LOCATION GRANT                   OK+KS

Established Series
Rev. GFS:AMS:JLD
08/2017

GRANT SERIES

The Grant series consist of deep, well drained, moderately permeable soils. They 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 in the Central Rolling Red Prairies (MLRA 80A). Slope ranges from 0 to 20 percent. Mean annual precipitation is 813 mm (32 in) 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, at an elevation of 397 m (1310 ft). (Colors are for dry soil unless otherwise stated.)

Ap--0 to 18 cm (0 to 7 in); 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.

A--18 to 30 cm (7 to 12 in); 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. (Combined thickness of the A horizon is 10 to 50 cm [4 to 25 inches])

BA--30 to 41 cm (12 to 16 in); 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. (Thickness of the BA horizon is 0 to 33 cm [0 to 13 inches])

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

BC--81 to 119 cm (32 to 47 in); 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. (Thickness of the BC horizon is 0 to 76 cm [0 to 30 inches])

C--119 to 150 cm (47 to 59 in); 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; strongly effervescent; moderately alkaline; clear smooth boundary. (Thickness of the C horizon is 0 to 76 cm (0 to 30 in))

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

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.

USGS Topographic Quadrangle: Jet SE, OK
Latitude: 36 degrees, 36 minutes, 31.56 seconds N
Longitude: 98 degrees, 06 minutes, 13.68 seconds W

Decimal Degrees:
Latitude: 36.5921 degrees
Longitude: -98.1038 degrees
Datum: WGS 84

UTM Easting: 580165.2 m
UTM Northing: 4049998 m
UTM Zone: 14N

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

Particle-size control section:
Clay content: 18 to 35 percent
Sand content: 0 to 15 percent

A and Ap horizons:
Hue: 5YR to 10YR
Value: 2 or 3 moist, 4 or 5 dry
Chroma: 2 or 3 moist or dry
Texture: very fine sandy loam, silt loam, or loam
Effervescence: none to slight
Reaction: slightly acid to slightly alkaline

BA horizon:
Hue: 2.5YR to 7.5YR
Value: 2 or 3 moist, 4 or 5 dry
Chroma: 2 to 4 moist or dry
Texture: very fine sandy loam, silt loam, or loam
Effervescence: none to slight
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: very fine sandy loam, silt loam, loam, silty clay loam, or clay loam
Clay content: 22 to 28 percent, but ranges from 18 to 35 percent
Sand content: less than 15 percent fine sand and coarser sand
Effervescence: slight to strong
Reaction: slightly acid to moderately alkaline

BC horizon:
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
Effervescence: none to strong
Reaction: neutral to moderately alkaline

C horizon:
Hue: 2.5YR or 5YR
Value: 4 to 7 moist, 5 to 8 dry
Chroma of 4 to 8 moist or dry
Texture: very fine sandy loam, silt loam, or loam
Fragments: amount-0 to 20 percent by volume; size-5 to 30 mm; kind-sandstone
Effervescence: slight to strong
Reaction: slightly alkaline or moderately alkaline

Cr horizon
Paralithic contact: siltstone or silty shale; the material is dense enough to be root restrictive
Fractures: are greater than 10 cm (4 in) apart
Excavation difficulty: low to moderate
Cementation: slakes in water in less than 15 hours
Other features: calcareous in some pedons

COMPETING SERIES: This is the Vanoss series in the same family.
Vanoss soils: solum is more than 152 cm (60 in) to bedrock

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

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

DRAINAGE AND PERMEABILITY:
Drainage: well
Permeability: moderate
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. Cultivated crops are wheat and other small grains. Native vegetation is tall and mid grasses.

DISTRIBUTION AND EXTENT:
General area: Oklahoma and south-central Kansas
Land Resource Region: H-Central Great Plains Winter Wheat and Range
MLRA 80A-Central Rolling Red Prairies
Extent: large

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 (0 to 16 in) (Ap, A, and BA 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)

Edited 08/2017 (JAD-JLD) Changed to tabular format. Updated pedon description, range in characteristics, and other sections.

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

TAXONOMIC VERSION: Keys to Soil Taxonomy, Twelfth Edition, 2014

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National Cooperative Soil Survey
U.S.A.