Coal spontaneous combustion is one of disaster in Yima coalfield. 炭自燃田。
There are conditions of seam gas formation in the Enhong basin and the Laochang coalfield of Laochang-Guishan basin. 恩洪盆老厂-圭山盆老厂矿备形层气藏件。
Shenhua Group Shenfu Dongsheng Coalfield is an important coal base in China. With a proven geological deposit of223.6 billion tons, it is one of the world's top eight coalfields. 神华集团神府胜田重炭,探质储2,236吨,属界八田。
coalfield [ noun ] a region where there is coal underground <noun.location>