Critical element (Nb-Ta-Zr-Hf-REE-Ga-Th-U) mineralization in Late Triassic coals from the Gaosheng Mine, Sichuan Basin, southwestern China: Coupled effects of products of sediment-source-region erosion and acidic water infiltration

Mingxuan Zhou, Shifeng Dai, Xibo Wang, Lei Zhao, Victor P. Nechaev, David French, Ian T. Graham, Jintian Zheng, Yan Wang, Mengjun Dong