伊敏盆地伊敏组煤层地球化学特征及沉积环境

李斌, 张跃恒, 洪链涵, 袁静仪, 高婷, 董振国

Geochemical characteristics and sedimentary environment of coal seams in the Yimin Formation in the Yimin Basin

Li Bin, Zhang Yue-Heng, Hong Lian-Han, Yuan Jing-Yi, Gao Ting, Dong Zhen-Guo

图3 伊敏组15、16煤组CIA值(a)、w(Si)/w(Al)值(b)、K值(c)、m值(d)、n值(e)特征

Fig.3 Characteristics of CIA value(a), w(Si)/w(Al) value(b), K value(c), m value(d) and n value(e) of coal groups 15 and 16 of Yimin Formation