The Taibei Depression is the main oil and gas bearing area of Tuha Basin, and the coal bearing stratum of the Xishanyao Formation is the most important source rock in the area.
台北凹陷是吐哈盆地的主要含油气区，而西山窑组煤系地层是该地区的主力烃源岩。
2
The comprehensive analysis of above features showed that there was a strong biodegradation of saturated hydrocarbon fractions in Jurassic coal rock in Manjiaer Depression of Tarim Basin.
通过对这些指标的综合分析，可以推断塔里木盆地满加尔凹陷煤系曾遭受较强烈的生物降解。
3
There are not only abundant coal-measure rock resources but coal-bed gas resources in Sha Ehu depression of Tuha basin.