| 云南陆良盆地的形成与演化 |
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| 引用本文： | 刘树根,戴苏兰,赵永胜,赵泽江.云南陆良盆地的形成与演化[J].成都理工大学学报(自然科学版),1997(4). |
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| 作者姓名： | 刘树根 戴苏兰 赵永胜 赵泽江 |
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| 作者单位： | 成都理工学院石油系，西南石油地质局 |
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| 摘 要： | 陆良盆地是云南省第三系沉积盆地的典型代表。盆地中识别出四个不整合面，即Ｔｇ、Ｔ６、Ｔ３和Ｔ０。其拉张史可分为两大阶段：（１）Ｔｇ→Ｔ５，拉张强度渐增期；（２）Ｔ５→现今，拉张强度渐弱期。与拉张史相对应，陆良盆地的沉降史可分为两个阶段：（１）Ｎ２ｃ为快速沉降阶段；（２）Ｑ为沉降缓慢阶段。据此，陆良盆地的形成演化阶段为：（１）盆地初始形成期（Ｔｇ—Ｔ６）；（２）盆地扩张发育期（Ｔ６—Ｔ３）；（３）盆地发展稳定期（Ｔ３—Ｔ０）；（４）盆地萎缩充填期（Ｔ０—现今）。
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| 关 键 词： | 拉张史，沉降史，第三系，陆良盆地，盆地演化 |
THE FORMATION AND EVOLUTION OF LULIANG BASIN IN YUNNAN PROVINCE |
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| Liu Shugen,Dai Sulan,Zhao Yongsheng.THE FORMATION AND EVOLUTION OF LULIANG BASIN IN YUNNAN PROVINCE[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1997(4). |
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| Authors: | Liu Shugen Dai Sulan Zhao Yongsheng |
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| Abstract: | Luliang Basin is a typical one of the Tertiary sedimentary basins in Yunnan Province. Four unconformities have been idenyified in the basin, which are Tg, T 6, T 3, and T 0. The extensional history can be divided into two stages, which are the increasing extensional intensity from Tg to T 5 and the decreasing extensional intensity from T 5 to today. The subsidence story of the basin can be classified inyo two periods, that is the rapid subsidence period (N 2 c ) and the slow subsidence period (Quaternary). Based on the mentioned above, the process of formation and evolution of Luliang Basin is the primary formation stage (Tg T 6), the extensional development stage (T 6 T 3), the stable development stage (T 3 T 0), and the filling stage (T 0 today). |
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| Keywords: | extensional history subsidence history Tertiary Luliang Basin evolution of basin |
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