摘要
沉积盆地波动分析是定量研究不整合剥蚀量的有效方法之一.该方法从地层资料入手,通过沉降史研究,恢复地层原始厚度,建立反映盆地沉积—剥蚀过程的波动方程,实现对沉积—剥蚀过程的定量预测.对新疆塔里木盆地的沉积波动分析表明,海西早期构造事件、海西末期构造事件和印支期构造事件引起的隆升剥蚀最为强烈,并以塔中隆起、塔东地区和塔北隆起造成的剥蚀量最大.
Wave process analysis of sedimentary basin is an available method for study of erosion quantity of unconformities. Study processes of the method are as following:(1)the statistics of raw data for every area, (2)the transformation from lithology_time section, (3)restoring the primary thickness and calculating the depositional rate, (4)establishing the wave equation, (5)calculating the erosion quantity of unconformities. Application of the method to Tarim basin indicates that intensely erosion is occurred in central Tarim Uplift, eastern Orogenic stage and Indo_Chinese orogenic stage.
出处
《焦作工学院学报》
1999年第3期161-165,共5页
Journal of Jiaozuo Institute of Technology(Natural Science)
基金
国家"九五"重点科技攻关项目
关键词
不整合剥蚀量
波动分析
塔里木盆地
沉积盆地
erosion quantity of unconformities
wave process analysis
depositional and erosional processes
Tarim basin