LOCATION BOLEY OKEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, active, nonacid, thermic Aquic Udifluvents
TYPICAL PEDON: Boley silt loam, in a slightly depressional forested area. (Colors are for moist soils unless otherwise stated).
A--0 to 15 centimeters (0 to 6 inches); brown (10YR 5/3) broken face, silt loam; moderate fine and medium granular structure; soft, very friable; slightly sticky, slightly plastic; many very fine and fine, common medium, few coarse roots throughout; few fine distinct strong brown (7.5YR 4/6) redoximorphic concentration masses; few concentrations of organic staining and leaf litter; slightly acid (6.2 H2O); abrupt smooth boundary. (13 to 38 centimeters (5 to 15 inches) thick)
C1--15 to 30 centimeters (6 to 12 inches); dark brown (10YR 3/3) broken face, silt loam; massive; soft, very friable; slightly sticky, slightly plastic; common very fine, fine, medium, and coarse roots throughout; few fine and medium dark yellowish brown (10YR 4/4) and brown (7.5YR 4/4) redoximorphic concentration masses; some faint organic staining; many thin faint bedding plains, moderately acid (6.0 H20); clear smooth boundary. (Combined thickness of the C horizons are 86 to 152 centimeters (34 to 60 inches) thick)
C2--30 to 56 centimeters (12 to 22 inches); dark yellowish brown (10YR 4/4) broken face, silt loam; massive; soft, very friable; slightly sticky, slightly plastic; few very fine, fine and few meduim and coarse roots throughout; few fine and medium faint brown (7.5YR 4/4) redoximorphic concentration masses; few fine distinct light brownish gray (10YR 6/2) redoximorphic depletion masses; many thin distinct bedding plains; moderately acid (6.0 H2O); abrupt smooth boundary.
C3--56 to 107 centimeters (22 to 42 inches); 30 percent very dark grayish brown (10YR 3/2) broken face, 30 percent dark brown (10YR 3/3) broken face, 40 percent brown (10YR 4/3) broken face, silt loam; massive; soft, very friable; slightly sticky, slightly plastic; very few very fine and very fine, very few medium and coarse roots throughout; common meduim distinct dark yellowish brown (10YR 4/6) redoximorphic concentration masses; many distinct bedding plains with colors and percent shown above; moderately acid (5.8 H2O); abrupt smooth boundary.
Ab--107 to 122 centimeters (42 to 48 inches); very dark grayish brown (10YR 3/2) broken face, silt loam; moderate fine and medium granular structure; hard, friable; slightly sticky, slightly plasitic; very few fine and fine roots throughout; common fine and medium distinct strong brown (7.5YR 4/6) redoximorphic concentration masses; moderately acid (5.9 H2O); clear smooth boundary. (0 to 30 centimeters (0 to 12 inches) thick)
ACb--122 to 145 centimeters (48 to 57 inches); very dark grayish brown (10YR 3/2) broken face, silty clay; weak medium subangular blocky structure; hard, firm; sticky, plastic; very few very fine and fine roots throughout; few fine distinct strong brown (7.5YR 4/6) and very pale brown (10YR 7/3) redoximorphic concentration masses; some faint bedding plains; neutral (6.7 H2O); abrupt smooth boundary. (0 to 30 centimeters (0 to 12 inches) thick)
Cb1--145 to 173 centimeters (57 to 68 inches); very dark gray (10YR 3/1) broken face, silty clay; massive; hard, firm; sticky, plastic; very few very fine and fine roots throughout; common fine distinct strong brown (7.5YR 4/6) redoximorphic concentration masses; few dark grayish brown (10YR4/2) bedding plains; slightly acid (7.4 H2O); abrupt smooth boundary. (0 to 51 centimeters (0 to 20 inches) thick)
Cb2--173 to 185 centimeters (68 to 73 inches); 40 percent dark grayish brown (10YR 4/2) broken face and 60 percent very dark gray (10YR 3/1) broken face, silty clay; massive; very hard, very firm; very sticky, very plastic; very few very fine roots throughout; common fine distinct strong brown (7.5YR 4/6) redoximorphic concentration masses; common thin faint bedding plains with colors and percent shown above; neutral (7.0 H2O); abrupt smooth boundary. (0 to 51 centimeters (0 to 20 inches) thick)
Cb3--185 to 224 centimeters (73 to 88 inches); weak red (2.5YR 5/2) broken face, silty clay loam; massive; soft, friable; slightly sticky, slighty plastic; very few very fine roots throughout; many fine and common medium strong brown (7.5YR 4/6) redoximorphic concentration masses; common thin bedding plains; slightly alkaline (7.4 H2O).
