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烃源岩类型的划分是油源对比的基础,也是油气成藏研究的基础。本文就是在研究霸县凹陷古近系烃源岩地球化学特征的基础上,将其划分为三种类型:沙一型、沙三上型、沙三中下-沙四型。
The classification of source rock types is the basis of oil source contrast and also the basis of hydrocarbon accumulation research. Based on the study of the geochemical characteristics of Paleogene source rocks in Baxian Sag, this paper divides them into three types: Sha1, Sha3 and Sha3.