LOCATION EUHARLEE GAEstablished Series
TAXONOMIC CLASS: Fine-loamy, siliceous, semiactive, thermic Typic Hapludults
TYPICAL PEDON: Euharlee silt loam--idle. (Colors are for moist soil unless otherwise stated.)
A--0 to 4 inches; very dark gray (10YR 3/1) silt loam; weak fine granular structure; friable; many fine and medium roots; 14 percent gravel; strongly acid; clear smooth boundary. (2 to 4 inches thick)
E--4 to 6 inches; grayish brown (2.5Y 5/2) silt loam; weak fine granular structure; friable; many fine and medium roots; common fine pores; 13 percent gravel; very strongly acid; clear smooth boundary. (2 to 7 inches thick)
BE--6 to 16 inches; brownish yellow (10YR 6/6) silt loam; weak fine angular blocky structure; friable; common fine roots; common fine pores; 10 percent gravel; pockets of grayish brown (2.5Y 5/2) and common coarse streaks of material from A horizon; very strongly acid; clear wavy boundary. (0 to 14 inches thick)
Bt1--16 to 30 inches; brownish yellow (10YR 6/6) loam; weak medium angular blocky structure; friable; few fine roots; common fine pores; few faint clay films on faces of peds; 10 percent gravel; very strongly acid; gradual irregular boundary. (12 to 25 inches thick)
Bt2--30 to 43 inches; yellowish brown (10YR 5/6) clay loam; few fine, distinct yellowish red and light yellowish brown mottles; moderate medium angular blocky structure; friable; few fine roots; common fine pores; common distinct clay films on faces of peds; 12 percent gravel; very strongly acid; clear wavy boundary. (10 to 30 inches thick)
BC--43 to 57 inches; mottled strong brown (7.5YR 5/6), yellowish brown (10YR 5/6), reddish brown (2.5YR 4/4), and light gray (2.5Y 7/2) gravelly silty clay; weak medium subangular blocky structure, (25 percent rock structure); firm; few fine pores; 25 percent gravel; few faint clay films on faces of some peds; very strongly acid; diffuse irregular boundary. (0 to 20 inches thick)
C--57 to 67 inches; reddish brown (2.5YR 4/4), very pale brown (10YR 8/2), and strong brown (7.5YR 5/6) very friable weathered siltstone, and sandstone and cherty limestone; pockets of gravelly silty clay; very strongly acid.
TYPE LOCATION: Polk County, Georgia; about 2.3 miles west on Kankakee Road from Georgia Highway 101 at Aragon, Georgia; 0.25 mile north on Terry White Road, 20 feet west of center of paved county road.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 40 to more than 60 inches. Depth to hard rock is more than 60 inches. The soil is strongly acid or very strongly acid, except for surface layers that have been limed. The gravel content ranges from 3 to 15 percent by volume in the A, E, BE and Bt horizons and from 10 to 35 percent in the BC and C horizons. The average clay content of the control section ranges from 20 to 35 percent, and silt content from 30 to 60 percent.
The A horizon has hue of 5Y, 2.5Y or 10YR, value of 3, 4, or 5, and chroma of 1 through 6. It is silt loam, loam, or fine sandy loam.
The E horizon has hue of 5Y, 2.5Y or 10YR, value of 5 or 6, and chroma of 2, 3, or 4. It is silt loam, loam, or fine sandy loam.
The BE horizon, where present, has hue of 2.5Y or 10YR, value of 5, 6, or 7, and chroma of 4, 6, or 8. It is loam or silt loam.
The Bt horizon has hue of 10YR, 7.5YR or 5YR, value of 4, 5, or 6, and chroma of 6 or 8. Red, brown, and yellow mottles range from none to common in the upper part and few to many in the lower part. In some pedons, the lower part of the Bt horizon is mottled and lacks a dominant matrix color. Texture is clay loam, loam, or silty clay loam.
The BC horizon is mottled red, brown, yellow, gray, and white. It is cherty clay, cherty silty clay, cherty silty clay loam, loam, or clay loam.
COMPETING SERIES: These are the Apison, Cahaba, Cowarts, Durham, Emporia, Hartsells, Kempsville, Linker, Marvin, Nauvoo, Oktaha, Pirum, Sipsey, Smithdale, Spadra, Stringtown, Suffolk and Vaucluse series of the same family. Apison, Hartsells, Linker, Nauvoo, Oktaha, Pirum and Sipsey have bedrock at depths less than 60 inches. Cahaba, Cowarts, Emporia, Kempsville, Marvin, Smithdale, Suffolk, and Vaucluse have formed in Coastal Plain sediments. Durham soils have formed in residuum from crystalline rocks. Spadra soils have formed in alluvial sediments. Springtown soils have 1 to 5 percent plinthite in the lower part of the Bt horizon.
GEOGRAPHIC SETTING: Euharlee soils are on very gently sloping to gently sloping ridgetops and side slopes. Slopes range from 2 to 10 percent. The soils developed in materials weathered from cherty limestone, interbedded siltstone, sandstone and shale. Average annual temperature is about 60 to 67 degrees F. and average annual precipitation is about 47 to 55 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Cunningham, Dewey, Etowah, Fullerton, Holston and Minvale series. Cunningham, Dewey and Fullerton soils have a clayey control section. Etowah, Holston and Minvale soils have thicker sola.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderately slow permeability.
USE AND VEGETATION: Most areas are used for the production of cotton, corn, small grain, hay, and pasture. Some areas are now in forest or idle. Native vegetation is forest of mixed hardwood and scattered pine.
DISTRIBUTION AND EXTENT: The Southern Appalachian ridges and valleys of Georgia, Alabama, and Tennessee. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Polk County, Georgia; 1975; Chattooga, Floyd, and Polk Counties, Georgia survey area.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from the surface to approximately 6 inches. (A and E horizons)
Argillic horizon - the zone from approximately 16 to 57 inches (Bt1, Bt2 and BC horizons).