摘要
在对百色内陆盆地早第三纪不同周期基准面旋回识别和分析的基础上 ,进行了高分辨率层序地层划分 ,建立了等时 -层序地层格架 ,论述了不同结构和叠加样式的短期基准面旋回在中长周期基准面旋回中的分布规律 .通过对基准面变化与聚煤作用分析 ,认为盆地的生成演化及其沉积作用与基准面变化密切相关 ,聚煤作用的发育也受到基准面变化的严格控制 .在适宜的气候条件下 ,层序的 3个体系域都具有成煤的条件 ,但主要煤层分布于超层序 2和超层序 3长周期基准面上升半旋回。
Based on the distinguishing and analysis on different period cycles of the basin base level in Paleogene period of Baise Basin, the high resolution sequence stratigraphic is divided and the isochroneity sequence stratigraphic framework is built. The distributive law of the short basin base level cycles which have the different structures and stacked styles are stated in the medium long period basin base level cycles. With the analysis of the basin base level change and coal accumulation, writer thinks the formation development of the basin and sedimentation relating with the basin base level change. The development of coal accumulation was strictly controlled by the basin base level change. Under the suitable climate, the factors of the coal formation could have been possessed in the three system domains of the sequences, but the main seams were distributed on the transgression system domains of the alluvial waning and the uplift half cycle of the long period basin base level on the super sequence 2 and super sequence.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2001年第5期463-467,共5页
Journal of China Coal Society
关键词
百色盆地
层序地层
基准面旋回
聚煤作用
第三纪
Baise Basin
high resolution sequence stratigraphic
basin base level cycle
coal accumulation
