沥青组分试验表明，跟普通石油沥青相比，该种岩沥青的沥青质含量很高而胶质含量较低。
Group analysis of asphalt in BRA suggests that the content of the asphaltine is very high but the pectin content is lower compared with common oil asphalt.
由于成熟度、排烃条件等的影响，碳酸盐岩中各种有机质含量的相关关系不明显，仅沥青a和沥青c有比较差的正相关关系。
Because of different maturity and hydrocarbon expulsion, the correlation of every organic content in carbonate rock is not very clear, only bitumen "a" has a poor positive bearing on bitumen "c".
沥青反射率及储层的包裹体均一化温度显示：下奥陶统烃源岩有机质演化处于高成熟阶段。
According to the data on the bitumen reflectance and inclusion homogenization temperature, it is shown that the organic matters in Lower Ordovician source rocks are in the high maturity stage.
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