The research presents that the melanic mudstones are not very thick and organic carbon index is low in this member, but the type of organic matter is good with the features of high hydrocarbon generation potential and early hydrocarbon generation time.

• 研究表明 ,该段暗色泥岩虽然厚度不大 ,有机碳指标较低 ,但有机质类型较好 ,具有生烃潜力高、生烃时间早的特征。