| 缅甸含油气盆地群形成演化及其地球动力学背景 |
| |
| 引用本文： | 王营,辛仁臣.缅甸含油气盆地群形成演化及其地球动力学背景[J].地质科技通报,2021,40(1):27. |
| |
| 作者姓名： | 王营 辛仁臣 |
| |
| 作者单位： | 中国地质大学（北京）海洋学院 |
| |
| 基金项目： | 国家科技重大专项"全球重点领域油气地质与富集规律研究"2016ZX05029-001-002 |
| |
| 摘 要： | 基于不同构造单元地质记录的分析,结合板块重建及地球动力学背景,对缅甸含油气盆地群的形成演化及其地球动力学背景进行了探讨。研究表明:缅甸含油气盆地群的基底是晚基梅里期变质杂岩;晚白垩世至始新世,新特提斯洋壳向西缅地块之下NNE向斜向俯冲,在西缅地块西缘发育增生楔,而在西缅地块内形成了火山弧、弧前裂陷盆地和弧后裂陷盆地;渐新世以来,新特提斯关闭,随后印度地块与西缅地块北段陆陆碰撞,西缅地块北部的盆地演化为弧后前陆盆地;印度洋壳向西缅地块中段和南段之下NEE向俯冲,西缅地块西缘先期增生楔逐步隆升为印缅山脉,印缅山脉东侧的西缅地块中南部盆地均演化为弧后挤压盆地,印缅山脉西侧的若开盆地成为弧前盆地。
|
| 关 键 词： | 缅甸盆地群 弧前盆地 弧后盆地 盆地演化 新特提斯 |
| 收稿时间： | 2020-01-08 |
Evolution and geodynamic background of Myanmar petroliferous basin group |
| |
| Wang Ying,Xin Renchen.Evolution and geodynamic background of Myanmar petroliferous basin group[J].Bulletin of Geological Science and Technology,2021,40(1):27. |
| |
| Authors: | Wang Ying Xin Renchen |
| |
| Affiliation: | (School of Ocean Sciences,China University of Geosciences(Beijing),Beijing 100083,China) |
| |
| Abstract: | Based on the analysis of the geological records of different tectonic units, and combined with plate reconstruction and geodynamic background, the evolution and their geodynamic background of Myanmar petroliferous basin group are discussed in this paper.The study shows that the basement of Myanmar petroliferous basin group is a metamorphic complex developed in the Late Cimmerian period.From Late Cretaceous to Eocene, the Neo-Tethys oceanic crust subducted towards the NNE under the West Burma block.Accretionary wedge developed on the western edge of the West Burma block, and volcanic arcs, fore-arc rift basins, and back-arc rift basins formed in the West Burma block.Since Oligocene, the Neo-Tethys closed down, and then the Indian block and the northern part of the West Burma block collided, and the basins in the northern part of the West Burma block evolved into back-arc foreland basins.The Indian Ocean crust subducted towards the NEE under the central and southern parts of West Burma block, and the accretionary wedge developed on the western edge of the West Burma block gradually uplifted to the Indo-Burma range.The central and southern basins of the West Burma block on the east side of the Indo-Burma range all evolved into back-arc compressional basins, while the Rakhine basin on the west side of the Indo-Burma range evolved into fore-arc basin.The results of this study have certain indicative significance for the prediction and exploration of oil-gas and mineral resources in the Myanmar basin group. |
| |
| Keywords: | Myanmar basin group fore-arc basin back-arc basin basin evolution Neo-Tethys |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《地质科技通报》浏览原始摘要信息 |
|
点击此处可从《地质科技通报》下载全文 |
|
