The organic source rocks of Paleogene from Huangxian basin are rich in the content of exinite and sapropelinite,especially resinite and alginite.

黄地下第三系有机岩中含有丰富的壳组和腐泥组,尤其发育树脂和藻类,这些富组分的荧光性各不相同。

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、、藻类、沥青、碎屑类脂、基镜等，而树脂、木栓等早期低熟生油组分含量很低。