The umbric epipedon has the same general characteristics as the mollic epipedon except it has a low base saturation ( 0.6 % ).
12.
Other soils which have a mollic epipedon are classified as Vertisols because the presence of high shrink swell characteristics and relatively high clay contents takes precedence over the mollic epipedon.
13.
Other soils which have a mollic epipedon are classified as Vertisols because the presence of high shrink swell characteristics and relatively high clay contents takes precedence over the mollic epipedon.
14.
The mollic epipedon is a mineral surface horizon that is distinguished by its dark color, an associated accumulation of organic matter ( > 0.6 % throughout ), for its thickness ( > 25 cm ), and for its softness even when dry.
