| 摘要: |
| 兰州-民和盆地早白垩世充填了巨厚的陆源碎屑物。笔者通过对碎屑物组合方式的研究,陆盆内为冲积扇相※湖泊相※湖控三角洲相的充填序列;通过对陆盆的基底特征、古流向、物源区和陆盆演化的分析,揭示了盆地的沉积特征。 |
| 关键词: 沉积相 沉积特征 兰州-民和盆地 |
| DOI： |
| 附件 |
| 投稿时间：1999-11-22 |
| 基金项目: |
|
| Sedimentary environments of the Lanzhou-Minhe Basin during the Early Cretaceous |
| LI Qi-lin |
| (Research Institute of Geology and Mineral Resource Exploration, Lanzhou 730050, Gansu, China) |
| Abstract: |
| The tremendous terrigenous sediments laid down in the Lanzhou-Minhe Basin during the Early Cretaceous. These Creatceous sediments mainly consist of a succession of lacustrine-dominated red clastic rocks and mudstones, and display a depositional sequence of alluvial fan facies, lacustrine facies and lacustrine-dominated delta facies. The deposition and evolution of the basin are discussed in detail on the basis of basin basement, palaeocurrent and provenance analysis. |
| Key words: sedimentary facies deposition Lanzhou-Minhe Basin |
