LOCATION REDBRUSH NC+VAInactive Series
TAXONOMIC CLASS: Fine, mixed, superactive, mesic Typic Hapludalfs
TYPICAL PEDON: Redbrush gravelly loam (in an area of Siloam-Redbrush complex, 6 to 15 percent slopes), on a convex 10 percent slope on a road right of way. (Colors are for moist soil, unless otherwise indicated.)
Ap1--0 to 5 inches; very dark grayish brown (2.5Y 3/2) gravelly loam, dark grayish brown (2.5Y 4/2), dry; moderate medium granular structure; friable; many fine and common medium roots; 15 percent, by volume quartz gravel and 5 percent quartz cobbles; few fine tubular pores; few fine flakes of mica; slightly acid; clear wavy boundary.
Ap2--5 to 8 inches; olive (5Y 4/4) gravelly loam; moderate fine subangular blocky and moderate fine granular structure; friable; common fine and few medium roots; few fine tubular pores; few fine flakes of mica; 15 percent, by volume quartz gravel and 5 percent quartz cobbles; moderately acid; common medium prominent yellowish brown (10YR 5/6) bodies of clay loam Bt horizon material; abrupt irregular boundary. (Combined thickness of the A horizon is 1 to 12 inches.)
Bt--8 to 18 inches; yellowish brown (10YR 5/6) clay; weak medium prismatic parting to strong medium and coarse subangular blocky structure; firm, very sticky, very plastic; common fine and few medium roots between peds; common medium tubular pores; few fine flakes of mica; common medium prominent continuous light olive brown (2.5Y 5/3) clay films on faces of peds; many medium prominent olive (5Y 4/4) silt coatings on faces of peds; 5 percent, by volume quartz gravel and 5 percent quartz cobbles; common fine manganese concretions; slightly acid; clear irregular boundary. (6 to 25 inches thick)
C/Bt--18 to 25 inches; 60 percent black and green loam saprolite weathered from gneiss; massive, friable, slightly sticky, slightly plastic (C part); 40 percent yellowish brown (10YR 5/8) clay; strong coarse angular blocky structure, firm, very sticky, very plastic; common fine roots between peds; few fine tubular pores; few patchy light olive brown (2.5Y 5/3) clay films on faces of peds; few prominent olive (5Y 4/4) silt coatings between peds (Bt part); few fine flakes of mica; 10 percent, by volume gneiss paragravel; slightly acid; abrupt irregular boundary. (0 to 15 inches thick)
Cr--25 to 37 inches; slightly weathered mafic gneiss; weakly cemented; high excavation difficulty; abrupt smooth boundary. (0 to 15 inches thick)
R--37 inches; mafic gneiss bedrock; strongly cemented; very high excavation difficulty.
TYPE LOCATION: Surry County, North Carolina; about 5.1 miles northeast of Dobson, 0.3 mile east of the intersection of Secondary Road 1356 and Secondary Road 1350,40 feet south of Secondary Road 1356 in right of way; USGS Dobson, NC topographic quadrangle; lat. 36 degrees 27 minutes 51 seconds N. and long. 80 degrees 41 minutes 34 seconds W.
RANGE IN CHARACTERISTICS:
Depth to top of Argillic horizon: 1 to 12 inches
Depth to base of Argillic horizon: 20 to 40 inches
Depth to Bedrock: 20 to 35 inches to soft bedrock (if it occurs) and 20 to 40 inches to hard bedrock
Rock Fragment Content: 0 to 50 percent, by volume in the A, E, BA, and BE horizons and 0 to 35 percent in the Bt, BC, C/Bt, and C horizons; mostly gravel, cobbles, and stones and includes pararock fragments
Soil Reaction: Strongly acid to slightly acid in the upper horizons and moderately acid to mildly alkaline in the lower horizons
Mica Content: 0 to 20 percent, by volume mica flakes throughout
Other Features: 0 to 20 percent, by volume manganese concretions throughout
RANGE OF INDIVIDUAL HORIZONS:
Ap horizon or A horizon (if it occurs):
Color--hue of 7.5YR to 5Y, value of 3 to 5, chroma of 2 to 6
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam. Eroded phases include sandy clay loam or clay loam.
E horizon, where present:
Color--hue of 7.5YR to 2.5Y, value of 4 to 6, chroma of 3 to 6
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam
BA or BE horizon (if it occurs):
Color--hue of 7.5YR to 2.5Y, value of 4 to 6, chroma of 3 to 8
Texture (fine-earth fraction)--sandy loam, fine sandy loam, loam, sandy clay loam, or clay loam
Bt horizon:
Color--hue of 5YR to 2.5Y, value of 4 to 6, chroma of 4 to 8
Texture (fine-earth fraction)--clay loam, sandy clay, or clay
Mottles (if they occur)--shades of black, green, gray, or white
BC horizon (if it occurs):
Color--hue of 5YR to 2.5Y, value of 4 to 6, chroma of 4 to 8, or it is variegated in shades of these colors
Mottles (if they occur)--shades of black, green, gray, or white
Texture (fine-earth fraction)--loam, clay loam, or sandy clay loam
C horizon (if it occurs):
Color--hue of 5YR to 2.5Y, value of 4 to 6, chroma of 4 to 8 or is variegated in shades of these colors
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam saprolite
C/Bt horizon or Bt/C horizon (if it occurs):
C part--same as C horizon
Bt part--same as Bt horizon
In some pedons, the C/Bt horizon consists of thick clay linings that fill relict rock fractures and old root channels.
