...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Australian Journal of Earth Sciences >Pore-structure characterisation of tectonically deformed shales: a case study of Wufeng-Longmaxi Formation in western Hunan Province, southern China
【24h】

Pore-structure characterisation of tectonically deformed shales: a case study of Wufeng-Longmaxi Formation in western Hunan Province, southern China

机译：南方湖南省湖南省武丰 - 龙米新联的孔隙结构特征

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 impacts of tectonic deformation on pore structure of the Wufeng-Longmaxi shales in southern China were studied on tectonically deformed shales. Core description, thin-section observation, total organic carbon, X-ray diffraction, low-pressure gas (N-2 and CO2) adsorption, mercury intrusion capillary pressure and field emission-scanning electron microscopy experiments were performed. The undeformed shale (UDS), brittle deformed shale (BDS) and ductile deformed shale (DDS) can be sorted based on the variability of original texture, fabric and structure properties of the shale samples. In addition, shale samples with different deformation mechanisms have various pore-structure characteristics. Organic matter pores and interparticle pores in clay minerals are the dominant pore types in the selected shale samples. The BDS sample has a greater proportion of macropores (or micro-fractures), indicating brittle tectonic deformation has a significant effect on the development of macropores in shales. In contrast, the DDS sample has more micropores than the UDS and BDS samples, suggesting ductile tectonic deformation may damage larger pores owing to the compression by complex tectonic stress.
机译：在构造变形的Hales中研究了中国南方武力龙达利孔子孔隙结构对构造变形的影响。核心描述，薄截面观察，总有机碳，X射线衍射，低压气体（N-2和CO2）吸附，汞侵入毛细管压力和场发射扫描电子显微镜实验。可以根据原始纹理，织物和结构特性的原始纹理，织物和结构性质的可变性来对未变形的页岩（UDS），脆性变形页岩（BDS）和延展性变形页岩（DDS）进行分类。此外，具有不同变形机制的页岩样品具有各种孔隙结构特性。粘土矿物质中的有机物质孔和颗粒孔是所选页岩样品中的显性孔隙类型。 BDS样品具有较大比例的大孔（或微骨折），表明脆性构造变形对Shales中大孔的发育具有显着影响。相反，DDS样品具有比UDS和BDS样品更多的微孔，表明延性构造变形可能由于通过复杂构造应力而受到压缩而损坏孔隙较大的孔隙。

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