摘要
本文用比较沉积学的方法对淮南煤田二叠系三、四含煤段沉积物进行详细研究，初步建立了由多条陆源河流形成的复合型三角洲沉积模式。根据水文（古水文）特征将复合型三角洲划分为三大部分：水下三角洲平原、水上三角洲平原的树枝状河道体系和网状河道体系，并讨论了每个组成部分内的沉积作用特征。通过对比，指出该三角洲体系与单一陆源河流三角洲在成因、展布格局和组合特征等方面存在的差异。
A comparative sedimentological study of the permian Coal-bearingMembers C and D, Huainan Coalfield was made. And a depositional model of complex delta which was formed by several continental streams is established.According to the characteristics of paleohydrology, the complex delta can be divided into three parts: the subaqueous delta plain, the branched channel system and the anastomosed channel system on the delta plain. The depositional characters of each components are discussed. It was pointed out that this delta system is different from a single continental stream in terms of origin, distribution and combined characteristics.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1994年第1期89-98,共10页
Journal of China Coal Society
基金
国家自然科学基金
关键词
复合型三角洲
沉积学
河道演变
complex delta, subaqueous delta plain, branched channel system,anastomosed channel system
