徐家围子断陷火山岩充填的层序地层

被引:23
作者
程日辉
王璞珺
刘万洙
单玄龙
陈树民
曲永保
机构
[1] 吉林大学地球科学学院
[2] 大庆油田股份有限公司
基金
高等学校博士学科点专项科研基金;
关键词
火山岩; 充填样式; 构造断阶; 层序地层模式;
D O I
10.13278/j.cnki.jjuese.2005.04.011
中图分类号
P539.2 [层序地层学];
学科分类号
摘要
松辽盆地徐家围子断陷晚侏罗世-早白垩世期间火山岩十分发育,火山喷发岩的盆地充填样式与其在盆地中喷发的构造位置和构造断阶样式有关。根据火山岩的喷发构造位置和赋存情况,徐家围子断陷火山岩的盆地充填样式可以分为三种类型:沿断裂喷发赋存样式、在上升盘喷发赋存样式和在下降盘喷发赋存样式。这些火山岩的充填样式具有不同的几何学特征。在层序发育过程中火山的喷发与火山岩的充填分别出现在低水位早期、低水位晚期和水进期。在层序地层格架中不同火山岩的充填样式影响或控制了盆地的地形、沉积作用类型、沉积体几何学和层序结构。这种构造火山活动背景下的层序地层模式可以作为油气勘探的地质模型,进行储集层预测。
引用
收藏
页码:469 / 474
页数:6
相关论文
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