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Episaturation <br />A type of saturation indicating a perched water table in a soil in which saturated <br />layers are underlain by one or more unsaturated layers within 2 meters of the <br />surface. <br />Erosion <br />The wearing away of the land surface by water, wind, ice, or other geologic <br />agents and by such processes as gravitational creep. <br />Erosion (accelerated) <br />Erosion much more rapid than geologic erosion, mainly as a result of human or <br />animal activities or of a catastrophe in nature, such as a fire, that exposes the <br />surface. <br />Erosion (geologic) <br />Erosion caused by geologic processes acting over long geologic periods and <br />resulting in the wearing away of mountains and the building up of such <br />landscape features as flood plains and coastal plains. Synonym: natural <br />erosion. <br />Erosion pavement <br />A surficial lag concentration or layer of gravel and other rock fragments that <br />remains on the soil surface after sheet or rill erosion or wind has removed the <br />finer soil particles and that tends to protect the underlying soil from further <br />erosion. <br />Erosion surface <br />A land surface shaped by the action of erosion, especially by running water. <br />Escarpment <br />A relatively continuous and steep slope or cliff breaking the general continuity of <br />more gently sloping land surfaces and resulting from erosion or faulting. Most <br />commonly applied to cliffs produced by differential erosion. Synonym: scarp. <br />Escarpment, bedrock (map symbol) <br />A relatively continuous and steep slope or cliff, produced by erosion or faulting, <br />that breaks the general continuity of more gently sloping land surfaces. <br />Exposed material is hard or soft bedrock. <br />Escarpment, nonbedrock (map symbol) <br />A relatively continuous and steep slope or cliff, generally produced by erosion <br />but in some places produced by faulting, that breaks the continuity of more <br />gently sloping land surfaces. Exposed earthy material is nonsoil or very shallow <br />soil. <br />Esker <br />A long, narrow, sinuous, steep-sided ridge of stratified sand and gravel <br />deposited as the bed of a stream flowing in an ice tunnel within or below the ice <br />(subglacial) or between ice walls on top of the ice of a wasting glacier and left <br />Custom Soil Resource Report <br />37 Index #10