| 北祁连逆掩断裂带的缓倾角断层 |
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| 引用本文： | 费琪,王燮培,曾晓明.北祁连逆掩断裂带的缓倾角断层[J].地球科学,1986(3). |
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| 作者姓名： | 费琪 王燮培 曾晓明 |
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| 作者单位： | 武汉地质学院
(费琪，王燮培)，石油部玉门石油管理局(曾晓明) |
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| 摘 要： | 本文阐述了北祁连逆掩带中缓倾角断层的结构特征和地质意义。这些断层是本区走向北西西、断面南倾的区域逆冲断裂系的组成部分,断距大小不等,显示出一定规模的推覆构造型式。文中把本区和典型的逆掩推覆构造作了对比,并推断了这种缓倾角断层的演化模式。此项研究为进一步评价酒泉盆地以至河西走廊的含油远景提供了构造研究基础。
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| 关 键 词： | 缓倾角断层 逆掩断裂 油气远景评价 阶梯状断层 叠瓦断层 重力滑动 重力扩展 |
LOW ANGLE FAULTS IN NORTH QILIAN OVERTHRUSTS |
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| Fei Qi,Wang Xiepei.LOW ANGLE FAULTS IN NORTH QILIAN OVERTHRUSTS[J].Earth Science-Journal of China University of Geosciences,1986(3). |
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| Authors: | Fei Qi Wang Xiepei |
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| Abstract: | The structural characteristics and geological significance of the low angle faults found in North Qilian overthrusts are discussed in this paper. These faults are part of the regional overthrust system trending NWW, dipping S, which has different throw ranging from hundreds to thousands meters and shows a nappe pattern. The authors compared the structures of this area with the typical nappe patterns and proposed a evolution model of the low angle faults. The work has provided a tectonic background for further evaluation of petroleum perspective in Jiuquan basin or even Hexi corridor. |
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| Keywords: | low angle fault overthrust evaluation of petroleum perspective step fault imbricated fault gravity sliding gravity spreading |
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