Quaternary Lacustrine Deposition and Geological Environment Variations of Doqen Co-Gala Co Basin in Tibet
ZHANG Kun1,2, SUN Yan-gui1,2, JU Sheng-cheng1,2, MA Shi-bin1,2
1. Center of Remote Sensing, Institute of Geological Survey of Qinghai Province, Xining 810012, China; 2. Qinghai-Tibet Plateau During the North Qilian Geology and Mineral Resources Laboratory of Qinghai Province, Xining 810012, China
Abstract:To verify the lacustrine deposition and geological environment in Gala Co of Tibet in Quaternary Period, the authors carried out studies in this aspect by using remote sensing technologies such as DEM, ETM and ASTER interpretation images, The results show that severe deformation of lake deposition in southern Tibet during Middle Pleistocene epoch was caused by differential uplift of Gonghe movement, and angular unconformity proved the existence of this movement. It is held that the drastic drying of Gala Co was caused by its running dry after the adjacent Mabu Co had become a new dividing range in the basin as a consequence of global warming. The dryness of Gala Co has caused desertification in the region and worsened the regional natural environment.
张焜, 孙延贵, 巨生成, 马世斌. 西藏多庆错—嘎拉错盆地第四纪湖相沉积与地质环境变化[J]. 国土资源遥感, 2012, 24(1): 59-64.
ZHANG Kun, SUN Yan-gui, JU Sheng-cheng, MA Shi-bin. Quaternary Lacustrine Deposition and Geological Environment Variations of Doqen Co-Gala Co Basin in Tibet. REMOTE SENSING FOR LAND & RESOURCES, 2012, 24(1): 59-64.