摘要
采用有机岩石学分析方法，研究了西湖凹陷下第三系煤系源岩（煤和泥岩）的有机质热演化特征与阶段。研究表明：（１）镜质组反射率Ｒ°是西湖凹陷可靠的热演化标志；（２）孢子体的荧光变化特征具有特殊重要的热演化指示意义；（３）西湖凹陷煤系源岩有机质热演化具有明显的阶段性，可划分为五个热演化阶段。
The Characte ristics and stages of thermal evolution of organic matter in coal-bearing source rocks of XiHu Sag were studied in this paper by using the analystical method of organic petrology.The following conclusions could be made from the studies:(1)the vitrinite reflectance(R°)is the reliable scale for thermal evolution,(2)the fluorescence alternation of sporinite is special importance in thermal evolution,(3)the thermal evolution of organic matter in coal-bearing source rocks of XiHu sag had the obvious stage properties and could be divided into five stages.
出处
《中国煤田地质》
1997年第1期33-36,共4页
Coal Geology of China
基金
国家八.五重点科技攻关项目
关键词
煤系
煤矿床
源岩
有机质
热演化
Thermal Evolution
Vitrinite Reflectance
Fluorescence Alternation
Thermal Evolution stage
XiHu sag.
