The coal and coaly organic matter are believed mainly to be hydrocarbon souce of the basin in the middlelow Jurassic of the Turpan-Hami basin. 吐哈盆地中下佛罗统煤及煤系有机质被确认为该盆地的主力烃源岩。
Coaly \Coal"y\, a. [From {Coal}, n.] Pertaining to, or resembling, coal; containing coal; of the nature of coal.