| 准噶尔东北缘前陆盆地构造演化与油气关系 |
| |
| 引用本文： | 吴晓智,赵永德,李策.准噶尔东北缘前陆盆地构造演化与油气关系[J].新疆地质,1996(4). |
| |
| 作者姓名： | 吴晓智 赵永德 李策 |
| |
| 作者单位： | 新疆石油管理局勘探开发研究院 |
| |
| 摘 要： | 在挤压构造环境下，造山带与相邻的克拉通之间形成前陆盆地，其演化是由早期不稳定阶段向晚期稳定阶段不断发展。准噶尔盆地东北缘于克拉麦里山前形成典型的前陆盆地。前陆盆地及前缘陆隆的演化、迁移与克拉麦里深大断裂的走滑发展休戚相关。早石炭世前陆盆地位于陆南－滴西地区，晚石炭世迁至东部大井－石钱滩北部，二叠纪，受克拉麦里大断裂影响，开始向西迁移至五彩湾一带；晚二叠世晚期前陆盆地消失，进入统一拗陷时期。前陆盆地的发展演化过程中，早期与晚期的构造应力作用松弛期，为前陆盆地发育期，分别形成该地区滴水泉组与平地泉组两套烃源岩。其中滴水泉组形成的石炭纪原生油气藏，在后期的构造变动中，遭受了破坏，油气发生散失，而平地泉组最具现实意义。前缘陆隆的变迁，控制着油气的运移方向；前缘陆隆于演化过程中逐步被ＮＥ向构造改造，后期得到不断加强的古隆起之上的ＮＥ向构造是油气有利聚集带。
|
| 关 键 词： | 准噶尔盆地，前陆盆地，构造演化，陆隆迁移 |
TECTONIC EVOLUTION OF FORELAND BASIN AT NORTHEASTERN MARGIN OF JUNGGAR AND ITS RELATION WITH OIL-GAS |
| |
| Wu Xiaozhi, Zhao Yongde, Li Ce.TECTONIC EVOLUTION OF FORELAND BASIN AT NORTHEASTERN MARGIN OF JUNGGAR AND ITS RELATION WITH OIL-GAS[J].Xinjiang Geology,1996(4). |
| |
| Authors: | Wu Xiaozhi Zhao Yongde Li Ce |
| |
| Abstract: | Foreland basin is formed by compression between orogeny and its neighboring craton, with evolution from early unstable stage to late stable stage. A typical foreland basin was formed at the front of Kalatnayli mountain, northeastern margin of Junggar basin. The evolution, migration of foreland basin and foreland uplift are closely related with the development of Kalamayli deep faults. At early Carboniferous the foreland basin was located at Luna-Dixi area; and ingrated eastward to the north of Dajin-Shiqiantan at late Carboniferous. Up to Permian it migrated westward to Weicaiwan, and disappeared at late stage of late Permian.The underdevelopment stage of structural stress at early and late stage is the most developed stage of foreland basin. ixshuiquan Formation and Pindiquan Formation of carbonate source rocks formed at this time. The Carboniferous primary oil-gas pool of Deshuiquan Formation were destroyed by later structural movement and so disappeared. While Pindiquan Formation is of most practical significance. The foreland uplift controlled the migration of Oil-gas, and was reformed by later northeast--trending structures. So the northeast-trending structures over the paleo-uplift is a preferential zone for oil-gas concentration. |
| |
| Keywords: | Junggar basin foreland basin tectonic evolution continental uplift migration |
| 本文献已被 CNKI 等数据库收录！ |
