| 鄂尔多斯盆地早侏罗世富县期岩相古地理特征 |
| |
| 引用本文： | 时志强,韩永林,张锦泉.鄂尔多斯盆地早侏罗世富县期岩相古地理特征[J].矿物岩石,2001,21(3):124-127. |
| |
| 作者姓名： | 时志强 韩永林 张锦泉 |
| |
| 作者单位： | 1. 成都理工学院沉积地质研究所,四川,成都,610059
2. 长庆油田公司勘探开发研究院,陕西,西安,710021 |
| |
| 摘 要： | 在综合研究钻井剖面、野外露头基础上，结合室内编图、比层对比资料，指出早侏罗世富县期冲积扇－河流相沉积与古地貌密切相关，其古地理格局受印支运动后古构造面上的五条河谷控制；区内存在的冲积扇，分布于深沟河谷的陡壁一侧，为进积型冲积扇；富县期5条河流除晋陕河流为网状砂质河流外，其余均为低弯度砾砂质河流，边滩与洪泛平原微相沉积分布较广，并认为甘陕主河道流向为由西向东，“杂富县”为富县晚期洪泛平原微相产物。
|
| 关 键 词： | 鄂尔多斯盆地 岩相古地理 富县期 冲积扇 早侏罗世 印支运动 |
| 文章编号： | 1001-6872(2001)03-0124-04 |
LITHOFACIES PALEOGEOGRAPHY OF FUXIAN STAGE IN EARLY JURASSIC IN ORDOS BASIN |
| |
| SHI Zhi qiang,HAN Yong lin,ZHANG Jin quan.LITHOFACIES PALEOGEOGRAPHY OF FUXIAN STAGE IN EARLY JURASSIC IN ORDOS BASIN[J].Journal of Mineralogy and Petrology,2001,21(3):124-127. |
| |
| Authors: | SHI Zhi qiang HAN Yong lin ZHANG Jin quan |
| |
| Institution: | SHI Zhi qiang 1 HAN Yong lin 2 ZHANG Jin quan 1 |
| |
| Abstract: | Based on the synthetic study of outcrops and drilling section data, it is proposed that the fan fluvial sedimentation of Fuxian Stage was closely related to paleomorphology. Its paleogeography was controlled by five rivers occurred on the paleo structural plane after Indosinian movement.Fans existed in Ganshan and Qingxi river valleys and the fans showed progradating charecteristics. Among the five rivers, Jinshan river channel was braided arenaceous fluvial channel, and others were low curvature arenaceous fluvial channels. Point bar and flood plain sedimentation was widespread. It is showed that the flow direction of Ganshan fluvial was from west to east and the complex Fuxian mudstone was product of flood plain microfacies deposited at late period of fuxian Stage. |
| |
| Keywords: | Ordos lithofacies paleogeography Fuxian Formation fan |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
