| 西藏札达盆地形成演化与喜马拉雅山隆升 |
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| 关键词:Zhada in Tibet Pliocene—Early Pleistocene basin evolution mountain uplift the Himalayas |
| 基金项目:国家自然科学基金项目(编号:40572134)，中国地质调查局项目“青藏高原第三纪重点古湖泊环境演变序列”(任务书编号:科[2005]005-02，工作项目编码:1212010511902) |
| 作者 | 单位 | | 朱大岗 | 中国地质科学院地质力学研究所,北京,100081 | | 孟宪刚 | 中国地质科学院地质力学研究所,北京,100081 | | 邵兆刚 | 中国地质科学院地质力学研究所,北京,100081 | | 杨朝斌 | 西藏自治区国土资源厅,拉萨,850000 | | 韩建恩 | 中国地质科学院地质力学研究所,北京,100081 | | 余佳 | 中国地质科学院地质力学研究所,北京,100081 | | 孟庆伟 | 中国地质科学院地质力学研究所,北京,100081 | | 吕荣平 | 中国地质科学院地质力学研究所,北京,100081 |
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| 摘要: |
| The Formation and Evolution of Zhada Basin in Tibet and the Uplift of the Himalayas |
| According to field geological investigation, stratigraphic section survey and indoor integrated studies, the authors have divided the evolution of Zhada basin during Pliocene_Early Pleistocene into six stages, namely, ① the initial fault depression, ② the accelerated fault depression, ③ the intense fault depression, ④ the stop of fault depression, ⑤ the second initial fault depression and ⑥ the second accelerated fault depression. On the basis of the shaping and evolution of Zhada basin, the uplift of the Himalayas has been divided into five stages, i.e., ① the slow uplift stage (5.4～4.4 Ma), ② the intermediate_speed uplift stage (4.4～3.5 Ma), ③ the high_speed uplift stage (3.5～3.2 Ma), ④ the stop of the uplift (3.2～2.7 Ma) and ⑤ the fast uplift stage (2.7 Ma). It is obviously shown that the uplift of the Himalayas is a complex process characterized by poly_stages, nonuniform velocity and nonuniformity. |
| ZHU Da-gang,MENG Xian-gang,SHAO Zhao-gang,YANG Chao-bin,HAN Jian'en,YU Jia,MENG Qing-wei,LÜ Rong-ping.2006.The Formation and Evolution of Zhada Basin in Tibet and the Uplift of the Himalayas[J].Acta Geoscientica Sinica,27(3):193-200. |
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