LOCATION KOLOMOKI GA+ALEstablished Series
TAXONOMIC CLASS: Fine, kaolinitic, thermic Typic Hapludults
TYPICAL PEDON: Kolomoki fine sandy loam, with a convex slope of 1 percent on a river terrace at an elevation of 130 feet--in a cultivated area. (Colors are for moist soils.)
Ap--0 to 8 inches; dark brown (10YR 4/3) fine sandy loam; weak fine granular structure; very friable; many fine roots; few fine flakes of mica; strongly acid; clear smooth boundary. (6 to 10 inches thick)
Bt--8 to 28 inches; yellowish red (5YR 4/6) clay; moderate medium subangular blocky structure; friable; few patchy clay films on faces of peds; common very fine and fine roots; few fine flakes of mica; strongly acid; gradual smooth boundary. (18 to 33 inches thick)
Bt2--28 to 35 inches; yellowish red (5YR 5/6) sandy clay loam; weak medium subangular blocky structure; friable; sand grains bridged and coated with clay; few fine roots; few fine flakes of mica; very strongly acid; clear wavy boundary. (5 to 13 inches thick)
C1--35 to 42 inches; strong brown (7.5YR 5/6) sandy loam; massive; few very fine roots; common fine flakes of mica; very strongly acid; clear wavy boundary. (5 to 12 inches thick)
C2--42 to 65 inches; strong brown (7.5YR 5/8) sand; single grained; loose; common fine flakes of mica; very strongly acid.
TYPE LOCATION: Early County, Georgia; in a cultivated field near the Chattahoochee River 13.0 miles west of Blakely, 0.2 mile east of Gilbert Landing.
RANGE IN CHARACTERISTICS: The solum thickness is 30 to 55 inches. It is very strongly acid to medium acid throughout except for the surface layer in limed areas. Fine flakes of mica are few to common throughout. The control section has an average clay content of 35 to 50 percent and an average silt content of 15 to 35 percent.
The Ap or A horizon has hue of 7.5YR or 10YR, value of 4 or 5, and chroma of 3 or 4. Texture is fine sandy loam, sandy loam, loamy fine sand, or loamy sand.
The BA or BE horizons, where present, have hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 4 or 6, or hue of 5YR or 7.5YR, value of 5, and chroma of 8. It is sandy loam or sandy clay loam.
The Bt horizon has hue of 2.5YR or 5YR value of 4 or 5 chroma of 6 or 8. Few to common mottles in shades of brown and yellow are in the Bt horizon of some pedons. Texture is clay, clay loam, sandy clay loam or sandy clay.
The BC horizon, where present, has hue of 5YR, 7.5YR, or 10YR, value of 4 or 5, and chroma of 4 or 6, or hue of 5YR, 7.5YR or 10YR, value of 5, and chroma of 8. Texture is sandy clay loam or sandy loam.
The C horizon has hue of 5YR, 7.5YR, or 10YR, value of 5 or 6, and chroma of 6 or 8. Few to common mottles in shades of brown or yellow are in some pedons. This horizon is sandy clay loam, sandy loam, and below 40 inches is loamy sand or sand. Some pedons have subhorizons stratified with the contrasting textures.
COMPETING SERIES: These are Appling, Aragon, Cataula, Cecil, Chestatee, Georgeville, Herndon, Hulett, Madison, Nankin, Nectar, Neeses, Pacolet, Spotsylvania, and Wedowee series of the same family. Appling, Cataula, Cecil, Chestatee, Georgeville, Herndon, Hulett, Madison, Pacolet, Spotsylvania, and Wedowee soils are on uplands of the Southern Piedmont; they are underlain by residuum, saprolite, or crystalline rock. Aragon soils have chert fragments throughout. Chestatee soils also have more than 15 percent by volume coarse fragments throughout. Nankin soils are on the uplands of the Southern Coastal Plain. Nectar soils are underlain by sandstone bedrock 40 to 60 inches below the surface. Neeses soils are dense and slightly cemented in the lower part of the Bt horizon.
GEOGRAPHIC SETTING: Kolomoki soils are on convex parts of stream terraces of the larger streams of the Southern Coastal Plain. Slopes are dominantly 0 to 3 percent but range up to 5 percent. The soil formed in clayey and sandy alluvial sediment that contains an appreciable amount of silt. Mean annual precipitation is about 45 to 55 inches and mean annual temperature is about 60 to 70 degrees F. Under abnormal conditions the lower lying areas may be flooded for very brief periods.
GEOGRAPHICALLY ASSOCIATED SOILS: These are Cahaba, Eulonia, Eunola, Hornsville, Johns, Kalmia, Leaf, Maxton, Myatt, Rembert, Riverview, Trebloc, Wahee, and Weston series. Cahaba, Kalmia, Maxton, and Riverview soils are on similar landscapes and have fine-loamy control sections. Hornsville, Eulonia, Eunola, and Johns soils have chroma 2 mottles at depths less than 24 inches below the top of the argillic horizon. Leaf, Myatt, Rembert, Trebloc, and Weston soils are dominantly gray immediately below the A horizon and are on lower lying areas. Wahee soils are dominantly gray at depths less than 30 inches below the surface.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderate permeability.
USE AND VEGETATION: Most of the soil is used for crops such as corn, soybeans, peanuts, small grain, and truck crops. The remainder is in pine or mixed pine and hardwood. Common species include loblolly pine, slash pine, longleaf pine, sweetgum, red oak, American holly, and dogwood.
DISTRIBUTION AND EXTENT: Georgia, and possibly Alabama, North Carolina, South Carolina, and Virginia. The series is not extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama
SERIES ESTABLISHED: Early County, Georgia; 1982.
REMARKS: Diagnostic features and horizons recognized in this pedon are:
Ochric epipedon - the zone from the surface to approximately 8 inches (Ap horizon).
Argillic horizon - the zone from approximately 8 to 35 inches (Bt and BC horizons).