LOCATION OKEETEE SC+AL VAEstablished Series
TAXONOMIC CLASS: Fine, mixed, semiactive, thermic Aeric Endoaqualfs
TYPICAL PEDON: Okeetee fine sandy loam--forested. (Colors are for moist soil, unless otherwise indicated.)
A--0 to 5 inches; dark gray (10YR 4/1) fine sandy loam; gray (10YR 6/1) dry; moderate medium granular structure; very friable; many fine and medium roots; very strongly acid; clear wavy boundary. (3 to 5 inches thick)
E--5 to 7 inches; light brownish gray (2.5Y 6/2) fine sandy loam; weak medium subangular blocky structure; very friable; many fine roots; many fine pores; common medium faint light yellowish brown (2.5Y 6/4) and grayish brown (10YR 5/2) iron depletions; very strongly acid; clear wavy boundary. (0 to 6 inches thick)
Bt--7 to 11 inches; pale brown (10YR 6/3) clay loam; weak medium subangular blocky structure; friable; slightly plastic, sticky; common fine roots; few fine pores; few distinct clay films; thin coatings of light brownish gray fine sandy loam from above horizon on surfaces of some peds; many medium distinct strong brown (7.5YR 5/6) and common fine prominent red (2.5YR 5/6) masses of oxidized iron and common medium faint light brownish gray (10YR 6/2) iron depletions; very strongly acid; clear wavy boundary. (3 to 8 inches thick)
Btg1--11 to 18 inches; light brownish gray (10YR 6/2) clay; moderate medium subangular blocky structure; very firm, very sticky, very plastic; common distinct clay films on faces of peds; few fine roots; many medium distinct yellowish brown (10YR 5/4) and common medium distinct strong brown (7.5YR 5/8) and common fine prominent yellowish red (5YR 5/8) masses of oxidized iron in the matrix; very strongly acid; gradual wavy boundary. (3 to 18 inches thick)
Btg2--18 to 50 inches; gray (10YR 6/1) clay; moderate medium subangular blocky structure; very firm, very sticky, very plastic; few distinct clay films on faces of peds; few fine roots; many medium distinct yellowish brown (10YR 5/6) and common medium distinct strong brown (7.5YR 5/8) and yellowish red (5YR 5/8) masses of oxidized iron; few fine flakes of mica; strongly acid; clear wavy boundary. (10 to 32 inches thick)
BCg--50 to 78 inches; light brownish gray (2.5Y 6/2) sandy clay loam with pockets of sandy loam and loamy sand; massive; very friable; many coarse prominent yellowish red (5YR 5/8) masses of oxidized iron; common fine flakes of mica; slightly acid; clear wavy boundary. (0 to 35 inches thick)
C--78 to 85 inches; light yellowish brown (2.5Y 6/4) fine sandy loam with pockets of sandy clay loam and loamy sand; massive; very friable; many coarse prominent yellowish red (5YR 5/8) masses of oxidized iron and common medium faint light brownish gray (2.5Y 6/2) iron depletions; common fine flakes of mica; slightly acid.
TYPE LOCATION: Jasper County, South Carolina; about 10.3 miles south-southeast of Ridgeland, 3900 feet south of I-95 bridges across south fork of one Mile Swamp, 240 feet east of US-17 and 300 feet west of I-95 retaining fence.
RANGE IN CHARACTERISTICS:
Depth to top of the Argillic horizon: 3 to 11 inches
Depth to the base of the Argillic horizon: 40 to more than 80 inches
Depth to Contrasting Soil Material (lithologic discontinuity): 40 to more than 80 inches
Soil Reaction: Extremely acid to slightly acid in the A, E, and upper part of the B horizon, strongly acid to moderately alkaline in the lower part of the B horizon, and moderately acid to moderately alkaline in the C horizon
Depth to Bedrock: Greater than 80 inches
Depth to Seasonal High Water Table: 0.5 to 1 foot
Rock Fragment Content: 0 to 5 percent, by volume throughout mostly quartz pebbles of shale fragments
Mica Content: 0 to 20 percent, by volume mica flakes in the B and C horizons
Other Features: Some pedons have as much as 85 percent shell fragments in the C or Cg horizon.
RANGE OF INDIVIDUAL HORIZONS:
A horizon or Ap horizon (where present):
Color--hue of 10YR, value of 3 to 5, chroma of 1 or 2
Texture--loam, fine sandy loam, sandy loam, loamy fine sand, or loamy sand
Redoximorphic features (where present)--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
E horizon:
Color--hue of 10YR to 5Y, value of 5 to 7, chroma of 1 to 4
Texture--loam, fine sandy loam, sandy loam, loamy fine sand, or loamy sand
Redoximorphic features (where present)--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
Eg horizon (where present):
Color--hue of 10YR to 5Y, value of 5 to 7, chroma of 1 or 2
Texture--loam, fine sandy loam, sandy loam, loamy fine sand, or loamy sand
Redoximorphic features (where present)--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
Bt horizon:
Color--hue of 10YR or 2.5Y, value of 5 or 6, chroma of 3 to 8
Texture--sandy clay loam or clay loam
Redoximorphic features (where present)--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
Btg horizon:
Color--hue of 10YR to 5Y, value of 5 to 7, chroma of 1 or 2
Texture--clay loam, sandy clay, or clay
Redoximorphic features--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
Lower Bt horizon (where present):
Color--hue of 10YR or 2.5Y, value of 4 or 5, chroma of 3 to 6
Texture--clay or sandy clay
Redoximorphic features--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
BCg horizon or BCtg horizon (where present):
Color--hue of 10YR to 5Y, value of 6 or 7, chroma of 1 or 2
Texture--sandy clay, clay loam, or sandy clay loam commonly with pockets of sandy loam or loamy sand
Redoximorphic features--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
BC horizon (where present):
Color--hue of 10YR or 2.5Y, value of 4 or 5, chroma of 3 to 6, with many gray mottles. Greenish mottles are in some pedons. The BCg horizon is
Texture--sandy clay, clay loam, or sandy clay loam commonly with pockets of sandy loam or loamy sand
Redoximorphic features--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
Cg horizon (where present):
Color--hue of 10YR to 5Y, value of 4 to 6, and chroma of 1 or 2, or is neutral with value of 4 to 8
Texture--sandy loam, fine sandy loam, loam, sandy clay loam, clay loam, or sandy clay, including thin layers or pockets of coarser and finer textured material.
