| 前陆盆地陆源沉积序列的特征与成因机制 |
| |
| 引用本文： | 吕红华,周祖翼.前陆盆地陆源沉积序列的特征与成因机制[J].地球科学进展,2010,25(7):706-714. |
| |
| 作者姓名： | 吕红华 周祖翼 |
| |
| 作者单位： | 同济大学海洋地质国家重点实验室,上海,200092 |
| |
| 基金项目： | 中国博士后科学基金，国家自然科学基金 |
| |
| 摘 要： | 前陆盆地接受的来自毗邻造山带的陆源碎屑沉积是盆山耦合关系研究的主要对象之一.这套沉积通常具有以下3个方面的特征:①在地层剖面中,前陆盆地陆源沉积序列呈向上变粗的趋势,其成因有多种可能,包括源区构造隆升、侵蚀卸栽导致的盆地基底均衡回弹、气候变化、岩性变化等;②构造抬升导致的粗粒相沉积事件与构造事件之间存在时滞,其大小取决于源区基岩剥露速率、侵蚀与搬运条件、沉积区距造山带构造变形前缘之间的距离等因素;③粗粒相沉积在前陆盆地内的分布具有穿时性.重视这些方面的研究,有助于得出有关前陆盆地及毗邻造山带演化的合理结论.
|
| 关 键 词： | 前陆盆地 构造活动 气候变化 时滞 穿时性 |
Characteristics and Genesis of Terrigenous Depositional Sequences in Foreland Basins |
| |
| LV Honghua,ZHOU Zuyi.Characteristics and Genesis of Terrigenous Depositional Sequences in Foreland Basins[J].Advance in Earth Sciences,2010,25(7):706-714. |
| |
| Authors: | LV Honghua ZHOU Zuyi |
| |
| Institution: | State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China |
| |
| Abstract: | Foreland basins,commonly defined as sedimentary basins lying between the front of the mountain chain and the adjacent craton,represent a well-established model related to tectonics and sedimentation. Many foreland basins are characterized by coarsening-upward terrigenous depositional sequences,within which the occurrence of conglomeratic deposits are commonly considered as indicating tectonic uplift of the source area. The conglomeratic deposition,however,could derive from several totally different scenario... |
| |
| Keywords: | Foreland basin Tectonic events Climatic change Time lag Time-transgressive |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地球科学进展》浏览原始摘要信息 |
| 点击此处可从《地球科学进展》下载免费的PDF全文 |
|
