黄县盆地盆缘断裂活动的阶段性与沉积充填样式

THE ACTIVE STAGES OF THE BOUNDARY FAULTING AND THE DEPOSITION FILLING PATTERN IN HUANGXIAN FAULTED BASIN

进行了黄县盆地充填沉积的层序地层划分，并与盆地构造演化阶段分析有机的结合起来。研究表明：早第三纪黄县断陷盆地的构造演化总体上经历了两次裂陷期，第一裂陷期以盆地间歇性快速沉降为特点，第二裂陷期以盆地持续缓慢沉降为特点；盆缘同沉积活动对盆地充填起控制作用，不同阶段发育的层序具有不同的沉积序列特征，层序内部单元和沉积体系、相的配置显示出有序性，从而提出了黄县断陷盆地充填样式，指出聚煤作用以低水位和水进期较强。

The sequence stratigraphic division of basin filling succession in Huangxian faulted basin is conducted,and combined with the analysis of tectonic evolution stages of basin.It is indicated that the tectonic evolution in Huangxian faulted basin was generally gone through two rifting stages in Paleogene.The first stage is characterized by the intermittent rapid subsidence and the second one is dominated by the comtinuously slow subsidence.Due to the control of synsedimentary activity of the boundary faults on the basin filling,The sequences development in different stage have different depositional features,but the internal units of sequences,the depositional systems and the package patterns of the facies show the ordered property.The filling pattern in Huangxian faulted basin is presented,and it is indicated that the coal accumulation is stronger in both low stand period and water progression period.