in Jiaodong Peninsula. |
| WOS关键词 | CRUSTAL VELOCITY STRUCTURE ; SURFACE-WAVE DISPERSION ; SHANDONG PROVINCE ; STRUCTURE BENEATH ; SOUTH CHINA ; FAULT ZONE ; TAN-LU ; DEPOSITS ; COLLISION ; TERRANE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000539702900013 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96927]  |
| 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 |
| 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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu GuiPing,Xu Tao,Liu JunTong,et al. Late Mesozoic extensional structures and gold mineralization in Jiaodong Peninsula, eastern North China Craton: an inspiration from ambient noise tomography on data from a dense seismic array[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2020,63(5):1878-1893. |
| APA | Yu GuiPing,Xu Tao,Liu JunTong,&Ai YinShuang.(2020).Late Mesozoic extensional structures and gold mineralization in Jiaodong Peninsula, eastern North China Craton: an inspiration from ambient noise tomography on data from a dense seismic array.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,63(5),1878-1893. |
| MLA | Yu GuiPing,et al."Late Mesozoic extensional structures and gold mineralization in Jiaodong Peninsula, eastern North China Craton: an inspiration from ambient noise tomography on data from a dense seismic array".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 63.5(2020):1878-1893. |
入库方式： OAI收割
来源：地质与地球物理研究所
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