期刊文献+

西藏江孜雅鲁藏布江结合带南缘断层带特征 被引量:1

The Fault Zone on the Southern Margin of the Yarlungzangbojiang Juncture
下载PDF
导出
摘要 雅鲁藏布江结合带南缘断层是雅鲁藏布江结合带与喜马拉雅地层区分区断层,大致呈东西向延伸。在西藏江孜县地区断层上盘为三叠系朗杰学群复理石沉积,表现为北东向褶皱和北东向逆冲断层组合;断层下盘为中生代地层褶皱冲带,以东西褶皱构造为主。断层带在江孜县白沙帕夏村以西出露宽约150m,划分出9个结构带,表现为强弱不等的韧脆性变形特征,断层面呈高角度"铲"式逆冲断层,断层倾向北西,走向北东东,断层性质为逆断层;断层微观运动方式以粘滑,断层最新的活动年龄中更新世。 The Fault on the southern margin of the Yarlungzangbojiang juncture lies between the Yarlungzangbojiang Juncture and the Himalayan stratigraphic division. In the Gyangzê region, the fault zone occurs as NE-trending fold and thrust association with the hanging side composed of flysch formation of the Triassic Namgyaixoi Group and the heading wall composed of the EW-trending Mesozoic fold-thrust zone. At Baishapaxia Village, Gyangzê, the fault zone is a high-angle thrust fault characterized by ductile-brittle deformation with a width of 150 m. The last faulting activity took place during Miocene-Pleistocene.
出处 《四川地质学报》 2016年第1期3-6,13,共5页 Acta Geologica Sichuan
关键词 断层带 喜马拉雅地层区 结合带 雅鲁藏布江 fault zone Himalayan stratigraphic division juncture Yarlungzangbo River
  • 相关文献

参考文献6

  • 1西藏地质局区调队.1∶100万日喀则幅、亚东幅区域地质调查报告[R].1983.
  • 2王立全,潘桂棠,等.青藏高原及邻区1∶1500000地质图及说明书[M].北京:地质出版社,2010.
  • 3四川省地矿局川西北地质队.西藏1∶5万江孜县等4幅区域地质矿产调查报告[R].2015.
  • 4中国地质大学(北京)地质调查研究院.1∶25万江孜县幅、亚东幅区域地质调查报告[R].2002.
  • 5Kanaorie Y.,Fracturing mode analysis and relative age dation of faults by surface textures of quartz grains from fault gouges 1983Engineering geology 19(3).
  • 6Kanaorie Y.,Tanaka K,Miyakoshi K.further studies on the use of quarty grains from fault gouges to establish the age of faulting.1985.Engineering geology 21(1-2).

同被引文献79

引证文献1

二级引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部