• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Brazilian Journal of Geology >Structural characterization of the internal domain of Paraguai Belt, in the Cangas region, south central portion of Mato Grosso, Brazil
【24h】

Structural characterization of the internal domain of Paraguai Belt, in the Cangas region, south central portion of Mato Grosso, Brazil

机译：巴西马托格罗索州中南部坎加斯地区巴拉圭带内部区域的结构特征

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The structural study of rocks in the district of Cangas showed the identification of three phases of deformation for the Cuiabá Group in this region. The main structure oriented 120/27 is related to the first phase of deformation defined by a slate cleavage, parallel to the bedding and to the axial plane of recumbent folds. In the early stages of this phase a family of quartz veins (V1) was generated, arranged parallel to the structures of this phase of deformation, being all almost deformed. The second phase of deformation formed a crenulation cleavage (Sn+1), axial plane of opened to gentle and asymmetric normal folds, with preferential orientation 110/68. The third phase of deformation is represented by a set of centimetric to decametric scale fractures and faults with metric slip that cut all previous structures, with orientations 35/82. Related to this phase of deformation occurs a second family of quartz veins (V2), which fills the fractures related to Dn+2 and may or may not be carrying gold mineralization.
机译：坎加斯地区岩石的结构研究表明，该地区Cuiabá组的变形分为三个阶段。定向为120/27的主要结构与第一阶段的变形有关，该变形的第一阶段是由板岩劈开所定义的，平行于层理和倾斜褶皱的轴向平面。在该阶段的早期阶段，生成了一系列石英脉（V1），它们平行于该变形阶段的结构排列，几乎都变形了。变形的第二阶段形成了锯齿状开裂（Sn + 1），其轴向平面张开至平缓且不对称的法向褶皱，优先取向为110/68。变形的第三阶段由一组公制到十公制的尺度断裂和断层带公制滑动来表示，这些断裂和断层切割了所有先前的结构，方向为35/82。与该变形阶段有关的是第二族石英脉（V2），它填充了与Dn + 2有关的裂缝，并且可能携带或可能不携带金矿化。

著录项

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