沉积盆地分类和构造样式分析应从(1)几何学,(2)运动学,(3)动力学和(4)时间等方面来进行研究,从动力学系统可以将盆地分为;(1)裂陷盆地,(2)压陷盆地和(3)走滑盆地3大类;随着时间进展从板块运动学系统可以划分出盆地的演化序列;在一定构造阶段可以形成一定的盆地几何特征,各类盆地相应地产生伸展构造体系、压缩构造体系和走滑构造体系等各种构造样式,盆地构造分析为油气勘探提供理论和技术路线,全球动力学系统和板块构造理论为盆地分类提供理论基础,构造样式对比为预测和外推盆地的构造圈闭类型及反射地震剖面解释提供各种地质模型。
【作者单位】:中国地质大学(北京)能源地质系
【关键词】:裂陷盆地;压陷盆地;走滑盆地;构造样式;地球动力学
【基金】:国家自然科学基金与地质行业科学技术发展基金联合资助
【DOI】:cnki:ISSN:1000-2383.0.1993-06-006
【正文快照】:
l’盆地的地球动力学分类 盆地形成机制和类型是一个争议较多的主题,可以从系统论角度进行定性、定时和定量3方面来分析:定性就是从全球动力学角度和活动论观点来确定盆地形成机制和性质;定时就是从板块构造运动学角度和阶段论观点来研究盆地演化序列和构造转化或构造反转特征
DYNAMIC CLASSIFICATION OF SEDIMENTARY BASINS AND THEIR STRUCTURAL STYLES
Liu Hefu (China University of Geosciences;Beijing 100083)
Sedimentary basins can be classified in terms of (1) geometry, (2) kinematics, (3) dynamics, and (4) chronology. In dynamic terms, the basins fall into three main categories: (1) extensional basins, (2) compressional basins and (3) strike-slip basins. Special geometric features of these basins can be identified in different evolution stages in terms of plate movement. Their relevant structural styles are extensional, compressional and strike-slip. Structural analyses provide both theoretical and technical means for oil and gas exploration. Classification of basins can be made on the basis of the theories of global dynamic system and plate tectonics. Structural styles comparison can provide various geological models for the prediction of trap types and for the interpretation of seismic reflection profiles.
【Keyword】:extensional basin, compressional basin, strike-slip basin, structural styles, geodynamics.