LOCATION ABBIE OKEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, thermic Aridic Argiustolls
TYPICAL PEDON: Abbie loam, rangeland. (Colors are for dry soil unless otherwise stated.)
A--0 to 11 inches; brown (7.5YR 4/2) loam, dark brown (7.5YR 3/2) moist; weak medium subangular blocky structure parting to moderate fine subangular blocky; slightly hard, friable; many fine and few medium roots; common worm casts; coarse fragments less than 76mm in diameter make up about 1 percent by volume; neutral; clear smooth boundary. (2 to 18 inches thick)
Bt1--11 to 24 inches; reddish brown (5YR 4/4) clay loam, dark reddish brown (5YR 3/4) moist; moderate medium prismatic structure parting to moderate medium subangular blocky; hard, firm; common fine roots; common faint clay films on faces of peds; coarse fragments less than 76mm in diameter make up about 1 percent by volume; slightly alkaline; clear smooth boundary. (10 to 26 inches thick)
Btk--24 to 35 inches; reddish brown (5YR 5/4) loam, reddish brown (5YR 4/4) moist; moderate medium prismatic structure parting to moderate medium subangular blocky; hard, firm; common fine roots; common faint clay films on faces of peds; coarse fragments less than 76mm in diameter make up about 2 percent by volume; few threads of calcium carbonate in old root channels, common films of calcium carbonate between peds, pendants of calcium carbonate on under side of coarse fragments; slightly effervescent; slightly alkaline; clear smooth boundary. (9 to 38 inches thick)
BCk--35 to 43 inches; yellowish red (5YR 5/6) loam, yellowish red (5YR 4/6) moist; weak coarse prismatic structure; slightly hard, friable; few fine roots; coarse fragments less than 76mm in diameter make up about 4 percent by volume; few medium iron concretions; common fine threads and films of calcium carbonate, pendants of calcium carbonate on under side of coarse fragments; violently effervescent; moderately alkaline; clear smooth boundary. (5 to 14 inches thick)
C--43 to 80 inches; reddish yellow (5YR 6/6) sandy loam, yellowish red (5YR 5/6) moist; few medium distinct yellowish brown (10YR 5/6) relic redoximorphic accumulation masses; massive; slightly hard, friable; few very fine roots; coarse fragments less than 76mm in diameter make up about 12 percent by volume; few fine and medium iron concretions; few fine concretions of calcium carbonate; violently effervescent; moderately alkaline.
TYPE LOCATION: Woods County, Oklahoma; about 25 miles west and 10 miles north of Alva, Oklahoma; about 2375 feet north and 1200 feet west of the southeast corner of Sec. 35, T. 29 N., R. 18 W.
RANGE IN CHARACTERISTICS: The solum thickness ranges from 40 to 60 inches. Depth to secondary carbonates ranges from 7 to 30 inches. Thickness of the mollic epipedon ranges from 10 to 20 inches.
The A horizon has hue of 5YR through 10YR, value of 4 or 5 (3 moist), and chroma of 2 or 3. Texture is loam, clay loam, or fine sandy loam and clay content ranges from 10 to 30 percent. Coarse rounded fragments less than 76mm in diameter range from 0 to 5 percent by volume. Reaction ranges from neutral to moderately alkaline.
The Bt horizon has hue of 2.5YR through 10YR, value of 4 or 5 (3 or 4 moist), and chroma of 3 or 4. Texture is loam or clay loam, and clay content ranges from 20 to 35 percent. Coarse rounded fragments less than 76mm in diameter range from 0 to 5 percent by volume. Reaction is slightly or moderately alkaline.
The Btk horizon has hue of 5YR or 7.5YR, value of 4 or 6 (3 or 4 moist), and chroma of 4 or 6. Texture is loam, clay loam, or sandy clay loam, and the clay content ranges from 18 to 35 percent. Coarse rounded fragments less than 76mm in diameter range from 0 to 5 percent by volume. Reaction is slightly or moderately alkaline. Visible calcium carbonate in the form of films and threads ranges from 1 to 5 percent by volume and calcium carbonate equivalent is less than 15 percent.
The BCk horizon has hue of 5YR or 7.5YR, value of 5 or 6 (4 or 5 moist), and chroma of 4 or 6. Texture is loam, sandy loam, clay loam, or sandy clay loam, and the clay content ranges from 10 to 30 percent. Coarse rounded fragments less than 76mm in diameter range from 0 to 5 percent by volume. Reaction is slightly or moderately alkaline. Visible calcium carbonate in the form of films, threads, and soft masses ranges from 1 to 10 percent by volume and calcium carbonate equivalent is less than 15 percent. Some pedons lack BCk horizons.
The C horizon has hue of 5YR or 7.5YR, value of 5 through 8 (4 through 7 moist), and chroma of 2 through 6. Some pedons have relic redoximorphic accumulations in shades of brown. Texture is loam, sandy loam, clay loam, or sandy clay loam, and the clay content ranges from 5 to 30 percent. Coarse rounded fragments less than 76mm in diameter range from 0 to 15 percent by volume.
COMPETING SERIES: This is the Arizer series in the same family. Arizer soils have a calcic horizon below 35 inches.
GEOGRAPHIC SETTING: Abbie soils are on nearly level to sloping summits and shoulder slopes of uplands in the Southern High Plains Breaks. Slope gradients are typically less than 5 percent but range from 1 to 8 percent. The Abbie soils formed in calcareous old alluvium. Mean annual precipitation ranges from about 20 to 24 inches. Mean annual temperature ranges from 57 to 61 degrees F. Thornthwaite annual P-E index ranges from 32 to 38. Frost free days range from 185 to 210.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Farry, Fortyone, Irene, Mansic, Oklark, and Woods. Farry, Fortyone, and Irene soils occur on similar landscapes as the Abbie soils. Mansic, Oklark, and Woods occur on lower side slopes. Fortyone soils have a coarse-loamy textural control section and lack a mollic epipedon. Irene soils have a fine-silty textural control section and a mollic epipedon more than 20 inches thick. Mansic, and Oklark soils lack an argillic horizon and contain a calcic horizon. Farry soils contain less clay in the argillic horizon. Woods soils have a fine textural control section.
DRAINAGE AND PERMEABILITY: Abbie soils are well drained. Runoff is negligible to medium and permeability is moderate to moderately slow.
USE AND VEGETATION: Abbie soils are used mainly for rangeland, but some areas are cultivated with wheat and sorghums being the principal crops. Native vegetation is mid and tall grasses.
DISTRIBUTION AND EXTENT: The Southern High Plains Breaks (MLRA 77E) areas of Oklahoma, Kansas, and Texas. The series is of minor extent.
MLRA OFFICE RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Woods County, Oklahoma; 1995.
REMARKS: Soil Interpretation Record: OK0338.
These soils were formerly included in the Abilene series in the earlier soil survey of Woods County, Oklahoma; 1939 series.
Diagnostic horizons recognized in this pedon. Mollic epipedon - The zone from the surface to a depth of 11 inches. (A horizon) Argillic horizon - The zone from 11 inches to 35 inches. (Bt and Btk horizons)
Moisture regime: Aridic-Ustic.