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| 滇西北新生代逆冲推覆构造 | |
| 引用本文： | 沙绍礼,殷质豫,夏抱本.滇西北新生代逆冲推覆构造[J].云南地质,2004,23(2):154-163. |
| 作者姓名： | 沙绍礼 殷质豫 夏抱本 |
| 作者单位： | 1. 云南省地质矿产勘查局第三地质大队,云南,大理,671000 2. 西南有色地质勘查局310队,云南,大理,671000 3. 西藏地质勘查开发局区调大队,西藏,拉萨,850000 |
| 摘 要： | 滇西北地区新生代逆冲推覆构造较为发育，从西到东可分出走向NS、相互平行的4带：澜沧江带，云岭带，石钟山带和剑川-洱源带。其中，澜沧江带与云岭带组成对冲格局，云岭带又与石钟山带组成反冲格局，石钟山带与剑川-洱源带又组成对冲格局。参与逆冲推覆的地层主要是中生代三叠系、侏罗系、白垩系及新生代云龙组、宝相寺组，推覆体由石炭系、二叠系、上三叠统岩石组成。逆冲推覆时间为喜马拉雅期。 |
| 关 键 词： | 逆冲推覆构造 时空特点 新生代 滇西北 |
| 文章编号： | 1004-1885(2004)02-154-10 |
THE CENOZOIC THRUSTING NAPPE IN NORTHWEST YUNNAN |
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| SHA Shao-liYIN Zhi-yuXia Bao-ben.THE CENOZOIC THRUSTING NAPPE IN NORTHWEST YUNNAN[J].Yunnan Geology,2004,23(2):154-163. | |
| Authors: | SHA Shao-liYIN Zhi-yuXia Bao-ben |
| Institution: | SHA Shao-li~1YIN Zhi-yu~2Xia Bao-ben~3 |
| Abstract: | In the northwest Yunnan, the Cenozoic thrusting nappe is well developed, which can be divided into 4 zones with south-northward parallel strike, ie Lancangjiang, Yunling, Shizhongshan and Jianchuan-Eryuan zones from west to east. The Lancangjiang zone and Yunling zone form a syn-thrusting pattern, whereas the latter and Shizhongshan zone form an anti-thrusting pattern. And the Shizhongshan zone and Jianchuan-Eryuan zone form a syn-thrusting pattern. The strata involved in the thrusting nappe movement are mainly Triassic, Jurassic, Cretaceous and Cenozoic Yunlong Formation, Baoxiangsi Formation. The nappe is composed by Carboniferous, Permian and late Triassic rocks and the age of the thrusting nappe movement is Himalayan. |
| Keywords: | Thrusting Nappe Time-Space Characteristics Cenozoic Northwest Yunnan |
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