湖相碳酸盐岩生油岩及其有机地球化学特征——以柴达木盆地第三系为例

LACUSTRINE CARBONATE SOURCE ROCKS AND THEIR ORGANIC GEOCHEMICAL CHARACTERISTICS --TAKING THE TERTIARY SYSTEM OF QAIDAM BASIN FOR EXAMPLE

湖相碳酸盐者型生油岩的特征是岩石中碳酸盐含量高,有机碳含量低,但其有机质向可溶烃的转化率却较高。其可溶抽提物中的生物标志化合物分布特征与碳酸盐岩和蒸发岩系很相似。

The characteristics of lacustrine carbonate type source rocks are thai in the rorks the content of carbonate is high ,the content of organic carbon is low .but the transformation ratio of their organic material to soluble hydrocarbons is higher. The distributive character istics of biomarkers in their soluble extracts are very similar to those in carbonate rocks and evaporite rocks series'.