Objective The distribution characteristics and formation mechanism of rearranged hopanes in hydrocarbon source rocks are affected by various geological conditions.Among these geological conditions,thermal action has an important influence on the formation of rearranged hopanes,which has been however little documented previously.Taken the lacustrine source rocks in the Objective The distribution characteristics and formation mechanism of rearranged hopanes in hydrocarbon source rocks are affected by various geological conditions. Among these geological conditions, Amway this has an important influence on the formation of rearranged hopanes, which has been However little information previously.Taken the lacustrine source rocks in the