藏北西部鲁玛江冬错地区新构造运动特征
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摘要
从地貌(断块山地及水系特征)、活动断裂和地震标志3个方面新构造运动的表现形式,阐述了西藏鲁玛江冬错地区新构造运动活动特征,并对晚新生代以来(尤其是早更新世以来)青藏高原地形的演化趋势进行了论述。晚新生代,尤其是早更新世以来,高原南北两侧的陆内俯冲仍然继续强烈进行,主夷平面瓦解,大型断陷盆地形成,高原整体继续强烈上升。高原主体正是经历了由此开始的新构造运动,才逐渐形成目前的地貌特征。
Based on the three aspects of the neotectonic movement as landform features(faulted mountains and water system features),active faults features and earthquake traces,the authors depicted in details the characteristics of the neotectonic movement in Lumajiangdongcuo region of Tibet,and expounded the trends of Qinghai-Tibet Plateau terrain since late Cenozoic Era(especially since the early Pleistocene).According to the above characteristic analyses,the authors considered that since late Cenozoic Era,especially the early Pleistocene,the intra-continental subduction in the southern and northern sides of the plateau continued to carry on intensively,the main plantation surface smashed,the large fault basin formed,and the all Qinghai-Tibet Plateau continued to uplift violently.The main body of the plateau underwent the above neotectonic movement,till the present landform characteristics gradually formed.
Based on the three aspects of the neotectonic movement as landform features(faulted mountains and water system features),active faults features and earthquake traces,the authors depicted in details the characteristics of the neotectonic movement in Lumajiangdongcuo region of Tibet,and expounded the trends of Qinghai-Tibet Plateau terrain since late Cenozoic Era(especially since the early Pleistocene).According to the above characteristic analyses,the authors considered that since late Cenozoic Era,especially the early Pleistocene,the intra-continental subduction in the southern and northern sides of the plateau continued to carry on intensively,the main plantation surface smashed,the large fault basin formed,and the all Qinghai-Tibet Plateau continued to uplift violently.The main body of the plateau underwent the above neotectonic movement,till the present landform characteristics gradually formed.
引文
[1]西藏地质矿产局.西藏自治区区域地质志[M].北京:地质出版社,1993.
[2]中国科学院青藏高原综合科学考察队.青藏高原隆起的时代、幅度和形成问题[M].北京:科学出版社,1981.
[3]潘桂棠,王培生,徐耀荣,等.青藏高原新生代构造演化[M].北京:地质出版社,1990.
[4]李吉均,文世宣,张青松,等.青藏高原隆起的时代、幅度和形式的探讨[J].中国科学,1979(6):608-616.
[5]施雅凤,李吉均,李炳元,等.晚新生代青藏高原的隆升与东亚环境变化[J].地理学报,1999(1):10-21.
[6]李吉均,方小敏.青藏高原隆起与环境变化研究[J].科学通报,1998,43(15):1569-1574.
[7]邓万明.青蒇高原北部新生代板内火山岩[M].北京:地质出版社,1998.
[8]李德威.青蒇高原南部晚新生代板内造山与动力成矿[J].地学前缘,2004(10):361-364.
[2]中国科学院青藏高原综合科学考察队.青藏高原隆起的时代、幅度和形成问题[M].北京:科学出版社,1981.
[3]潘桂棠,王培生,徐耀荣,等.青藏高原新生代构造演化[M].北京:地质出版社,1990.
[4]李吉均,文世宣,张青松,等.青藏高原隆起的时代、幅度和形式的探讨[J].中国科学,1979(6):608-616.
[5]施雅凤,李吉均,李炳元,等.晚新生代青藏高原的隆升与东亚环境变化[J].地理学报,1999(1):10-21.
[6]李吉均,方小敏.青藏高原隆起与环境变化研究[J].科学通报,1998,43(15):1569-1574.
[7]邓万明.青蒇高原北部新生代板内火山岩[M].北京:地质出版社,1998.
[8]李德威.青蒇高原南部晚新生代板内造山与动力成矿[J].地学前缘,2004(10):361-364.
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