| 青藏高原北缘断裂擦痕的构造分析 |
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| 引用本文： | 李有社,崔军文,高静,唐哲明. 青藏高原北缘断裂擦痕的构造分析[J]. 地球学报, 1997, 18(2): 129-133 |
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| 作者姓名： | 李有社 崔军文 高静 唐哲明 |
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| 作者单位： | 中国地质科学院岩石圈中心;中国地质科学院岩石圈中心;中国地质科学院岩石圈中心;中国地质科学院岩石圈中心 |
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| 摘 要： | 通过大量断层擦痕数据计算机处理和野外地质观察，作者将青藏高原北缘上新世以来的脆性构造应力场分为２期；上新世－中更新世，主压应力近于Ｓ－Ｎ；中更新世至今，主压应力方位为ＮＥ向和ＮＷ向；最后对青藏高原北缘的地球动力学过程作了分析。
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| 关 键 词： | 青藏高原北缘 构造应力场 擦痕 计算机处理 |
A Study on Tectonic Stress''s Field of Brittle Deformation in the Northern Tibet Qinghai Plateau |
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| LI You-she,CUI Jun-wen,GAO Jing and TANG Zhe-ming. A Study on Tectonic Stress''s Field of Brittle Deformation in the Northern Tibet Qinghai Plateau[J]. Acta Geoscientica Sinica, 1997, 18(2): 129-133 |
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| Authors: | LI You-she CUI Jun-wen GAO Jing TANG Zhe-ming |
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| Affiliation: | Lithosphere Research Centre, CAGS;Lithosphere Research Centre, CAGS;Lithosphere Research Centre, CAGS;Lithosphere Research Centre, CAGS |
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| Abstract: | Through field observation and computer processing of fault slip data, we divided the brittle tectonic stress' fields in the northern Tibet Qinghai plateau into two periods: Oligocene middle Pleistocene and middle Pleistocene Holocene. The maximum principal stress's orientation is approximately S N direction in the former period and N E in Altyn Taph and N W in Qilian respectively in the latter one. Meanwhile, geodyncmics of the northern Tibet Qinghai plateau is analysized. |
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| Keywords: | northern Tibet Qinghai plateau tectonic stress field fault slip computer processing |
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