Fig. 3From: Microscopic weathering mechanisms of subflorescence and crust patterns in the Nankan Grotto, northern Sichuan, ChinaX-ray diffraction mineral analysis results for the rock samples. a Whole rock sample. b Air-dried condition for clay fractions. c Ethylene glycol treatment for clay fractions. d Thermal treatment for clay fractions. The mineral symbols are the same as in Table 1Back to article page