Sandstone alternation as revealed by spheroidal weathering in the Carboniferous Taiyuan Formation of Shimenzhai Area, Liujiang Basin - Shiqiang Xia; Hongwen Deng; Zhen Liu; Nadeem Ahmad; Taotao Yan; Wei Wu; Quan Li; Guiyu Dong; Haigang Lao; Xiaoying Han; Bin Gao (Applied Geophysics, 2026)