LOCATION CLAYCREEK SC+NCEstablished Series
TAXONOMIC CLASS: Fine-silty, siliceous, semiactive, thermic Oxyaquic Hapludalfs
TYPICAL PEDON: Claycreek silt loam--on a 2 percent slope in a cultivated field. (Colors are for moist soil.)
Ap--0 to 4 inches; light olive brown (2.5Y 5/4) silt loam; weak fine granular structure; very friable; many fine roots; 5 percent gravel and channers; moderately acid; clear smooth boundary. (2 to 8 inches thick)
Bt1--4 to 15 inches; yellowish brown (10YR 5/6) silt loam; weak fine and medium subangular blocky structure; very friable; common fine roots; common fine and medium pores; common distinct brown (10YR 5/3) clay films on faces of peds; 2 percent gravel and channers; many medium distinct light olive brown (2.5Y 5/6) iron depletions; very strongly acid; clear wavy boundary.
Bt2--15 to 22 inches; yellowish brown (10YR 5/6) silty clay loam; weak medium subangular blocky structure; very friable; common fine roots; common fine and medium pores; common distinct brown (10YR 5/3) clay films on faces of peds; 2 percent gravel and channers; common medium distinct pale brown (10YR 6/3) iron depletions; very strongly acid; gradual wavy boundary.
Bt3--22 to 33 inches; reddish yellow (7.5YR 6/8) and light gray (10YR 7/1) silty clay loam; weak medium subangular blocky structure; friable; few fine roots; common fine and medium pores; common distinct brown (10YR 5/3) clay films on faces of peds; 2 percent gravel and channers; the areas with gray colors are iron depletions and the areas with yellow colors are iron accumulations; very strongly acid; gradual wavy boundary. (Combined thickness of the Bt horizon is 20 to 48 inches.)
BC--33 to 39 inches; reddish yellow (7.5YR 6/8) and light gray (10YR 6/1) silt loam; weak coarse subangular blocky structure; friable; few fine pores; few faint clay films on faces of peds; the areas with gray colors are iron depletions and the areas with yellow colors are iron accumulations; strongly acid; gradual wavy boundary. (0 to 10 inches thick.)
C--39 to 63 inches; brownish yellow (10YR 6/8), light gray (10YR 7/1), dark brown (7.5YR 4/4) and weak red (2.5YR 4/2) silty clay loam; massive; firm; few fine pores; the areas with gray colors are iron depletions and the areas with yellow, brown, and red colors are iron accumulations; strongly acid.
TYPE LOCATION: Chesterfield County, South Carolina; 0.8 miles west of Mt. Croghan on S. C. Highway 9; 6.0 miles northwest on S. C. Secondary Highway 30; 225 feet northeast on unpaved road; 100 feet southeast of road.
RANGE IN CHARACTERISTICS: Solum thickness is 30 to 60 inches. Depth to bedrock is more than 60 inches. Content of coarse fragments ranges from 0 to 5 percent in the A, E and Bt horizons, and 0 to 20 percent in the BC and C horizons. The soil is very strongly acid to moderately acid throughout, except where the surface layer has been limed.
The A or Ap horizon has hue of 7.5YR to 2.5Y, value of 3 to 6, and chroma of 1 to 6. It is fine sandy loam, loam or silt loam.
The E horizon, where present, has hue of 7.5YR to 2.5Y, value of 5 to 7, and chroma of 2 to 4. It is fine sandy loam, loam or silt loam.
The Bt horizon has hue of 7.5YR to 2.5Y, value of 5 to 7, and chroma of 3 to 8, or may be without dominant matrix color in the lower part. Iron depletions with chroma 2 or less occur within 24 inches of the upper boundary of the Bt horizon. It is silt loam, silty clay loam, or clay loam.
The Btg horizon, where present, has hue of 7.5YR to 2.5Y, value of 5 to 7, and chroma of 1 or 2. Masses of iron accumulation in shades of yellow, brown, or red may be present. It is clay loam, silty clay loam, or silty clay.
