摘要
详细研究了济阳坳陷石炭—二叠系沉积特征、沉积相、沉积体系 ,进行了层序地层划分。研究表明 ,济阳坳陷上石炭统主要发育障壁—泻湖沉积体系 ,这与鲁西地区有较大的差异。陆表海充填沉积的三级层序为二元结构 ,即下部为海侵体系域 ,上部为高水位体系域 ,缺少低水位体系域。体系域的分界面为最大海泛面。这一特征与鲁西地区乃至整个华北陆表海盆地含煤地层的三级层序的结构特征相一致。二叠系的三级层序为三元结构 ,即下部为低水位体系域、中部为水进体系域。
Sedimentary characteristics,facies and system of Permo-carboniferous System in Jiyang Depression has been studied in detail and the division of stratigraphical sequences has been set out.The results show that barrier-lagoon sedimentary system is dominant in the Upper Carboniferous System in the studied area,which is of great difference from that of west Shandong.The third-order sequence of sediment filling in epicontinental sea is of dualistic structure,that is,the lower part is transgressive system tract and the upper high stand tract,lacking low stand tract.The division surface is MFS.These characteristics are in accordance with that of the structure of the third-order sequence in west Shandong,even in the whole north China epicontinental sea coal-bearing basin.The third-order sequence of Permian System is of ternary structure,that is,the low trait in the lower part,the water transgression system tract in the middle and the high stand trait in the upper.
出处
《山东科技大学学报（自然科学版）》
CAS
2002年第2期68-71,78,共5页
Journal of Shandong University of Science and Technology(Natural Science)
