permain 二叠系
- The important evolution information in post—orogenic stage of Tarim Plate is recorded by Longdon granitoid rock during early Permain period.
该岩体记录了早二叠世早期塔里木板块北缘仍处于后造山阶段重要演化信息。 - The hydrocarbon mother rock of the Permain began to produce hydrocarbon in late Indo Chinese epoch and bleeded off hydrocarbon in big mass in Yanshan-xishan epoch.
二叠系烃源岩自印支期末开始生烃,燕山期至喜山期大量生烃排烃。
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