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华南沿海莲花山断裂带控矿构造变形时限：来自锆石U-Pb年龄与地层时代的约束

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王晓虎, 张文高, 陈正乐, 周荣德, 陈柏林, 许典葵, 霍海龙, 李季霖, 张涛, 丁志磊, 李效壮. 2020. 华南沿海莲花山断裂带控矿构造变形时限：来自锆石U-Pb年龄与地层时代的约束[J]. 中国地质, 47(4): 985-997. doi: 10.12029/gc20200406
引用本文: 王晓虎, 张文高, 陈正乐, 周荣德, 陈柏林, 许典葵, 霍海龙, 李季霖, 张涛, 丁志磊, 李效壮. 2020. 华南沿海莲花山断裂带控矿构造变形时限：来自锆石U-Pb年龄与地层时代的约束[J]. 中国地质, 47(4): 985-997. doi: 10.12029/gc20200406
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WANG Xiaohu, ZHANG Wengao, CHEN Zhengle, ZHOU Rongde, CHEN Bailin, XU Diankui, HUO Hailong, LI Jilin, ZHANG Tao, DING Zhilei, LI Xiaozhuang. 2020. Deformation time limit of ore-controlling structures in Lianhuashan fault zone along the South China coast:Constraints from zircon U-Pb age and stratigraphic age[J]. Geology in China, 47(4): 985-997. doi: 10.12029/gc20200406
Citation: WANG Xiaohu, ZHANG Wengao, CHEN Zhengle, ZHOU Rongde, CHEN Bailin, XU Diankui, HUO Hailong, LI Jilin, ZHANG Tao, DING Zhilei, LI Xiaozhuang. 2020. Deformation time limit of ore-controlling structures in Lianhuashan fault zone along the South China coast:Constraints from zircon U-Pb age and stratigraphic age[J]. Geology in China, 47(4): 985-997. doi: 10.12029/gc20200406
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华南沿海莲花山断裂带控矿构造变形时限：来自锆石U-Pb年龄与地层时代的约束

  • 1.

    中国地质科学院地质力学研究所动力成岩成矿实验室, 北京 100081

  • 2.

    广东有色金属地质局931队, 广东 汕头 515041

  • 基金项目:
    中国地质调查项目(DD20160053、DD20190161)、基本科研业务费项目(YYWF201614，院所长基金46)共同资助
详细信息
    作者简介: 王晓虎, 男, 1983年生, 博士, 副研究员, 硕士生导师, 从事矿床学和构造控矿作用研究; E-mail:wangzykc@yeah.net

  • 中图分类号: P613

Deformation time limit of ore-controlling structures in Lianhuashan fault zone along the South China coast:Constraints from zircon U-Pb age and stratigraphic age

  • 1.

    Laboratory of Dynamic Diagenesis and Metallogenesis, Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China

  • 2.

    No. 931 Geological Party, Nonferrous Metals Geological Bureau of Guangdong Province, Shantou 515041, Guangdong, China

  • Fund Project: Supported by China Geological Survey Projects (No. DD20160053, No. DD20190161)and the projects of Basic Scientific Research Fund(No. YYWF201614, Academy and Institute Dean Foundation 46)
More Information
    Author Bio: WANG Xiaohu, male, born in 1983, doctor, associate researcher, supervisor of master candidates, engages in the study of mineral deposits and structural ore-controlling role; Email:wangzykc@yeah.net .

    摘要

  • 莲花山断裂带是中国东南沿海广东省境内一条重要的NE向断裂构造带，同时也是一条重要的锡、钨、铜、铅锌多金属成矿带。本文通过莲花山断裂带和典型矿区野外地质观测及断裂带内发生剪切变形作用的花岗岩体锆石U-Pb年龄测定，初步探讨了莲花山断裂带内韧性变形时限、脆性边界断裂发育时限，以及韧性剪切变形与成矿的关系。研究表明莲花山断裂带内韧性变形时限在129~127 Ma，脆性的边界断裂发育于官草湖组和合水组地层沉积时限之间，莲花山断裂带中韧性剪切变形早于成矿发生时间，韧性剪切变形为成矿提供了容矿空间。

    The Lianhuashan fault zone is not only an important NE-striking fault zone in Guangdong Province but also a significant tin, tungsten, copper, lead-zinc polymetallic metallogenic belt. Based on geological field observation of the Lianhuashan fault zone and the typical mining area as well as the measurement of the zircon U-Pb age of the granite intrusive with ductile deformation, the authors preliminarily investigated the time of ductile deformation and boundary fault and the relationship between deformation and mineralization in this paper. The result indicates that the ductile deformation time in the Lianhuashan fault zone is around 129-127 Ma, and the brittle boundary fault was developed between the sedimentary time of Guancaohu Formation and the Heshui Formation. The age of ductile shear deformation in the Lianhuashan fault zone was earlier than the mineralization time, and the ductile shear deformation provided the ore-bearing space for mineralization.

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  • 图 1  莲花山断裂带构造地质图(据邱元禧等，1988修编)

    Figure 1. 

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    图 2  莲花山断裂带大都镇-南山镇剖面图

    Figure 2. 

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    图 3  花岗岩野外露头、手标本及显微镜下照片

    Figure 3. 

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    图 4  锆石阴极发光及测点图

    Figure 4. 

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    图 5  锆石U-Pb年龄谐和图

    Figure 5. 

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    图 6  莲花山断裂带外围坪上—里湖剖面图

    Figure 6. 

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    图 7  莲花山断裂带外围龙窝—高潭路线观测图

    Figure 7. 

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    图 8  官草湖组、合水组和叶塘组地层特征

    Figure 8. 

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    图 9  金坑矿床矿体充填与闪锌矿脉充填特征

    Figure 9. 

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    图 10  莲花山断裂带不同矿床中矿物镜下特征

    Figure 10. 

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    图 11  高山寨钨多金属矿体及矿石特征

    Figure 11. 

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    表 1  莲花山断裂带韧性剪切变形花岗岩LA-ICP-MS锆石U-Pb同位素年龄结果

    Table 1.  Zircon LA-ICP-MS U-Pb analytical results of granite with ductile deformation in Lianhuashan fault zone

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收稿日期:  2019-09-18
修回日期:  2019-11-07
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