LOCATION LEBRON OKEstablished Series
TAXONOMIC CLASS: Clayey over sandy or sandy-skeletal, mixed, superactive, thermic Fluvaquentic Hapludolls
TYPICAL PEDON: Lebron clay--pastureland. (Colors are for dry soil unless otherwise stated.)
A--0 to 5 inches; reddish gray (5YR 5/2) clay, dark reddish brown (5YR 3/2) moist; weak coarse prismatic structure parting to weak coarse subangular blocky; extremely hard, extremely firm; many very fine roots, common fine roots, and few medium roots; very fine moderate constricted tubular pores; few fine prominent gray (10YR 6/1) masses of iron depletions; common brown (7.5YR 4/4) rhizospheres; strongly effervescent; moderately alkaline; abrupt smooth boundary. (4 to 12 inches thick)
Ad--5 to 9 inches; reddish gray (5YR 5/2) silty clay, dark reddish brown (5YR 3/2) moist; weak medium prismatic structure parting to moderate fine blocky; extremely hard, extremely firm; many very fine roots and few fine and medium roots; common very fine moderate constricted tubular pores; few fine prominent gray (10YR 6/1) masses of iron depletions; common brown (7.5YR 4/4) rhizospheres; strongly effervescent; moderately alkaline; clear smooth boundary. (0 to 5 inches thick)
A1--9 to 14 inches; reddish gray (5YR 5/2) clay, dark reddish brown (5YR 3/2) moist; weak medium prismatic structure parting to moderate fine blocky; extremely hard, extremely firm; many very fine roots; common very fine constricted tubular pores; few fine prominent gray (10YR 6/1) masses of iron depletions; common brown (7.5YR 4/4) rhizospheres; strongly effervescent; moderately alkaline; clear smooth boundary. (0 to 5 inches thick)
C1--14 to 18 inches; reddish brown (5YR 5/3) silty clay loam, dark reddish brown (5YR 3/3) moist; massive; very hard, very firm; many very fine fine roots; common distinct strata of loamy fine sand and finer materials 1/8" to 2" thick; many very few moderate constricted tubular pores; violently effervescent; moderately alkaline; abrupt wavy boundary. (7 to 29 inches thick)
C2--18 to 28 inches; light reddish brown (5YR 6/4) silt loam, reddish brown (5YR 4/4) moist; massive; hard; firm; many very fine roots; common prominent strata of fine sandy loam and finer materials 1/8 to 6 inches thick; common very fine moderate constricted pores; violently effervescent; moderately alkaline; abrupt wavy boundary. (0 to 15 inches thick)
2C--28 to 80 inches; light reddish brown (5YR 6/4) loamy fine sand, reddish brown (5YR 5/4) moist; single grained; soft, very friable; common prominent strata of fine sand, sand, silty clay loam, and silt loam 1/8 to 6 inches thick and 3 to 12 inches apart; strongly effervescent; moderately alkaline. (20 to 51 inches thick).
TYPE LOCATION: Logan County, Oklahoma; 3800 feet east and 1200 feet south of the northwest corner of sec. 9, T. 17N., R. 2 W.
RANGE IN CHARACTERISTICS: Typically this soil is slightly alkaline to moderately alkaline and calcareous throughout.
The A horizon has hue of 7.5YR or 5YR, value of 4 or 5, and chroma of 2 to 4. Texture is clay loam, silty clay loam, silty clay, or clay. Redox concentrations and depletions are observable in this layer due to the long duration of ponding. Reaction ranges from slightly alkaline to moderately alkaline and most pedons are calcareous.
The C1 horizon has hue of 7.5YR or 5YR, value of 4 or 5, and chroma of 2 to 4. Texture is stratified silty clay, clay, clay loam, silt loam, or silty clay loam. Redox concentrations and depletions are observable in this layer. Reaction ranges from slightly alkaline to moderately alkaline and is calcareous.
The C2 horizon has hue of 7.5YR or 5YR, value of 4 to 7, and chroma of 4 to 6. Texture is stratified loamy fine sand, fine sand, or sand. Reaction is moderately alkaline and is calcareous.
The 2C horizon has hue of 7.5YR or 5YR, value of 5 to 8, and chroma of 4 or 6. Texture is stratified loamy fine sand, fine sand, or sand. Reaction is moderately alkaline and is calcareous.
COMPETING SERIES: There are no competing series in this family. Soils in similar families are Harjo and Miller. Harjo and Miller soils do not have a strongly contrasting particle size class in the control section.
GEOGRAPHIC SETTING: Lebron soils are on nearly level flood plains of major drains and their tributaries of the Central Rolling Red Prairies (MLRA-80A). They formed in clayey alluvial sediments which have been deposited over stratified sandy alluvial sediments in depressional areas. Slopes range from 0 to 1 percent. Mean Annual Precipitation: 26 to 40 inches. Mean Annual Temperature: 58 to 64 degrees F. Thornthwaite Annual P-E indices: 44 to 64. Frost free days: 200 to 230. Elevation: 700 to 1300 feet.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gaddy, Goodnight, and Yahola series. Gaddy soils are usually closer to the drain. Goodnight soils are on dunes. Yahola soils are on slightly higher positions.
DRAINAGE AND PERMEABILITY: very poorly drained; high runoff, very slowly permeable. This soil is frequently ponded for long durations, october through June. This soil is occasionally flooded for very brief periods, March through October. This soil has endosaturation (apparent watertable) from 20 to 40 inches from October through June.
USE AND VEGETATION: The principle use is for cropland or improved rangeland. The main crop is wheat. Bermudagrass is the dominate species and cottonwood, buffalo bur, cocklebur, and smartweed are the primary invaders.
DISTRIBUTION AND EXTENT: Central Rolling Red Prairies of Oklahoma and possibly Kansas and Texas. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Logan County, Oklahoma; 1992.
REMARKS: These soils were formerly mapped as Harjo and Miller.
Diagnostic horizons and features associated with this pedon are:
Mollic Epipedon - the zone from the soil surface to a depth of 14 inches (the A horizons).
Calcareous - calcareous throught.
Soil Interpretation Record: OK0388 Lebron Series