白晓亮;郗诚;和源;王晶;明盈;

• 1:中国石油西南油气田分公司勘探开发研究院

摘要(Abstract)：

以层序地层学理论为指导,综合运用钻井、测井和地震资料,研究四川盆地中二叠统栖霞组层序地层特征及沉积演化模式,确定层序地层格架展布,建立沉积演化模式。结果表明:栖霞组可以划分为Sq1和Sq2两个三级层序旋回,Sq1海侵体系域迅速海侵,造成可容纳空间的增加速率大于碳酸盐岩的生长速率,局部层段可见颗石藻及钙球粒等水体较深的生物组合,反映迅速海侵造成水体突然加深的过程;Sq1高位体系域广泛发育厚层台地边缘颗粒滩相,随海平面的上升,高部位碳酸盐岩的生长速率可以弥补海平面上升(可容纳空间增加)的速率,碳酸盐岩生长以加积为主,发育一套厚层稳定分布的台缘颗粒滩相沉积。二叠系沉积前,古地貌控制栖霞组沉积格局,栖霞组早期沉积是逐渐向古隆起的超覆过程,栖霞组中晚期发育海侵背景条件的碳酸盐岩台地—斜坡—盆地沉积模式,加里东古隆起高部位及岩溶古地貌高部位控制滩相展布。

关键词(KeyWords)： 四川盆地;中二叠统;栖霞组;层序地层;台地边缘;沉积演化模式

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项(2016ZX05007-004)

作者(Author): 白晓亮;郗诚;和源;王晶;明盈;

Email:

DOI:

参考文献(References)：

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