1.Biological marks of the crude oil contain long lateral chain of tricyclic terpane, and the content of gammacerane is low.
原油生物标志化合物分布,见长侧链三,但γ-蜡丰度较低。
2.Relative higher concentration of gammacerane in Songliao fresh-brackish lacustrine environment is connected with water column stratification caused by event of linking between lacustrine and sea.