In accordance with the confusion on classification of source rocks, the authors raised a source rock classification for its enriched and dispersed organic matte
Experimental results indicate that propagation paths of cracks in geomaterials are often irregular, producing rough fracture surfaces which are fractal. A formu
According to the Researches on Coal Development Strategies in China(1991-2020),the production scale of coal in China will increase to 2100 Mt in the year2020 an