| 滇西一些新生代飞来峰的构造演化 |
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| 引用本文： | 王二七,王世锋,樊春,王刚.滇西一些新生代飞来峰的构造演化[J].地质科学,2006,41(1):170-180. |
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| 作者姓名： | 王二七 王世锋 樊春 王刚 |
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| 作者单位： | 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室 北京 100029 |
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| 基金项目： | 科技部科研项目，中国科学院知识创新工程项目，中国科学院资助项目 |
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| 摘 要： | 在印度和欧亚大陆相互作用下,滇西三江造山带在新生代中期发生了强烈的东西向缩短,地壳物质的大规模推覆作用形成众多的飞来峰。野外调查发现:这些飞来峰中有的在就位后没有再发生过变形,如分布在兰坪——思茅盆地中段的无量山东北山麓一带的一系列上三叠统灰岩飞来峰;有的飞来峰在就位后再次遭受到强烈的变形,如分布在兰坪盆地金顶一带的上三叠统灰岩飞来峰,在渐新世时与下伏岩层一同卷入了强烈的褶皱变形;分布在大理地区鹤庆盆地西侧的中三叠统灰岩飞来峰因受到后期东西向伸展构造的破坏,已被改造成分选极差的重力滑塌沉积。这些古近纪飞来峰由于在就位后再次发生了变形,所以不应称之为飞来峰,应称为异地岩或者是外来岩块。
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| 关 键 词： | 三江造山带 飞来峰 褶皱 重力滑塌 异地岩 原地岩 |
| 文章编号： | 0563-5020（2006）01-0170-11 |
| 收稿时间： | 2005-01-07 |
| 修稿时间： | 2005-01-072005-05-20 |
TECTONIC EVOLUTION OF SOME CENOZOIC KLIPPEN IN WESTERN YUNNAN |
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| Wang Erchie,Wang Shifeng,Fan Chun,Wang Gang.TECTONIC EVOLUTION OF SOME CENOZOIC KLIPPEN IN WESTERN YUNNAN[J].Chinese Journal of Geology,2006,41(1):170-180. |
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| Authors: | Wang Erchie Wang Shifeng Fan Chun Wang Gang |
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| Institution: | Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | The Sanjiang (Three River) orogenic belt was experienced intensive E-W shortening, accommodated mainly by thrusting, in middle Tertiary time due to the interaction between the Indian and Eurasian continents, resulted in many klippen. Based on our field observation and structural study, some of these klippen have remained undeformed since they settled down, as those formed by Triassic limestone, distributed in the northeastern piedmont of the Wuliang Shan belt. Whereas those occurred within the Lanping Basin and the Dali Block have experienced strong deformation. The former, formed by the Late Triassic limestone, was shortened along a series of the N-trending folds and thrust faults, and the latter, consisting of Middle Triassic limestone, was experienced strong extensional deformation and broken into pieces with various size, suggestive of landslide deposits. These deformed Middle Cenozoic klippen have lost their original features of the klippen and should be termed as either allochthon or exotic blocks. |
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| Keywords: | The Sanjiang orogen Klippen Fold Gravitational sliding Allochthon Autochthon |
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