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7 伊敏组15、16煤组w(Sr)/w(Ba)值(a)、w(Th)/w(U)值(b)特征

Fig.7 w(Sr)/w(Ba) value(a) and w(Th)/w(U) value(b) characteristics of coal groups 15 and 16 of Yimin Formation