酒泉盆地青西凹陷下沟组高分辨率层序分析  

High-resolution Sequence Stratigraphy Analysis of Xiagou Formation,Lower Cretaceous in Qingxi Sag,Jiuquan Basin

作　　者：汪满福 王俊涛 唐飞 郑爱萍 程晓珍 文华国[2] 

机构地区：[1]中国石油玉门油田分公司,甘肃酒泉735019 [2]成都理工大学'油气藏地质及开发工程'国家重点实验室,成都610059

出　　处：《沉积学报》2008年第4期624-631,共8页Acta Sedimentologica Sinica

基　　金：国家自然科学基金(批准号:40672073);高等学校博士学科点专项科研基金(编号:20060616014)资助

摘　　要：主要应用Cross的高分辨率层序地层学理论及其技术方法,对酒西坳陷青西凹陷下沟组进行了层序地层划分,从中划分为2个长期和5个中期数十个短期基准面旋回层序,分析了不同级次的基准面旋回结构、叠加样式、分布模式,及其与储集砂体的发育关系,探讨了地层格架中生、储、盖组合和有利储集相带和铁白云石—钠长石质喷流岩的平面分布规律。Based on the theory and technology of Cross＇s high-resolution sequence stratigraphy, and two long-term, five middle-term and above ten short-term cyclic sequences from Xiagou Formation of Lower Cretaceous in Qingxi Sag, Jiuquan Basin were classified. The structure types, stacking patterns, distributing mode and development relation to reservoir sand body of short-term, middle-term, long-term cyclic sequences are analyzed. The source-reservoir-seal associations and the plane distribution rule of ferrodolomite-albite exhalative rock in the chrono-stratigraghic framework are discussed in detail.

关 键 词：青西凹陷 高分辨率层序地层 扇三角洲 湖底扇 等时地层格架 喷流岩 

分 类 号：P539.2[天文地球—古生物学与地层学]