LOCATION TALBOTT TN+AL GA KYEstablished Series
TAXONOMIC CLASS: Fine, mixed, semiactive, thermic Typic Hapludalfs
TYPICAL PEDON: Talbott silt loam--cultivated. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 6 inches; brown (10YR 4/3) silt loam; moderate fine granular structure; friable; many fine roots; few fine black concretions; strongly acid; clear smooth boundary. (4 to 8 inches thick)
Bt1--6 to 10 inches; yellowish red (5YR 4/6) clay; few medium distinct brown (7.5YR 4/4) mottles; moderate medium angular and subangular blocky structure; firm; patchy clay films; common fine roots, few fine black concretions; few small fragments of chert up to 1 inch across; strongly acid; gradual smooth boundary.
Bt2--10 to 20 inches; yellowish red (5YR 5/6) clay; common fine and medium distinct yellowish brown (10YR 5/4) and strong brown (7.5YR 5/6) mottles; moderate to strong medium angular blocky structure; firm; plastic; continuous clay films; few fine roots; few fine dark brown and black concretions; strongly acid; gradual smooth boundary.
Bt3--20 to 25 inches; yellowish red (5YR 5/6) clay; common fine and medium distinct yellowish brown (10YR 5/6) and red (2.5YR 4/6) mottles; strong medium and coarse angular blocky structure; very firm, plastic; continuous clay films; few fine roots; few fine brown and black concretions; strongly acid; clear wavy boundary.
Bt4--25 to 31 inches; yellowish brown (10YR 5/6) clay; common fine and medium distinct mottles of yellowish red (5YR 4/6), light olive brown (2.5Y 5/6), and pale brown (10YR 6/3); moderate coarse angular blocky structure; very firm, plastic; continuous clay films; few fine black concretions; medium acid; gradual smooth boundary. (Thickness of the Bt horizon ranges from 12 to 35 inches.)
C--31 to 37 inches; light olive brown (2.5Y 5/4) clay; common fine and medium distinct yellowish brown (10YR 5/6), light brownish gray (10YR 6/2), and yellowish red (5YR 5/6) mottles; massive; very firm, plastic; few fine black and dark brown concretions; neutral. (0 to 10 inches thick)
R--37 inches; limestone rock.
TYPE LOCATION: Rutherford County, Tennessee; 7 miles from Murfreesboro Courthouse, southeast on U. S. Highway 41, 2 miles east on gravel road to Cedar Grove Church, 3/4 mile east of Church on gravel road, south 1/4 mile on gravel road to Lytle Creek, 325 feet south of Lytle Creek and 100 feet west of gravel road.
RANGE IN CHARACTERISTICS: Thickness of solum and depth to bedrock ranges from 20 to 40 inches. Rock fragments in this soil are normally less than 5 percent, but range from 0 to 10 percent in all horizons. It ranges from slightly acid to strongly acid except the horizons near bedrock ranges to mildly alkaline.
The Ap or A horizon has hue of 10YR or 7.5YR, value of 3 to 5, and chroma of 2 to 4. Eroded areas also have hue of 5YR and chroma of 6. Pedons with value of 3 are less than 6 inches thick. Texture is silt loam, except eroded and severely eroded areas include silty clay loam, silty clay, or clay.
The E horizon, where present, has hue of 10YR or 7.5YR value of 4 to 6 and chroma of 2 to 4. Texture is silt loam.
In some pedons, the A and E horizons formed in cherty colluvium and have a texture of gravelly loam or gravelly silt loam. There are other pedons where the A and E horizons formed in loamy colluvium from sandstone and the texture is loam. These pedons have a discontinuity between the colluvium and the clayey Bt horizon.
The Bt horizon has hue of 7.5YR to 2.5YR, value of 4 or 5, and chroma of 4 to 8. The lower part of the Bt horizon also has hue of 10YR, value of 5, and chroma of 4 to 8. Mottles range from none to common in shades of brown, yellow, and red. Texture is silty clay or clay, except the upper few inches is silty clay loam in some pedons.
The BC and C horizons, where present, have hue of 2.5Y to 5YR, value of 4 to 6, and chroma of 4 to 8. Mottles range from few to many in shades of brown, yellow, red, and gray. In some pedons, it is mottled without a dominant matrix color. Texture is silty clay or clay.
COMPETING SERIES: These are the Archer, Bradyville, Conasauga, Mimosa and Winnsboro series in the same family and the Barfield, Braxton, Capshaw, Carbo, Colbert, Collegedale and Hampshire series in closely related families. Archer soils have sandy A horizons. Barfield soils are less than 20 inches to bedrock. Bradyville, Braxton, Capshaw, Colbert, Collegedale, Hampshire, Mimosa, and Winnsboro are all more than 40 inches deep to bedrock. In addition, Capshaw, Colbert, and Hampshire soils have B horizons with hue of 7.5YR or yellower. Carbo and Conasauga soils have a B horizon with hue of 7.5YR or yellower. In addition, Carbo soils have a B horizon with more than 60 percent clay.
GEOGRAPHIC SETTING: Talbott soils are on nearly level to steep upland slopes with gradients ranging from 0 to 70 percent. Some areas have Karst topography. The soil formed in clayey residuum weathered from limestone. At the type location, mean annual temperature is 60 degrees F., and mean annual rainfall is 50 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Barfield, Bradyville, Carbo, Capshaw, Colbert, and Collegedale series.
DRAINAGE AND PERMEABILITY: Well drained; medium and rapid runoff; moderately slow permeability
USE AND VEGETATION: Originally hardwoods, chiefly oak, hickory, elm, maple, and redcedar. Most of the areas are cleared. About 70 percent of the cleared areas are in pasture and hay. Crops include corn, small grain, tobacco, and soybeans. Many areas are idle.
DISTRIBUTION AND EXTENT: The Appalachian Ridge and Valley, Highland Rim and Nashville Basin in Tennessee, northern Georgia, and Alabama, and possibly Kentucky. The series is of large extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Jefferson County, Tennessee; 1936.
REMARKS: Diagnostic horizons recognized in this pedon are:
Ochric epipedon - 0 to 6 inches (Ap horizon)
Argillic horizon - 6 to 31 inches (Bt horizon)