LOCATION GRANT                   OK+KS

Established Series
Rev. CRC:CS:GFS
03/2014

GRANT SERIES


The Grant series consist of deep, well drained, moderately permeable soils that formed in material weathered predominantly from siltstone or silty shale of Permian age. These nearly level to moderately steep soils are on treads and risers of paleoterraces on uplands in the Central Rolling Red Prairies(MLRA 80A). Slopes range from 0 to 20 percent. Mean annual precipitation is 813 mm (32 inches) and mean annual air temperature is 16 degrees C (61 degrees F).

TAXONOMIC CLASS: Fine-silty, mixed, superactive, thermic Udic Argiustolls

TYPICAL PEDON: Grant silt loam--cultivated. (Colors are for dry soil unless otherwise stated.)

Ap--0 to 18 cm (0 to 7 inches); brown (7.5YR 5/2) silt loam, dark brown (7.5YR 3/2) moist; weak fine granular structure; slightly hard, very friable; many fine roots; slightly acid; clear smooth boundary. (0 to 25 cm [0 to 10 inches] thick)

A--18 to 30 cm (7 to 12 inches); brown (7.5YR 4/2) silt loam, dark brown (7.5YR 3/2) moist; moderate fine granular structure; slightly hard, very friable; many fine roots; slightly acid; gradual smooth boundary. (10 to 38 cm [4 to 15 inches] thick)

BA--30 to 41 cm (12 to 16 inches); reddish brown (5YR 4/3) silt loam, dark reddish brown (5YR 3/3) moist; moderate medium granular structure; slightly hard, friable; many fine roots; neutral; gradual smooth boundary. (0 to 33 cm [0 to 13 inches] thick)

Bt--41 to 81 cm (16 to 32 inches); reddish brown (5YR 5/4) silty clay loam, reddish brown (5YR 4/4) moist; moderate medium subangular blocky structure; hard, friable; common fine roots; clay films on faces of peds; neutral; gradual smooth boundary. (38 to 76 cm [15 to 30 inches] thick)

BC--81 to 119 cm (32 to 47 inches); yellowish red (5YR 5/6) silt loam, yellowish red (5YR 4/6) moist; weak medium subangular blocky structure; hard, friable; few fine roots; slightly alkaline; gradual smooth boundary. (0 to 76 cm [0 to 30 inches] thick)

C--119 to 150 cm (47 to 59 inches); yellowish red (5YR 5/6) silt loam, yellowish red (5YR 4/6) moist; massive; hard, friable; few fine roots; common medium fragments of sandstone; calcareous; moderately alkaline; clear smooth boundary. (0 to 76 cm (0 to 30 inches) thick)

Cr--150 to 183 cm (59 to 72 inches); red (2.5YR 5/6) weakly consolidated siltstone, red (2.5YR 4/6) moist; moderately alkaline; calcareous in seams.

TYPE LOCATION: Garfield County, Oklahoma; about 2 miles north and 6 1/2 miles west of Hillsdale, Oklahoma; 500 feet south and 100 feet east of the northwest corner of sec. 6, T. 24 N., R. 8 W.
Latitude: 36.5921
Longitude: 98.1038
Datum: WGS 84

RANGE IN CHARACTERISTICS:

Depth to paralithic contact: 102 to 152 cm (40 to 60 inches)to siltstone or silty shale
Depth to secondary carbonates: 76 to 152 cm (30 to 60 inches)

A and Ap horizons
Hue: 5YR to 10YR
Value: 2 or 3 moist, 4 or 5 dry
Chroma of 2 or 3 moist or dry
Texture: Silt loam, very fine sandy loam, or loam
Reaction: Slightly acid to slightly alkaline

The BA horizon (where present)
Hue: 2.5YR to 7.5YR
Value: 2 or 3 moist, 4 or 5 dry
Chroma: 2 to 4 moist or dry
Texture: Silt loam, very fine sandy loam, or loam
Reaction: Slightly acid to slightly alkaline