Cr horizon (if it occurs):
Bedrock kind--mafic rock
Bedrock hardness--extremely weakly cemented to moderately cemented
Fracture interval--greater than 4 inches
Excavation difficulty--low to high
R horizon:
Bedrock kind--mafic rock
Bedrock hardness--strongly cemented to indurated
Fracture interval--greater than 4 inches
Excavation difficulty--very high or extremely high
COMPETING SERIES:
Edenton soils--are moderately deep to soft bedrock, well drained, and formed in glacial till and clayey shale
Eldean soils--are moderately deep to calcareous sandy and gravelly material, well drained and formed in outwash materials
Lamoille soils--are very deep, well drained, and formed in a thin mantle of loess and in underlying clayey residuum and loamy-skeletal colluvium
Paintcreek soils--are very deep, well drained, and formed in a thin mantle of loess and in the underlying clayey pedisediment or residuum from dolomite
Upshur soils--are very deep, well drained, and formed in residuum from clay shale
Wynn soils--are moderately deep, well drained, and formed in a thin layer of loess, loamy glacial till, and the underlying calcareous clayey shale
GEOGRAPHIC SETTING:
Landscape: Piedmont upland
Landform: Hill, ridge, interfluve
Geomorphic Component: Crest, side slope, head slope, nose slope
Hillslope Profile Position: Summit, shoulder, backslope
Parent Material: Residuum from mafic crystalline rock
Slope: 2 to 45 percent
Elevation: 300 to 1600 feet
Parent Material: Residuum from mafic metamorphic or igneous crystalline rock with moderately high levels of ferromagnesium minerals
Mean Annual Air Temperature: 52 to 57 degrees
Mean Annual Precipitation: 40 to 55 inches
Frost Free Period: 160 to 205 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Halifax soils--are very deep (greater than 60 inches) to bedrock; on similar landforms
Haymarket soils--are very deep (greater than 60 inches) to bedrock; on similar landforms
Jackland soils--have iron depletions in the upper part of the subsoil; on lower-lying landforms
Mirerock soils--are deep (40 to 60 inches) to hard bedrock; on similar landforms
Siloam soils--are shallow (10 to 20 inches) to soft bedrock; on similar landforms
Spriggs soils--have a fine-loamy particle-size control section; on similar landforms
DRAINAGE AND PERMEABILITY:
Depth Class: Moderately deep to hard bedrock
Drainage Class (Agricultural): Well drained
Internal Free Water Occurrence: Very deep
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: High or very high
Permeability: Moderately slow or slow
Shrink-Swell Potential: High
USE AND VEGETATION:
Major Uses: Dominantly hayland and pasture and less commonly cultivated crops and woodland.
Dominant Vegetation: Where cultivated--corn, small grain, soybeans, tobacco, and lespedeza. Where wooded--shortleaf pine, Virginia pine, eastern red cedar, blackjack oak, and post oak.
DISTRIBUTION AND EXTENT:
Distribution: North Carolina and Virginia
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Surry County, North Carolina, 2003.
REMARKS: Redbrush soils were previously mapped with the Zion series. The April 1997 relocation of the mesic/thermic line in North Carolina and Virginia necessitated the establishment of the Redbrush series as a mesic counterpart.
Diagnostic horizons and features recognized in this pedon:
Ochric epipedon--the zone from the surface to 8 inches (Ap1 and Ap2 horizons)
Argillic horizon--the zone from 8 to 25 inches (Bt and C/Bt horizons)
Paralithic contact--bedrock contact at a depth of 25 inches (top of the Cr horizon)
Paralithic materials--the zone from 25 to 37 inches (Cr horizon)
Other soil features identified with this pedon:
Presence of hard bedrock--bedrock contact at 37 inches (R horizon)
Series control section--the zone from 0 to 35 inches
ADDITIONAL DATA:
Laboratory Data:
No laboratory data available.
Database Information:
Typical Pedon Data Mapunit ID--82678
TABULAR SERIES DATA:
Soil Name Slope Airtemp FrFr/Seas Precip Elevation REDBRUSH 2-45 52-57 160-205 40-55 300-1600FloodL FloodH Watertable Kind Months Bedrock Hardness NONE >6.0 - - 20-40 HARD
Depth Texture 3-Inch No-10 Clay% -CEC- 0-8 SL FSL L 0-10 75-100 7-27 - 0-8 GR-SL GR-FSL GR-L 0-10 35-75 7-27 - 0-8 GR-SCL 0-10 35-75 20-40 - 8-18 CL C SC 0-10 50-100 35-60 - 18-25 GR-CL CL C 0-20 50-100 20-50 - 25-37 WB - - - - 37 UWB - - - -
Depth -pH- O.M. Salin Permeab Shnk-Swll 0-8 5.1-6.5 0.5-2.0 - 0.6-2.0 LOW 0-8 5.1-6.5 0.1-1.0 - 0.06-0.6 MODERATE 8-18 5.6-7.8 0.0-0.5 - 0.06-0.6 HIGH 18-25 5.6-7.8 0.0-0.5 - 0.06-2.0 HIGH 25-37 - - - - - 37 - - - - -