Response of Fluvial Landform of the Gyaca Sector of the Yarlung Zangbo River
详细信息
- 责任者：Zhu Song (Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Zhao Xitao
- 刊名：Acta Geoscientica Sinica
- 出版年：2011
- 卷期：32(3)
- 关键词：流水地貌 ; fluvial features ; 地壳运动 ; crustal movement ; 气候 ; climate ; 雅鲁藏布江 ; Yarlung Zangbo River
- 页码：p.349-356
- 图表：8 illus., 18 refs.
- 分类号：1400
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
摘要
Field investigations of the geomorphology of river valleys and tectonics in Gyaca sector of the Yarlung Zangbo River in Tibet show that the sector is characterized by a parallel type drainage pattern and narrow and wide valleys. The sector has undergone a tectonic evolution from collision through compression to extension, thus forming such tectonic deformation styles as folds-thrusts, strike-slip shear, rheological shear, normal faults and grabens. The geomorphology of river valleys in Gyaca sector has been controlled by tectonic movement and climate. The drainage system in Gyaca sector of the Yarlung Zangbo River has been formed by headward erosion along faults of different characteristics generated by tectonic movement and climate variation since Pliocene at least.
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