| 鄂尔多斯盆地构造与多种矿产的耦合成矿特征 |
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| 引用本文： | 陈刚,李向平,周立发,李书恒,李向东,章辉若.鄂尔多斯盆地构造与多种矿产的耦合成矿特征[J].地学前缘,2005,12(4):535-541. |
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| 作者姓名： | 陈刚 李向平 周立发 李书恒 李向东 章辉若 |
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| 作者单位： | 西北大学地质学系大陆动力学教育部重点实验室 陕西西安710069
(陈刚，李向平，周立发，李书恒，李向东)，西北大学地质学系大陆动力学教育部重点实验室 陕西西安710069(章辉若) |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 多种能源矿产共存富集的盆地动力学问题正在成为地质学家期待解决的前缘科学问题。鄂尔多斯盆地是在古生代华北克拉通盆地基础上发育形成的中新生代多旋回沉积盆地,盆地构造与多种能源矿产时空配置关系的研究表明,油-气-煤-铀等多种沉积能源矿产虽然赋存于盆地的不同构造单元和古生界至中生界的不同地质层位,但它们在空间分布和成矿时间上却表现出相互关联,共存富集的统一性,促使它们统一成矿、共存定位的峰值时代主要发生在盆地重大变革的燕山中晚期(140~120Ma±)和后期改造过程的早喜山期(60Ma±),明显受控于盆地中新生代的构造演化关键时期的构造转换及其耦合成矿作用。因此,探索研究鄂尔多斯盆地不同演化阶段的古构造面貌、关键变革时期的构造应力场环境及其叠加转换关系,有助于客观认识多种能源矿产共存富集可能受控的统一构造动力学环境及其耦合成矿效应。
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| 关 键 词： | 鄂尔多斯盆地 构造演化 构造事件 多种能源矿产 耦合共存 |
| 文章编号： | 1005-2321（2005）04-0535-07 |
| 收稿时间： | 2005-06-10 |
| 修稿时间： | 2005-07-06 |
Ordos basin tectonics relative to the coupling coexistence of multiple energy resources |
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| Abstract: | The basin dynamic environment of multiple energy resources coexistence is a key frontier for sedimentary basin research and resources exploration. Ordos Basin is a Mesozoic to Cenozoic multi-cyclic sedimentary basin in North-China, which developed on the Paleozoic North-China craton basin. By analyzing the relationships between basin tectonics and multiple energy resources, we have studied the Ordos Basin tectonics relative to the coupling coexistence of multiple energy resources in time and space. The multiple energy resources of oil, gas, coal, and sandstone-type uranium deposit accumulate in different tectonic elements and in various sequences of Paleozoic to Mesozoic strata, but relate to or depend on one another for coupling coexistence in the basin. Especially, the first critical period of their coupling coexistence was about 140～120 Ma in agreement with the middle to late Yanshanian, corresponding to an intensive tectonic-thermal event and a tectonic transition of the basin. The second was mainly at about 60Ma±, corresponding to a tectonic uplifting process during the early Himalayan. The coupling coexistence of the multiple energy resources was obviously controlled by the basin tectonic evolution, tectonic transition of the critical period and later reformation during the Mesozoic to the Cenozoic. It is important to study the basin original tectonics, stress fields, and the composite characteristics in the critical periods, which can offer an integrated approach for recognizing the coupling effect of multi-resources coexistence and its controlled environment of the basin dynamics. |
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| Keywords: | Ordos Basin tectonic evolution tectonic event multiple energy resources coupling coexistence |
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