摘要
利用盆地钻孔及矿井资料,分析了铁法盆地含煤岩系层序地层。根据古构造运动面、大面积超覆界面、煤层和河床滞留沉积将含煤岩系划分为1个超层序和3个层序。将层序划分为低水位体系域、水进体系域、高水位体系域和水退体系域。总结了层序地层聚煤规律,指出了有利的找煤远景层位。
Sequence Stratigraphic Analysis of Coal Measures Strata in the Tiefa Basin, Liaoning is made on the basis of drill record and mining data. The Coal Measures Strata are divided into 1 super- sequence and 3 sequences on the basis of paleostructure surface, widespread overlap unconformability, coal seam, and channel lag deposit. The sequences may be divided into lowstand systems tract, transgressive systems tract, highstand systems tract and regressive systems tract. The coal - accumulating process of sequence stratigraphy is summarized and potential coal - bearing horizons are pointed out.
出处
《四川地质学报》
2007年第3期157-161,共5页
Acta Geologica Sichuan
基金
国家973计划项目(2005cb221501)
中国地质调查局地调项目(199910010311)
关键词
含煤岩系
层序地层
体系域
辽宁铁法盆地
coal measures
sequence stratigraphy
systems tract
Tiefa basin, Liaoning
