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本文对生油岩的特征和分布进行了研究，并论述了头沈地区的油气是以纵向运移和横向运移的方式通过多期次发育的断层由长滩洼陷运移而来。
In this paper, the characteristics and distribution of source rocks are studied, and the discussion shows that the hydrocarbons in the head-sink area are migrated from Longtan Sag through multiple stages of development in a longitudinal and lateral way.