Glossary
Definitions from the Soil Science Society of America (SSSA)
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| Eluviation | The movement of material in true solution or colloidal suspension from one place to another within the soil. Soil horizons that have lost material through eluviation are eluvial, those that have received material are illuvial. |
| Eolian soil material | Earthy parent material accumulated through wind action, commonly refers to sandy material in dunes or to loess in blankets on the surface. |
| Erosion | The wearing away of the land surface by water, wind, ice, or other geologic agents and by such processes as gravitational creep. |
| Erosion | Erosion caused by geologic processes acting over long geologic periods and resulting in the wearing away of mountains and the building up of such landscape features as flood plains and coastal plains Synonym: natural erosion. |
| Erosion(accelerated) | Erosion much more rapid than geologic erosion, mainly as a result of the activities of man or other animals or of a catastrophe in nature, for example, fire, that exposes the surface. |
| Excess fines(in tables) | Excess silt and clay in the soil. The soil is not a source of gravel or sand for construction purposes. |