The BC horizon, where present, has hue of 7.5YR to 2.5Y, value of 3 to 8, and chroma of 3 to 8, or it is mottled without dominant matrix color. It is silt loam, silty clay loam, sandy clay loam, or clay loam.
The BCg horizon, where present, has hue of 7.5YR to 2.5Y, value of 3 to 8, and chroma of 1 or 2. It is silt loam, silty clay loam, sandy clay loam, or clay loam.
The C horizon has hue of 10R to 2.5Y, value of 3 to 8, and chroma of 3 to 8, or it is mottled without dominant matrix color. It is sandy loam, loam, silt loam, clay loam or silty clay loam.
The Cg horizon, where present, has hue of 10R to 2.5Y, value of 3 to 8, and chroma of 1 or 2. It is sandy loam, loam, silt loam, clay loam or silty clay loam.
COMPETING SERIES: These are the Pageland, Rexor, and Spiro series in the same family, and the Creedmoor and White Store series in similar families. Pageland and Spiro soils have a paralithic contact at a depth of 20 to 40 inches. Rexor soils formed in alluvium on flood plains and do not have mottles of chroma of 2 of less above a depth of 36 inches. Creedmoor soils have a clayey particle-size control section and are Ultisols. White Store soils have a fine particle-size control section.
GEOGRAPHIC SETTING: Claycreek soils are on nearly level to gently sloping areas in the Triassic basin of the Southern Piedmont. Slopes range from 0 to 6 percent. The soils formed in material weathered from Triassic siltstone, mudstone, and fine-grained sandstone. Mean annual precipitation ranges from 48 to 50 inches and mean annual temperature ranges from 60 to 62 degrees. The growing season ranges from 210 to 225 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These include the Alamance, Badin, Chewacla and Mayodan soils. Alamance and Badin soils formed in material weathered from Carolina slate in areas adjacent to the Triassic basin, in addition Badin soils have soft bedrock at a depth of 20 to 40 inches. Chewacla soils are on flood plains and are Dystrochrepts. Mayodan soils are on slightly higher areas, do not have mottles of chroma 2 or less in the Bt horizon and are Ultisols.
DRAINAGE AND PERMEABILITY: Moderately well drained; slow to medium runoff; moderately slow permeability. These soils have a perched water table at a depth of 1.5 to 3.0 feet.
USE AND VEGETATION: Most areas are cleared and used for growing soybeans, small grain, or pasture. Forested areas are in oaks, hickory, gum and pine.
DISTRIBUTION AND EXTENT: The Triassic basins of the Piedmont of South Carolina and North Carolina and possibly Virginia. The soils of this series are of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Chesterfield County, South Carolina; 1989.
REMARKS: These soils were formerly included in the Creedmoor series in mapping.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from the surface of the soil to a depth of 4 inches (Ap horizon).
Argillic horizon - the zone between a depth of 4 and 33 inches (Bt1, Bt2, and Bt3 horizons).
MLRA 136 SIR SC0139
ADDITIONAL DATA:
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation SC0139 CLAYCREEK 0- 6 60- 62 210-225 48- 50 350- 600SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness SC0139 NONE 1.5-3.0 PERCHED DEC-MAR 60-60
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- SC0139 0- 4 SIL L FSL 0-1 88-100 4-20 3-6 SC0139 4-22 SICL CL SIL 0-1 90-100 18-35 4-10 SC0139 22-33 CL SICL SIC 0-1 90-100 27-50 6-22 SC0139 33-39 SIL SICL CL 0-1 90-100 18-35 8-20 SC0139 39-63 SL SIL SICL 0-1 85-100 10-35 8-18
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll SC0139 0- 4 4.5- 6.5 .5-2. 0- 0 0.6- 2.0 LOW SC0139 4-22 4.5- 6.0 0.-.5 0- 0 0.2- 0.6 LOW SC0139 22-33 4.5- 6.0 0.-.5 0- 0 0.2- 0.6 MODERATE SC0139 33-39 4.5- 6.0 0.-.5 0- 0 0.2- 0.6 MODERATE SC0139 39-63 4.5- 6.0 0.-.5 0- 0 0.2- 0.6 LOW