非海相沉积层序的成因和构型特征   总被引：4，自引：2，他引：4  

李继红  魏魁生  厉大亮  张守鹏  郝运轻  邱以刚 《沉积学报》2002,20(3):409-415

根据东部盆地的地质、地球物理特征,初步对非海相层序地层学应用研究进行了总结.非海相沉积层序的形成要素,既有外旋回、又有自旋回,构造和气候因素很重要,强调了环境因素.沉积基准面在海上为海平面,在陆上为潜水面、湖平面、河流平衡剖面.相对基准面的周期性变化引起了可容纳空间的周期性变化,并由之形成了一系列旋回式的层序.大多数情况下内陆基准面的变化不受海平面变化的控制,在全球最大海泛期有某种联系.湖盆小而沉积速率高,形成层序的频率高于海相.以沾化凹陷为依据,提出了5种层序构型特征:冲积-河湖型,(半)盐湖-淡水湖泊过渡型,海流-深湖型,半深湖-缓坡型,河流-冲积平原型.在盆地主要发育期,断阶式坡折对沉积体系有明显的控制作用.除低水位扇外,低水位楔是构成隐蔽圈闭或复合圈闭的有利场所。  相似文献   

Applied Sequence Stratigraphy in Nonmarine Basin of China     

Wei Kuisheng Li Daliang Zhang Shoupeng Hao Yunqing Department of Energy  Geology  China University of Geosciences  Beijing Du Zhenchuan Department of Energy Resomces  Geology  Hebei Technology University  Handan Zong Guoho 《中国地质大学学报(英文版)》2001,12(4)

INTRODUCTIONSequence stratigraphy, an efficient technique for both thebasin analysis and the prediction of hidden oil and gas reser-voir, was traced to seismic stratigraphy founded in l977, andnow has become a separate academic discipline after years ofamendments. In the 26th AAPG, the sedimentary se(1[I(>ncewas defined and the seismic stratigraphy technique was estaI)-lished to characterize and interpret seismic reflection scction.The sequence stratigraphy was emphasized to confirm and…  相似文献