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6 伊敏组15、16煤组w(Sr)/w(Cu)值特征
Fig.6 w(Sr)/w(Cu) value characteristics of coal groups 15 and 16 of Yimin Formation