Redoximorphic features--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
C horizon:
Color--hue of 10YR to 5Y, value of 4 to 6, chroma of 3 to 6
Texture--sandy loam, fine sandy loam, loam, sandy clay loam, clay loam, or sandy clay, including thin layers or pockets of coarser and finer textured material.
Redoximorphic features--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
2Cg horizon (where present):
Color--hue of 10YR to 5Y, value of 4 to 6, and chroma of 1 or 2, or is neutral with value of 4 to 8
Texture--coarse sand, sand, fine sand, loamy coarse sand, or loamy sand, including thin layers or pockets of coarser and finer textured material.
Redoximorphic features--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
2C horizon:
Color--hue of 10YR to 5Y, value of 4 to 6, chroma of 3 to 6
Texture--coarse sand, sand, fine sand, loamy coarse sand, or loamy sand, including thin layers or pockets of coarser and finer textured material.
Redoximorphic features--iron depletions in shades of brown, yellow, olive, or gray and masses of oxidized iron in shades of red, yellow, or brown
COMPETING SERIES: None
GEOGRAPHIC SETTING:
Landscape: Lower and middle coastal plains, river valleys
Landform: Marine terrace, stream terraces
Geomorphic Component: Flats, depressions, treads
Hillslope Profile Position: Summits
Parent Material: Marine deposits, fluviomarine deposits, alluvium
Slope: 0 to 2 percent
Elevation: 5 to 250 feet
Frost Free Period: 195 to 280 days
Mean Annual Air Temperature: 57 to 70 degrees F.
Mean Annual Precipitation: 35 to 55 inches
GEOGRAPHICALLY ASSOCIATED SOILS:
Argent soils--are poorly or very poorly drained, on lower lying landforms
Bayboro soils--have a thicker dark-colored surface and are very poorly drained, on lower lying landforms
Bladen soils--have lower base saturation have and an abrupt texture change, on similar landforms
Craven soils--are moderately well drained, on higher lying landforms
Eulonia soils--are medium-textured and are moderately well drained, on higher landforms
Johns soils--are medium-textured, underlain by sandy materials and are somewhat poorly or moderately well drained, on higher landforms
Kalmia soils--are medium-textured, underlain by sandy materials and are well drained, on higher landforms
Lenoir soils--have lower base saturation and are somewhat poorly drained, on higher landforms
Meggett soils--have an abrupt texture change, on similar landforms
Nemours soils--have lower base saturation and are moderately well drained, on higher landforms
Pooler soils--have lower base saturation, on similar landforms
Santee soils--have a thicker dark-colored surface and are very poorly drained, on lower lying landforms
State soils--are medium-textured and are well drained, on higher landforms
Stono soils--are medium-textured, underlain by sandy materials and are very poorly drained, on lower landforms
DRAINAGE AND PERMEABILITY:
Depth Class: Very deep
Drainage Class (Agricultural): Somewhat poorly drained
Internal Free Water Occurrence: Very shallow or shallow, common, thick
Flooding Frequency and Duration: None, very rare, rare for very brief to long periods
Ponding Frequency and Duration: None
Index Surface Runoff: Negligible
Permeability: Slow (Saturated Hydraulic Conductivity: Moderately low
Shrink-Swell Potential: Moderate
USE AND VEGETATION:
Major Uses: Mostly woodland
Dominant Vegetation: Where cultivated--pasture or cropped to corn, soybeans, or small grain. Where wooded--loblolly, longleaf, and slash pine, oaks, hickory, and sweetgum.
DISTRIBUTION AND EXTENT:
Distribution: Atlantic Coastal Plain of South Carolina, Georgia, North Carolina, and Virginia.
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Jasper County, South Carolina; 1975.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon--the zone from the surface of the soil to 7 inches (A and E horizons)
Argillic horizon--the zone from 7 to 50 inches (Bt, Btg1 and Btg2 horizons)
Aquic conditions--periodic saturation and reduction in a zone from 11 to 85 inches at some time during the year (endosaturation)
ADDITIONAL DATA:
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation SC0002 OKEETEE 0-2 57-70 195-280 35-55 5-250SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness SC0002 NONE RARE 0.5-1.0 APPARENT NOV-APR >80 -
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- SC0002 0-7 LS LFS 0-0 98-100 3-15 8-15 SC0002 0-7 SL FSL L 0-0 98-100 5-20 10-20 SC0002 7-50 C SC 0-0 98-100 35-60 14-25 SC0002 50-78 C SC SCL 0-0 98-100 25-45 14-21 SC0002 78-85 VAR 0-0 98-100 10-50 10-25
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll SC0002 0-7 3.5-6.5 0.5-2.0 0-0 2.0-6.0 LOW SC0002 0-7 3.5-6.5 0.5-2.0 0-0 2.0-6.0 LOW SC0002 7-50 5.1-6.5 0.0-0.5 0-0 0.06-0.2 MODERATE SC0002 50-78 5.1-8.4 0.0-0.5 0-0 0.06-0.6 MODERATE SC0002 78-85 5.1-8.4 0.0-0.5 0-0 0.06-0.6 LOW