TYPE LOCATION: Okfuskee County, Oklahoma; about 762 meters (2,500 feet) west and 335 meters (1,100 feet) south of the northeast corner of Sec. 16, T10N, R 12E.
RANGE IN CHARACTERISTICS:
A horizon:
Hue: 7.5YR or 10YR
Value: 4 to 6
Chroma: 1 to 3
Texture: silt loam or silty clay loam
Reaction: slightly acid to moderately alkaline
Redoximorphic concentration masses along pore linings or root channels: none to few fine distinct
Clay content: 18 to 35 percent
C horizon:
Hue: 7.5YR or 10YR
Value: 3 to 6
Chroma: 1 to 4
Texture: silt loam or silty clay loam with few to many thin bedding plains with texture of loamy fine sand, very fine sandy loam, loam, silt loam or silty clay loam
Reaction: moderately acid to moderately alkaline
Redoximorphic concentration masses are along pore linings or root channels: few to many fine faint or distinct
Redoximorphic depletion masses are along pore linings or root channels: none to few fine faint or distinct
Clay content: 18 to 35 percent
Ab horizon:
Hue: 7.5YR or 10YR
Value: 3 or 4
Chroma: 2 or 3
Texture: silt loam or silty clay loam
Reaction: moderately acid to moderately alkaline
Redoximorphic concentration masses along pore linings or root channels: few to many fine and medium faint or distinct
Redoximorphic depletion masses along pore linings or root channels: none to few fine faint or distinct
Clay content: 18 to 40 percent
ACb horizon:
Hue: 7.5YR or 10YR
Value: 3 or 4
Chroma: 2 or 3
Texture: silt loam, silty clay loam, or silty clay
Reaction: moderately acid to moderately alkaline
Thin faint bedding plains: few to common
Clay content: 18 to 40 percent
Cb horizon:
Hue: 7.5YR, 10YR or 2.5Y
Value: 3 to 6
Chroma: 1 to 4
Texture: silty clay, silty clay loam, or silt loam with few to many bedding plains of fine sandy loam, very fine sandy loam, loamy sand, or fine sand
Some pedons have thick strata of sand below 152 centimeters (60 inches).
Some pedons lack buried horizons.
Average clay content: 18 to 45 percent
COMPETING SERIES: This is the
Lassiter series.
Lassiter soils have buried Bt horizons and are warmer for longer periods of time.
GEOGRAPHIC SETTING:
Landform: nearly level to slightly concave flood plains of the Cherokee Prairies (MLRA 112)
Slope: 0 to 1 percent
Parent material: stratified loamy and clayey alluvial sediments of recent age
Mean annual precipitation: 97 to 112 centimeters (38 to 44 inches)
Mean annual temperature: 15 to 17 degrees C. (59 to 63 degrees F.)
Thornthwaite annual P-E indices: more than 64
Frost free days: 200 to 225
Elevation: 152 to 305 meters (500 to 1000 feet)
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Mason,
Norwood,
Oklared,
Roebuck,
Severn and
Wynona soils.
Mason soils have a mollic epipedon, have a argillic horizon, are well drained, and occur on higher flood plains.
Norwood soils are calcareous, well drained, and occur on higher flood plains.
Oklared soils have a coarse-loamy control section, are calcareous, are well drained, and occur on higher flood plains.
Roebuck soils have a mollic epipedon, more than 35 percent clay content in the control section, and occurs on similar areas.
Severn soils have less than 18 percent clay content in the control section, are well drained, are calcareous, and occur on higher flood plains.
Wynona soils have a mollic epipedon and occur on higher flood plains.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: poorly drained
Runoff: very high
Saturated hydraulic conductivity: moderately high
Flucuating perched water table: 30 to 122 centimeters (1 to 4 feet) mainly during the winter and spring months and generally no water table above 203 centimeters (80 inches) during the summer and fall
Pond water frequently on the surface for brief to long periods during the winter and spring
Flooding: frequently flooded for very brief or brief periods
USE AND VEGETATION: Boley soils are used for native range, forest or wildlife. Native vegetation is bottomland hardwoods with an under story of tall grasses.
DISTRIBUTION AND EXTENT: Boley soils are not extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Okfuskee County, Oklahoma, 1996.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Aquic: redoximorphic depletions with a chroma of 2 or less within 50cm (20 inches)of the mineral soil surface and aquic conditions for some time in most years
Moisture regime: udic
Ochric epipedon: 0 to 15 centimeters (0 to 6 inches) (A horizon)
Particle-size control section: base of the Ap horizon or 25 to 102 centimeters (10 to 40 inches)
Irregular distribution of organic matter: 25 to 76 centimeters (10 and 30 inches)
Soil Interpretation Record: Series OK0362
Modified format by LRM in 1/2006 to include metric conversion and change permeability to saturated hydraulic conductivity.