摘要
研究了黄县含煤盆地沉积充填序列、沉积组合及其空间配置，识别出4种沉积体系类型；划分出2个Ⅲ级层序；分析了盆缘断裂的活动特点及煤的聚积规律.研究表明，盆缘断裂的活动控制了盆地的形成、发展和演化.盆地充填沉积序列可划分出2个构造沉积旋回.其沉积体系构成主要有冲积扇扇三角洲沉积体系、辫状河三角洲沉积体系、滨浅湖湖沼泽沉积体系和深湖浊积沉积体系.其中以低水位水进体系域中的扇三角洲、辫状河、滨浅湖湖沼沉积体系与聚煤作用具有密切关系.主要煤层形成于低水位水进体系域，聚煤作用中心随盆地水域体制的变化而发生迁移.
?The basin filling succession, depositional association and thei r spatia l distribution in Huangxian coalbearing basin were investigated. The result sh ows th at the formation and evolution of the basin were mainly controlled by the south boundary fault and the HuangxianDaxindian fault. The basin filling succession can be divided into two tectonicstratigraphic cycles, thus two thirdorder sequen ce s are distinguished. There are four kinds of depositional systems in the coal me asures: alluvial fanfan delta, braided river delta, near shorelacustrine mar sh and lacustrineturbidite depositional systems. Coal accumulation is mainly rela t ed to the fandelta and near shore lacustrine marsh depositional systems in t he lowstandtransgressive system tracts. The coalaccumulating center migrates w ith the evolution of the basin filling and the variation of basin water mechanis m.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2000年第3期300-305,共6页
Journal of China University of Mining & Technology
基金
山东省自然科学基金!(Q94E0432)
煤炭科学基金!(95地10509)
关键词
断陷盆地
充填演化
煤聚积规律
黄县
basin filling
tectonic stratigraphic cycle
depositional sy stem
sequence
system tract
coal accumulation
Huangxian faulted basin
