Main macerals of hydrocarbon generation are sporinite, cutinite, alginite, bituminite, liptodetrinite and desmocollnite in source rocks from Jurassic coal measure in Northwest China.
西北地区侏罗纪煤系地层中主要的生烃显微组分是孢子
、角质、藻类、
质、碎屑类
、
质镜质等，而树、
栓质等早期低熟生油组分含量很低。
