Mottling definition

Mottling means a soil condition that results from oxidizing or reducing minerals due to soil moisture changes from saturated to unsaturated over time. Mottling is characterized by spots or blotches of different colors or shades of color (grays and reds) interspersed within the dominant color as described by the USDA soil classification system. This soil condition can be indicative of historic seasonal high groundwater level, but the lack of this condition may not demonstrate the absence of groundwater.
Mottling means a color pattern observed in soil consisting of blotches or spots of contrasting color. The term "mottle" refers to an individual blotch or spot. The terms “color variegation,” “iron depletion” and “iron concentration” are equivalent to the term “mottling.” Mottling due to redoximorphic reactions is an indication of seasonal or periodic and recurrent saturation.
Mottling means a soil irregularly marked with spots of different colors that vary in number and size which may indicate seasonal or perennial saturation in some part or all of the soil matrix and geogenic in nature.

Examples of Mottling in a sentence

  • Layer Soil Type (USDA)Test Pit B Depth of Mottling Depth to Rest.

  • Active Mottling) reflects alternating reduction and oxidation conditions due to water table fluctuations.

  • Mottling was observed at approximately 1.2 to 4 feet below the existing ground surface in all the test pits from the GeoResources report.

  • Peeling on any portion of the coatings.b. Blistering on any portion of the coatings.c. Color fading below a 35 gloss rating, in accordance with ASTM D523.d. Mottling defects that exceed 3 percent of the topcoat surface.e. Visible cracking of the topcoat material.f. Visible rusting discoloration on the coating.g. Sag or other evidence of coating adhesion loss.

  • Mottling occurs due to the alternating of wetting and drying of the soil, and appears when the soil is exposed to air during dry periods allowing for the oxidation of metals, such as iron, to take place (Collins, 2005).


More Definitions of Mottling

Mottling means a soil irregularly marked with spots of different colors that vary in number and size which may indicate poor aeration, lack of drainage and the upper extent of the seasonal high water table.
Mottling means spots or blotches of different colors or hues interspersed with the dominant color of a soil, created by the following three (3) basic processes:
Mottling. (mottles, mottled) shall mean and refer to secondary soil colors not associated with compositional properties. Redoximorphic mottles are a type of mottle associated with wetness. It results from oxidizing or reducing minerals due to soil moisture changes from saturated to unsaturated over time. Mottling is characterized by spots or blotches of different colors or shades of color interspersed within the dominant color as described by the USDA soil classification system. This soil condition can be indicative of historic seasonal high groundwater level, but the lack of this condition may not demonstrate the absence of groundwater. Lithochromatic mottles are a type of mottling associated with variations of color due to weathering of parent materials
Mottling means a soil condition that results from oxidizing or reducing conditions due to soil moisture changes from saturated conditions to unsaturated conditions over time. Mottling is characterized by spots or blotches of different colors or shades of color (grays and reds) interspersed with the dominant color as described by the United States Department of Agriculture soil classification system. The soil can be indicative of historic seasonal groundwater levels.
Mottling means a soil condition that results from oxidizing or reducing minerals due to soil moisture changes from saturated to unsaturated over time. Mottling is characterized by spots or blotches of different colors or shades of color (grays and reds) interspersed within the dominant color as described by the USDA soil classification system. The soil condition can be indicative of
Mottling means a color pattern observed in soil consisting of blotches or spots of contrasting color. The term "mottle" refers to an individual blotch or spot. Mottling is an indication of seasonal or periodic and recurrent saturation.
Mottling means a condition found in soil profiles that consist of irregular spots of varying color number and/or size. Mottling indicates water is seasonally present or has been historically present at the elevation where the features are found. Mottling can also be an indication of poor aeration and impeded drainage.