克拉通盆地层序样式分布模式研究——以中扬子区为例

以中扬子区为对象 ,研究了克拉通盆地层序样式基本类型 ,讨论了层序样式发育的主要控制因素 ,提出了层序样式空间分布的F、S、R和P模式 ;认为克拉通盆地具有T型、H型和TH型 3种层序样式 ,通常以H型层序样式为主 ;相对海平面升降是控制中扬子区三级层序的主要因素 ,三级层序样式主要具有FSR分布模式。与世界上其他克拉通盆地的对比表明 ,同类地区具有类似的层序样式及分布模式 ,中扬子区的研究成果具有一定的代表性

A STUDY ON THE DISTRIBUTION MODEL OF THE SEQUENCE STYLE ON CRATON BASIN IN THE MID-YANGTZE AREA

As an example in the Mid-Yangtze area, the basic catalogues and characteristics of sequence style in craton basin have been studied, the mainly key factors for sequence style forming have been discussed, and the sequence style distribution model called as F,S,R and P has been improved. As a result, there are three styles in craton basin mainly which are called as T, H, and TH styles, in which the H styles is the most one. Relative sea-level change is the most key factor controlling tertiary sequence style forming and distribution, and FSR model is chief one for tertiary sequence style in the Mid-Yangtze area. The sequence style character in the Mid-Yangtze area is similar to the other craton basins in the world, the result in the Mid-Yangtze area may be regarded as a representation conclusion.