LOCATION WHITEFIELD OKEstablished Series
TAXONOMIC CLASS: Fine, mixed, active, nonacid, thermic Alfic Udarents
TYPICAL PEDON: Whitefield silt loam, 3 percent slope, pasture land. (Colors are for moist soil unless otherwise stated.)
Ad--0 to 3 inches; dark brown (10YR 4/3) silt loam; massive and platy structure; extremely hard, friable; 15 percent fragments of sandstone less than 76mm across; medium acid; abrupt smooth boundary. (2 to 16 inches thick)
Cd1--3 to 15 inches; yellowish brown (10YR 5/4) gravelly silty clay loam; massive structure; extremely hard, friable; 15 percent fragments of sandstone less than 76mm across; common fine distinct strong brown mottles; moderately alkaline; clear smooth boundary. (10 to 36 inches thick)
Cd2--15 to 29 inches; yellowish brown (10YR 5/6) gravelly silty clay loam; massive structure; extremely hard, very firm; 30 percent fragments of shale less than 76mm across; common medium distinct strong brown and light brownish gray mottles; moderately alkaline; abrupt smooth boundary. (0 to 24 inches thick)
Cr--29 to 31 inches; dark gray (2.5YR 4/0) shale; churned and hard.
TYPE LOCATION: Haskell County, Oklahoma 2300 feet east and 100 feet south of the northwest corner of Sec. 10, R.21E., T.8N.
RANGE IN CHARACTERISTICS: Solum thickness and depth to unconsolidated bedrock ranges from 20 to 40 inches. Fragments of shale and sandstone range from 0 to 35 percent throughout the profile.
The Ad horizon has hue of 10YR or 7.5YR, value of 4 or 5, and chroma of 3 or 4. Texture of the fine earth fraction is fine sandy loam, very fine sandy loam, loam, or silt loam. Reaction ranges from strongly acid to neutral.
The Cd horizon has hue of 5YR, 7.5YR and 10YR, value of 4 through 6 and chroma of 2 through 8. Texture of the fine earth fraction is clay loam, silty clay loam, or silt loam. It is mottled in shades of red, brown, or gray.
The Cr horizon has hue of 2.5Y, value of 4, and chroma of 0. It is shale.
COMPETING SERIES: These include the tentative Lequire, Coalgate, Ironbridge, Latimer and Emachaya series in the same family, and the Kanima, Blocker and Cartersville soils in closely similar families. Lequire and Blocker soils are less than 20 inches deep over shale material. Emachaya soils are greater than 40 inches deep over shale material. Cartersville soils are less than 20 inches deep and less clayey than Whitefield soils. Kanima soils have more coarse fragments throughout the profile. Coalgate, Ironbridge and Latimer soils have sodic horizons.
GEOGRAPHIC SETTING: Whitefield soils are on nearly level to gently sloping area of strip mines in the Arkansas Ridges and Valley land resource area. These soils are formed in the premine soils of the Stigler, Tamaha and Count series. The average annual temperature ranges from 54 to 57 degrees F., and the average annual precipitation ranges from 42 to 45 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These include the competing tentative series Blocker, Cartersville, Emachaya and Ironbridge and the Kanima series. Blocker soils are on steeper cutslope areas. Lequire soils are on similar areas and have less than 20 inches of reclaim material over the shale. Cartersville soils are on steeper areas and are less clayey than Whitefield soils. Ironbridge soils are on similar areas but have natric horizons. Emachaya soils are on similar areas but are greater than 40 inches deep over the shale.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is slow to moderate. Permeability is very slow.
USE AND VEGETATION: Used mainly for pasture land. Vegetation is bermuda grass, love grass, or plains bluestem.
DISTRIBUTION AND EXTENT: Oklahoma and Arkansas. The series is not extensive with less than 5000 acres.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Haskell County, Oklahoma; 1989.