Table 1 Mineral contents (wt.%) of the samples by XRD.
Deterioration pattern | Sample | Weathering State | Qz | Fsp | Cal | Gp | Thn | Clay minerals | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total | Ilt-Sme | Mca/Ilt | Chl | Kln | ||||||||
Subflorescence | S0 | Salt crystals | 60.7 | 13.3 | 9.2 | - | 8.3 | 8.5 | / | / | / | / |
S1 | Weathered | 79.4 | 13.8 | 0.5 | - | - | 5.4 | 2.9 | 2.1 | 0.3 | 0.2 | |
S2 | Fresh | 78.9 | 14.6 | 2.0 | - | - | 4.5 | 2.1 | 1.4 | 0.5 | 0.5 | |
Crust | C0 | Salt crystals | 64.1 | 10.3 | 15.1 | 2.3 | - | 8.2 | / | / | / | / |
C1 | Weathered | 67.6 | 15.0 | 8.7 | 1.3 | - | 7.4 | 6.0 | 0.6 | 0.4 | 0.4 | |
C2 | Fresh | 74.1 | 14.4 | 6.1 | - | - | 5.4 | 3.4 | 1.3 | 0.3 | 0.4 | |