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Study on volcanic facies of Tertiary Guantao Formation in Nanpu Sag
Author(s): 
Pages: 82-86
Year: Issue:  2
Journal: Lithologic Reservoirs

Keyword:  火山岩岩流期次岩相南堡凹陷;
Abstract: 南堡凹陷是在华北台地基底上,经中、新生代断块运动而发育起来的一个中新生界北断南超的箕状凹陷,其中火山岩岩性主要为玄武岩和凝灰岩.通过划分岩流单元和岩流组,并采用综合考虑爆发指数与厚度的方法进行岩相划分,确定研究区火山岩相以溢流相为主,爆发相主要集中于喷发中心附近,同时对研究区火山岩的平面、剖面分布作了研究.为下一步火山岩的储层研究提供了依据.
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