The main hydrocarbon-generating macerals in the source rocks of the coal measures are exinite, alginite and desmocollinite.Organic matter is dominantly of type III kerogen.
煤系烃源岩中主要的成烃显微组分是壳
、
、基镜等,有机型以Ⅲ型为主;
；煤素The main hydrocarbon-generating macerals in the source rocks of the coal measures are exinite, alginite and desmocollinite.Organic matter is dominantly of type III kerogen.
煤系烃源岩中主要的成烃显微组分是壳、、基镜等,有机型以Ⅲ型为主;
Main macerals of hydrocarbon generation are sporinite, cutinite, alginite, bituminite, liptodetrinite and desmocollnite in source rocks from Jurassic coal measure in Northwest China.
西北地
侏罗纪煤系地层中主要的生烃显微组分是孢子、角、、沥青、碎屑脂、基镜等，而树脂、木
等早期低熟生油组分含量很低。
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