A small quantity of sporinite and cutinite were identified in addition to the majority of the hydrocarbon-forming micro-components that mainly occurred as matrix vitrinites.

烃源岩主要生烃显微组分为基质镜质，少量、角质和碎壳质。

Main macerals of hydrocarbon generation are sporinite, cutinite, alginite, bituminite, liptodetrinite and desmocollnite in source rocks from Jurassic coal measure in Northwest China.

西北罗纪煤系层中主要的生烃显微组分是、角质、藻类、沥青质、碎类脂、基质镜质等，而树脂、木栓质等早期低熟生油组分含量很低。