| 北山—阿拉善地区白垩纪、侏罗纪盆地叠合特征 |
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| 引用本文： | 郑孟林,李明杰,曹春潮,张军勇.北山—阿拉善地区白垩纪、侏罗纪盆地叠合特征[J].大地构造与成矿学,2003,27(4):384-389. |
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| 作者姓名： | 郑孟林 李明杰 曹春潮 张军勇 |
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| 作者单位： | 1. 石油大学盆地与油藏研究中心,北京,102249;石油大学石油天然气成藏机理教育部重点实验室,北京,102249
2. 石油物探局研究院地质研究中心,河北,涿州,072751 |
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| 摘 要： | 研究区发育侏罗纪盆地和白垩纪盆地,侏罗纪盆地受近东西向断裂的控制,为东西向展布的断陷湖盆。白垩纪盆地受北东向断裂的控制,为北东向展布的断陷湖盆,经历早白垩世的伸展断陷及其以后的后期改造阶段。两大世代的盆地在空间上存在翘倾叠合、叠合保存、部分叠合改造等三种方式。盆地的叠合保存对侏罗系烃源岩的油气形成最为有利。
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| 关 键 词： | 侏罗纪盆地 白垩纪盆地 构造特征 盆地叠合 北山-阿拉善地区 |
| 文章编号： | 1001-1552(2003)04-0384-06 |
| 修稿时间： | 2003年3月27日 |
SUPERPOSED CHARACTERISTICS OF CRETACEOUS AND JURASSIC BASINS IN BEISHAN-ALAXA AREA |
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| ZHENG Meng lin,CAO Chun chao,LI Ming jie and ZHANG Jun yong.SUPERPOSED CHARACTERISTICS OF CRETACEOUS AND JURASSIC BASINS IN BEISHAN-ALAXA AREA[J].Geotectonica et Metallogenia,2003,27(4):384-389. |
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| Authors: | ZHENG Meng lin CAO Chun chao LI Ming jie and ZHANG Jun yong |
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| Affiliation: | ZHENG Meng lin1,3,CAO Chun chao2,LI Ming jie2 and ZHANG Jun yong2 |
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| Abstract: | There exist Jurassic and Cretaceous basins in the Beishan Alaxa area. The Jurassic basins are controlled by near EW trending faults, and the faulted basins extend in EW direction. The Cretaceous basins controlled by NE trending faults extend in NE direction. The Cretaceous basins experience two stages of extensional faulted depression and late deformation. There exist three superposed manners of Jurassic and Cretaceous basins in space. They are titling superposition, superposed preservation and part superposition. The superposed preservation area of Jurassic basins are the most favorable for oil and gas formation. |
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| Keywords: | Jurassic basin Cretaceous basin Structural characteristics Basin superposition Beishan-Alaxa area |
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