中南矿冶学院学报,1994,25( 6) : 762 ~ 766 [31] Nifantov B F. Valuable and toxic elements in coals. Coal Resources of Russia,Geoinformmark: Moscow,2003: 77 ~ 91 [32] Arbuzov S I,Ershov VV,Rikhvanov LP,et
( 中国矿业学院北京研究生部硕士论文) ,1986 A discovery of the anisotropic micrinite in the Late Paleozoic coal seams of western Henan coalfield and the discussion on its origin Xiao Xianming Ren Deyi Abstract: The