Skip to main content
Progress in Earth and Planetary Science
Fig. 4 | Progress in Earth and Planetary Science

Fig. 4

From: A laboratory experiment on salt weathering by humidity change: salt damage induced by deliquescence and hydration

Fig. 4

Ubara sandstone samples subjected to 100 humidity-change cycles. The initial shape of each sample was cylindrical, 3.5 cm in diameter and height. The internal diameter of the sieve was 7.5 cm, and the opening was 2 mm. a NaCl caused the most intensive breakdown. The sandstone completely disintegrated into sand particles. b The specimen with Na2SO4 kept its initial shape, although the sides of the cylinder showed irregular morphology due to flaking. c The specimen with MgSO4 showed moderate weathering, although it obviously disintegrated

Back to article page