典型的标志如卟啉、姥鲛烷、植烷、留烷、胡萝卜烷、以及五环三萜烷。

Typical markers are the porphyrins, pristine, phytane, steranes, carotenes and pentacyclic triterpanes.

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型则以C30-未知三萜烷UCT2和相对较高含量的C35藿烷为特征。

There are C30-unconfirmed triterpane (UCT2) and relatively high content of C35 hopane in type D.

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具有高含量的C27甾烷、规则甾烷、4-甲基甾烷、长链三环萜烷，说明它们母质主要为菌藻类；

High amounts of C27 steranes, regular steranes, 4-methyl steranes, long chain tricyclic terpanes for the western Qaidam oils indicate that the dominant organic matter source is algal material.

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