Fig. 2. Textural triangle for the sand, silt, and clay fractions expressed in proportion. Permissible joint values for the sand, silt, and clay fractions must lie on the triangle, so that sand + silt + clay = 1.
Fig. 2. Textural triangle for the sand, silt, and clay fractions expressed in proportion. Permissible joint values for the sand, silt, and clay fractions must lie on the triangle, so that sand + silt + clay = 1.