干旱区生态环境知识资源中心(Arid): 西藏多庆错嘎拉错盆地第四纪湖相沉积与地质环境变化

Arid

	西藏多庆错嘎拉错盆地第四纪湖相沉积与地质环境变化
其他题名	Quaternary Lacustrine Deposition and Geological Environment Variations of Doqen Co-Gala Co Basin in Tibet
	张焜; 孙延贵; 巨生成; 马世斌
来源期刊	国土资源遥感
ISSN	1001-070X
出版年	2012
期号	1 页码:59-64
中文摘要	利用ETM,ASTER卫星遥感数据和DEM资料对西藏嘎拉错地区第四纪湖相沉积和地质环境进行了研究。结果表明:共和运动的差异隆升使藏南多庆错嘎拉错区中更新世湖相地层发生了强烈变形,而角度不整合面的存在则显示共和运动的存在;嘎拉错的急剧干涸可能是在全球性气候转暖的背景下,玛不错一线近东西向断隆成为盆地新的分水岭之后,入湖河流的断流所致;嘎拉错干枯导致该区大面积土地荒漠化,加剧了区域自然环境的恶化。
英文摘要	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.
中文关键词	多庆错 ; 嘎拉错 ; 第四纪 ; 湖相沉积 ; 地质环境
英文关键词	Duoqingcuo lake Galacuo lake quaternary period lacustrine deposition geological environment
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING
WOS研究方向	Remote Sensing
CSCD记录号	CSCD:4457360
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228221
作者单位	青海省地质调查院, 青海省青藏高原北祁连地质过程与矿产资源重点实验室, 西宁, 青海 810012, 中国
推荐引用方式 GB/T 7714	张焜,孙延贵,巨生成,等. 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],2012(1):59-64.
APA	张焜,孙延贵,巨生成,&马世斌.(2012).西藏多庆错嘎拉错盆地第四纪湖相沉积与地质环境变化.国土资源遥感(1),59-64.
MLA	张焜,et al."西藏多庆错嘎拉错盆地第四纪湖相沉积与地质环境变化".国土资源遥感 .1(2012):59-64.