Bt horizon:
Hue: 2.5YR to 7.5YR
Value: 4 or 5 moist, 5 or 6 dry
Chroma: 2 to 8 moist or dry
Texture: Silt loam, loam, very fine sandy loam, silty clay loam, or clay loam
Sand content: Less than 15 percent fine and coarser sand
Clay content: Typically 22 to 28 percent but ranges from 18 to 35 percent.
Reaction: Slightly acid to moderately alkaline

BC horizon (where present)
Hue: 2.5YR or 5YR
Value: 4 to 6 moist, 5 to 7 dry
Chroma: 4 to 8 moist or dry
Texture: Silt loam or loam, but includes very fine sandy loam, silty clay loam
Reaction: Neutral to moderately alkaline

C horizon (where present)
Hue: 2.5YR or 5YR
Value: 4 to 7 moist, 5 to 8 dry
Chroma of 4 to 8 moist or dry
Texture: Silt loam, loam, or very fine sandy loam.
Fragments of sandstone 0.5 to 3 cm (0.2 to 1 inch) in diameter make up 0 to 20 percent by volume.
Reaction: Slightly alkaline to moderately alkaline

Cr horizon
Paralithic contact: Siltstone or silty shale. It is calcareous in some pedons. Fractures are greater than 10 cm (4 in) apart. The material is dense enough to be root restrictive. This material has low to moderate excavation difficulty and slakes in water in less than 15 hours.

COMPETING SERIES: These are the Vanoss series in the same family.
Vanoss soils: More than 152 cm (60 inches) to bedrock.

GEOGRAPHIC SETTING:
Parent Material: Material weathered from siltstone or silty shale. Some areas are covered with a thin mantle of loess.
Landscape: Uplands
Landform: Paleoterraces
Hillslope profile postion: Summits and backslopes
Slopes: 0 to 20 percent
Mean annual air temperature: 14 to 17 degrees C (57 to 63 degrees F)
Mean annual precipitation: 660 to 970 mm (26 to 38 inches)
Frost-free period: 190 to 220 days
Elevation: 213 to 457 m (700 to 1500 ft)
Thornthwaite annual P-E indices: 44 to 64

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bethany, Lucien), Nash, Nashville , Norge , and Pond Creek series.
Bethany soils: have greater than 35% clay in the particle size control section, and are on on risers of paleoterraces.
Lucien soils: 25 to 50 cm (10 to 20 inches) to paralithic contact, and are on adjacent low hills.
Nash and Nashville soils: 50 to 100 cm (20 to 40 in)to bedrock, and occur on adjacent low hills
Norge and Pond Creek soils: are more than 203 cm (80 in) to paralithic contact, and are on lower positions on the landform,

DRAINAGE AND PERMEABILITY:
Drainage: Well drained.
Permeability: Moderate permeability.
Saturated Hydraulic Conductivity: moderately low
Runoff: negligible on 0 to 1 percent slopes, low on 1 to 5 percent slopes, and medium on 5 to 20 percent slopes.

USE AND VEGETATION: Used for cropland. Some areas are in native grassland. Culivated crops: wheat and other small grains. Native vegetation: tall and mid grasses.

DISTRIBUTION AND EXTENT: Oklahoma and south-central Kansas. Land Resource Area H; MLRA 80A (Central Rolling Red Prairies). The series is extensive.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas

SERIES ESTABLISHED: Grant County, Oklahoma; 1931.

REMARKS: Major changes in the OSD were made by Walt Schaefer, as a result of the Soil Data Join Recorrelation Initiative (SDJR) in 06/2013.

Diagnostic horizons and features recognized in this pedon are:

Mollic epipedon - 0 to 41 cm (16 in). (Ap, A, and AB horizons)

Argillic horizon - 41 to 81 cm (16 to 32 in). (Bt horizon)

Paralithic contact - siltstone at a depth 150 cm (59 in). (Cr horizon)

ADDITIONAL DATA: Soil Survey Investigations Report No. 11, May 1967. Lab Nos. 5480-5487.

Taxonomic Version: Keys to Soil Taxonomy, Eleventh Edition, 2010


National Cooperative Soil Survey
U.S.A.