| 成都平原的形成与演化 |
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| 引用本文： | 钱洪,唐荣昌.成都平原的形成与演化[J].四川地震,1997(3):1-7. |
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| 作者姓名： | 钱洪 唐荣昌 |
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| 作者单位： | 四川省地震局 |
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| 摘 要： | 成都平原是位于青藏高原东南侧前缘的第四纪压陷盆地，东西两侧分别被龙泉山和龙门山所限。研究表明，成都平原的第四纪断陷作用从大邑－彭县－绵竹隐伏断裂和浦江－新津－成都－德阳断裂所夹的北东向断块的为民陷开始，然后向东西两侧扩展。不同断裂在不同时代的逆冲运动对成都平原的形成和演化起重要的制约作用。
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| 关 键 词： | 第四纪 构造运动 龙门山 四川 盆地构造 |
ON THE FORMATION AND EVOLUTION OF THE CHENGDU PLAIN |
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| Qian Hong,Tang Rongchang.ON THE FORMATION AND EVOLUTION OF THE CHENGDU PLAIN[J].Earthquake Research in Sichuan,1997(3):1-7. |
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| Authors: | Qian Hong Tang Rongchang |
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| Institution: | Seismological Bureau of sichuan Province |
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| Abstract: | Chengdu plain limited by the Longmenshan on the west and the Longquanshan on the east is a pressed fault depression basin in quaternary at the front of southeastern border of Qinghai Xizang plateau. From present research, the depression of Chengdu plain began with northeast trending fault block that bordered by the Dayi-Pengxian-Mianzhu buried fault on the west and the Pujiang-Xinin-Chengdu-Deyang fault on the east, and t hen developed toward two sides.Thrusting on different faults at different time play an important rule in the formation and develop ment of the Chengdu plain. During the formation of Chengdu plain, thrusting and pushing of the Longmenshan nappe zone resulted not only in reactive of faults in the plain and along it's bound aries, but also in huge amount of debris for feeding the depression because of strong uprising of the Longmenshan. The quaternary thrusting of Longmenshan nappe zone, obviously, is the general agency for the formation and developement of Chengdu plain. |
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| Keywords: | Chengdu plain quaternary fault depression Longmenshan nappe zone |
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