等效镜质组反射率及芳烃成熟度参数显示济阳坳陷奥陶系烃源岩大多达到高成熟阶段，部分达到成熟、过成熟阶段。

The equivalent vitrinite reflectance and aromatic maturity parameters showed that most Ordovician source rocks were highly mature, and some of them were mature or over mature.

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寒武系烃源岩是塔里木盆地主要烃源岩之一，包括泥页岩和碳酸盐岩。

Cambrian source rocks, including mud shales and carbonates, are among the main source rocks in Tarim basin.

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由于当时没有高等植物出现，因此奥陶系烃源岩在油气生成上与我国东部中、新生界陆相烃源岩有着明显的不同。

The generation of hydrocarbons of the Ordovician source is different from that of Mesozoic nd Cenozoic sources since there were on high plants in the Ordovician Period.

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