湘西雪峰山中段金锑矿区控矿构造<i>X</i>射线岩石组构特征及其力学分析

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湘西雪峰山中段金锑矿区控矿构造X射线岩石组构特征及其力学分析

基金项目:

国家计委“黔阳地区金锑矿控矿条件及靶区优选”专项课题(95-04)和国土资源部地质力学开放研究实验室基金项目(95007)

1. Institute of Geomechanics, CAGS, Beijing 100081, China;
2. 407 Geological Party of Hunan Bureau of Geology and Mineral Resources, Huaihua 418000, China

摘要: 该文从总结雪峰山中段金锑矿区构造控矿规律和成矿预测的角度,采用X射线衍射法开展了成矿期控矿构造带的韧-脆性变形岩石组构的研究。根据X射线岩组图特征分析探讨了岩石变形时的力学性质、主应力方位,并结合宏观地质特征对控矿构造进行了运动学和动力学分析,得出NE向构造带为压扭性导矿、控矿构造,运动方向为SE-NW,主压应力属NW-SE系统;NW向构造带为张扭性容矿构造,属NE向的伴生或派生构造。
- 控矿构造 /
- X射线衍射法 /
- 岩石组构 /
- 力学分析 /
- 雪峰山
Abstract: A study of the fabrics of ductile-brittle rock deformation during the mineralization epoch by X-ray diffraction method is made. The aim is to find out the structural control of the gold and antimony in the Mid-Xuefeng Mountain so as to predict its distribution and enrichment. The results show that the NE-trending compresso-shear structural belt may serve as the passage way for the SE-NW ore fluid flow under a stress regime with the greatest principal stress trending NW-SE, and the NW-SE trending tenso-shear structural belt associated with and derived from the NE-SW-striking structures as the host structure and described.
- ore-controlling structure /
- X-ray diffraction method /
- rock fabric /
- Xuefengshan /