This paper correlates the source rocks with biology marks in natural gas formation asphalt by adopting indirect correlation method, recognizing that deep natural gas mainly comes from Jurassic and Denglouku Formations.

• 本文采用间接对比法，将源岩与天然气储层沥青中的生物标记物进行对比，认为深层天然气主要来自侏罗系和登娄库组地层。