LOCATION BRAMAN OKEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, superactive, thermic Pachic Argiustolls
TYPICAL PEDON: Braman silt loam--cultivated. (Colors are for dry soil unless otherwise stated.)
Ap--0 to 8 inches; dark brown (7.5YR 4/2) silt loam, very dark brown (7.5YR 3/2) moist; weak fine granular structure; hard, friable; common fine roots; common worm casts; few coarse and common fine tubular pores with low vertical continuity; slightly acid (pH 6.5); clear smooth boundary. (7 to 10 inches thick)
A--8 to 12 inches; dark brown (7.5YR 4/2) silt loam, very dark brown (7.5YR 3/2) moist; moderate fine and medium granular structure; hard, friable; common fine roots; common worm casts; common fine tubular pores with low vertical continuity; slightly acid (pH 6.5); clear smooth boundary. (0 to 11 inches thick)
Bt1--12 to 23 inches; reddish brown (5YR 4/3) silty clay loam, dark reddish brown (5YR 3/3) moist; moderate fine and very fine subangular blocky structure; hard, firm; few fine roots; common worm casts; few fine and common very fine tubular pores with low vertical continuity; common distinct clay films on faces of peds; neutral (pH 7.0); gradual smooth boundary. (6 to 12 inches thick)
Bt2--23 to 36 inches; reddish brown (5YR 4/4) silty clay loam, dark reddish brown (5YR 3/4) moist; moderate fine prismatic structure parting to moderate very fine subangular blocky; hard, friable; few worm casts; few fine and common very fine tubular pores with low vertical continuity; few distinct clay films on faces of peds; neutral (pH 7.0); gradual smooth boundary. (6 to 22 inches thick)
BC--36 to 48 inches; reddish brown (5YR 5/4) silt loam, reddish brown (5YR 4/4) moist; weak medium prismatic structure parting to weak fine subangular blocky; hard, very friable; moderately alkaline (pH 8.0); gradual smooth boundary. (0 to 22 inches thick)
C--48 to 80 inches; stratified reddish brown (5YR 4/4) silty clay and reddish brown (5YR 5/4) loam, reddish brown (5YR 3/4) and reddish brown (5YR 4/4) moist; massive; very hard, very firm, and hard, friable; moderately alkaline (pH 8.0).
TYPE LOCATION: Noble County, Oklahoma; about 3 miles west and 2 miles north of Marland, 1000 ft south and 1700 ft east of the northwest corner, section 4, T. 24 N., R. 1 E.
RANGE IN CHARACTERISTICS: The thickness of the solum is greater than 60 inches. Thickness of the mollic epipedon ranges from 20 to 31 inches.
The Ap horizon has hue of 5YR or 7.5YR, value of 4, and chroma of 2. Reaction ranges from moderately acid to neutral.
The A horizon has hue of 5YR or 7.5YR, value of 4, and chroma of 2. Reaction ranges from moderately acid to neutral.
The Bt1 horizon has hue of 5YR, value of 4, and chroma of 2 or 3. Reaction ranges from moderately acid to mildly alkaline.
The Bt2 horizon has hue of 5YR, value of 4 or 5, and chroma of 3 or 4. Texture is silty clay loam or silt loam. If the texture is silt loam, the clay percentage is more than 25 percent. Reaction ranges from neutral to moderately alkaline.
The Bt3 horizon has hue of 5YR, value of 4 or 5, and chroma of 4. Reaction ranges from mildly alkaline to moderately alkaline.
The BC horizon has hue of 5YR, value of 5, and chroma of 4 or 6. Texture is very fine sandy loam, or silt loam. Reaction ranges from mildly alkaline to moderately alkaline.
The C horizon has hue of 5YR, value of 4 to 6, and chroma of 4 or 6. Texture is stratified very fine sandy loam, silt loam, loam, and silty clay. Some pedons have a buried dark reddish brown 5YR 4/4 silty clay layer below the C horizon.
COMPETING SERIES: These are the Corbin, Irene, Lawrie, Pond Creek, St. Paul, and Westview series. Corbin and Pond Creek soils are on uplands. Corbin soils have hues of 7.5YR or 10YR in the argillic horizon, and over 35 percent clay in the lower argillic horizon. Irene, St. Paul, and Westview soils are on uplands in the Central Rolling Red plains (MLRA 78C); these soils have P-E indices of 44 or less and have secondary carbonates within 40 inches of the surface. Lawrie soils developed in Recent sediments on flood plains of minor streams.
GEOGRAPHIC SETTING: Braman soils are on nearly level flood plains in the Central Rolling Red Prairies (MLRA 80A). The soil formed in calcareous loamy alluvium of Pleistocene age. Mean annual temperature ranges from 57 to 61 degrees F. The mean annual precipitation is 30 to 36 inches. Thornthwaite annual P-E indices range from 48 to 60.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Brewer, Dale, Keokuk, Lela, McLain, Miller, Port, and Reinach series. Brewer, Dale, Lela, and McLain soils are on similar levels on the flood plain. Brewer, Lela, and McLain soils have a fine control section. Dale soils lack argillic horizons. Keokuk, Miller, Port, and Reinach soils are on lower flood plains nearer the stream. Keokuk and Reinach soils have a coarse-silty control section and Keokuk soils have a mollic epipedon less than 20 inches thick. Miller and Port soils do not have argillic horizons, and Miller soils have a fine control section.
DRAINAGE AND PERMEABILITY: Well drained; slow runoff; moderately slowly permeable.
USE AND VEGETATION: The principal use is for cropland. The principal crops are wheat, grain sorghum, and alfalfa. Small areas are used for tame pasture or range. Native vegetation is tall prairie grasses with scattered bottomland hardwood trees.
DISTRIBUTION AND EXTENT: Central Rolling Red Prairies of Oklahoma (MLRA 80A). The series is of small extent.
MLRA OFFICE RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Noble County, Oklahoma; 1994.
REMARKS: Braman soils were formerly included in the Port series in the earlier soil survey of Noble County, Oklahoma, and in the McLain series in the soil survey of Kay County, Oklahoma.
Diagnostic horizons and features:
Mollic Epipedon - the zone from the surface to 23 inches (A horizon). Argillic horizon - the zone from 12 to 36 inches (Bt horizon).
Soil Interpretation Record: OK0391 Braman Series