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吐哈盆地中下侏罗统煤显微组分组成显示了“碎、小、薄”和过渡组分含量高的特点。结合显微和超微层次有机岩石学分析，在显微组分层次生烃组分主要为基质镜质体，碎屑类脂体、薄壁角质体、木栓质体和小孢子体在煤成烃中也有一定的贡献；超微层次生烃组分主要表现为分布于基质镜质体中的超微类脂体。煤中基质镜质体的高含量弥补了其单位生烃潜力低的不足，基质镜质体富氢成因在于生物化学阶段细菌等微生物对其强烈降解改造作用
The coal composition of the Middle-Jurassic coal in Turpan-Hami basin shows the characteristics of “broken, small and thin” and high content of transitional components. Combined with the micro-and ultra-micro-level organic petrology analysis, the hydrocarbon generation components in the microscopic layers are mainly composed of matrix vitrinite, detrital lipids, thin-wall keratoplasts, cork apices and microspores in the coal Hydrocarbon production also has a certain contribution; ultra-micro-level hydrocarbon generation components are mainly distributed in the matrix vitrinite in the micro-lipid body. The high content of matrix vitrinite in coal makes up for the low potential of hydrocarbon generation in its unit. The reason for hydrogen enrichment of matrix vitrinite is due to the strong degradation and remodeling effect of microorganisms such as bacteria in the biochemical stage