S_w plotted against T for different types of frozen saline clay: lean clay (S = 19 g/l and 40 g/l) with 15% clay and 85% silt content (Liu et al., 2020); silty clay (S = 20 g/l and 30 g/l) with unknown clay and silt content (Patterson & Smith, 1985); Morin clay (S =  12 g/l and 29 g/l) with 12·5% clay content and 72·9% silt content (Zhou et al., 2020)