...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geofluids >Numerical simulation of mylonitization and structural controls on fluid flow and mineralization of the Hetai gold deposit, west Guangdong, China
【24h】

Numerical simulation of mylonitization and structural controls on fluid flow and mineralization of the Hetai gold deposit, west Guangdong, China

机译：粤西河台金矿床成矿作用及成矿作用流体数值模拟的数值模拟

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Hetai gold deposit (HGD) is a typical altered mylonite type gold mine in a ductile shear zone in western Guangdong, China. Geomechanical simulations of the HGD were carried out in this paper to examine the importance of the dilation-driven fluid circulation in gold mineralization. The results show that three evenly-spaced NNE shear zones of enhanced dilation are produced in the study area. The calculated principal compressive stress in the X direction in these zones ranges between -420 and -650MPa, in line with estimates of ore-forming pressure (fluid pressure). Ore forming fluid is focused into these features, as observed in the field. The calculated differential stress decreases from 275 similar to 350 to 148 similar to 225MPa during the formation of mylonite zones. These, together with geological structural analysis and fluid pressure measurements, indicate that the mylonitization zone can provide a place of fluid focusing and a favorable environment for gold mineralization.
机译：河台金矿床（HGD）是位于中国广东西部延性剪切带中的典型蚀变的镍铁矿型金矿。本文对HGD进行了地质力学模拟，以研究膨胀驱动的流体循环在金矿化中的重要性。结果表明，研究区域产生了三个均匀分布的增强膨胀的NNE剪切带。在这些区域中，在X方向上计算出的主压应力在-420和-650MPa之间，这与成矿压力（流体压力）的估算相符。如在现场所观察到的，成矿流体集中在这些特征上。在形成镍铁矿带的过程中，计算出的差应力从275类似于350 MPa减小到148类似于225MPa。这些，连同地质结构分析和流体压力测量结果一起，表明了髓鞘化带可以为流体聚集提供一个场所，并为金矿化提供了有利的环境。

著录项

  • 来源
    《Geofluids》 |2014年第2期|221-233|共13页
  • 作者

    Zhu J.; Li Z.; Lin G.; Zeng Q.; Zhou Y.; Yi J.; Gong G.; Chen G.;

  • 作者单位

    Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China|Beijing Inst Geol Mineral Resources BIGM, Beijing, Peoples R China;

    Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China;

    Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China;

    Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China;

    Beijing Gen Res Inst Min & Met, Beijing, Peoples R China;

    Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China;

    Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China;

    Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    mylonitization; numerical simulation; structure-fluid mineralization; the Hetai gold deposit;

    机译：矿化作用;数值模拟;结构流体成矿作用;河台金矿床;成矿作用;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号