陆表海盆地含煤地层的高分辨率层序地层研究  

CHARACTERISTICS OF HIGH-RESOLUTION SEQUENCES OF COAL-BEARING STRATA IN EPICONTINENTAL BASIN

作　　者：李增学[1] 单松炜 

机构地区：[1]山东科技大学油气盆地研究中心,泰安271019 [2]山东煤田地质局,泰安271019

出　　处：《煤田地质与勘探》2000年第4期13-16,共4页Coal Geology & Exploration

基　　金：国家自然科学基金!资助项目 ( No.4 9872 0 57)

摘　　要：分析了鲁西南煤田陆表海盆地沉积充填序列中的 T-R旋回特征 ;划分出陆表海盆地高分辨层序 ,依次为构造层序、超层序、层序、小层序组、小层序及更小级别的层序单元。在研究了陆表海盆地海平面变化特点及其对煤聚积控制作用的基础上 ,提出了“海侵事件成煤”观点 ,认为海侵事件是控制陆表海盆地煤聚积的重要事件 ,突发性海侵事件界面、暴露土壤化事件界面和海侵事件成因的煤层均具有等时性对比意义。The features of T R cycles in coal measures of epicontinental basin,southwestern shandong coal field is analyzed and the division of high solution sequences is presented.They are,in descending order,tectonic sequence,supersequence,sequence,parasequence sets,parasequence and lower order sequence unit.Based on sea level changes in epicontinental basin and their control on coal formation,the view of coal formation caused by transgressive events is also presented.The study indicated that the transgressive events are important factors which control the coal formation.The episodic transgressive event surfaces,exposure pedogenese surfaces and the coal seams caused by transgressive events are of isochronic significance in the strata correlation.

关 键 词：成煤作用 层序地层学 陆表海盆地 含煤地层 

分 类 号：P536[天文地球—古生物学与地层学] P618.110.2[天文地球—地质学]