Mottling Mottling Soil Color Mottling refers to repetitive color changes that cannot be associated with compositional properties of the soil. A color pattern that can be related to proximity to a ped surface or other organizational or compositional feature is not mottling.
Mottle description follows the dominant color.
Mottles are described by quantity, size, contrast, color, and other attributes in that order. The notations must clearly indicate to which colors the terms for quantity apply. By convention, the example is interpreted to mean that the quantity of the two colors together is between 2 and 20 percent. Size refers to dimensions as seen on a plane surface. If the length of a mottle is not more than two or three times the width, the dimension recorded is the greater of the two.