Mineralogical and geochemical characteristics of altered volcanic ashes (tonsteins and K-bentonites) from the latest Permian coal-bearing strata of western Guizhou Province, southwestern China

Autor: Shen, Minglian, Dai, Shifeng, Graham, Ian T., Nechaev, Victor P., French, David, Zhao, Fenghua, Shao, Longyi, Liu, Shande, Zuo, Jianping, Zhao, Jingtao, Chen, Kun, Xie, Xuanhao
Zdroj: In International Journal of Coal Geology 15 March 2021 237
Databáze: ScienceDirect