LOCATION BANNERTOWN NC+VAEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, semiactive, mesic Typic Dystrudepts
TYPICAL PEDON: Bannertown gravelly coarse sandy loam (in an area of Rhodhiss-Bannertown-Rock outcrop complex, 25 to 60 percent slopes), on a 35 percent slope, in an area of woodland. (Colors are for moist soil unless otherwise indicated.)
A--0 to 4 inches; dark brown (10YR 3/3) gravelly coarse sandy loam; weak fine granular structure; very friable; many fine and common medium and coarse roots; few fine flakes of mica; 20 percent fine quartz gravel; very strongly acid; clear wavy boundary. (2 to 10 inches thick)
BA--4 to 8 inches; brown (10YR 4/3) gravelly coarse sandy loam; weak fine subangular blocky structure; very friable; many fine and common medium and coarse roots; common fine pores; common fine flakes of mica; few fine grains of feldspar; 20 percent fine quartz gravel; strongly acid; gradual wavy boundary. (0 to 10 inches)
Bw1--8 to 14 inches; yellowish brown (10YR 5/4) gravelly coarse sandy loam; weak medium subangular blocky structure; very friable; common fine, medium, and coarse roots; common fine pores; common distinct brown (10YR 4/3) fillings of BA material between peds and in old root channels; common fine flakes of mica; common fine grains of feldspar; 15 percent fine quartz gravel; strongly acid; gradual wavy boundary.
Bw2--14 to 19 inches; light yellowish brown (10YR 6/4) gravelly coarse sandy loam; weak coarse subangular blocky structure; very friable; common fine, medium, and coarse roots; common fine pores; common fine flakes of mica; common fine grains of feldspar; 15 percent fine quartz gravel; very strongly acid; gradual wavy boundary. (Combined thickness of the Bw horizon is 10 to 30 inches.)
C--19 to 27 inches; light yellowish brown (10YR 6/4) gravelly coarse sandy loam saprolite of granite; massive; friable; common coarse and few fine and medium roots; few fine pores; common distinct yellowish brown (10YR 5/4) clay fillings in old root channels and in relict rock fractures; common fine flakes of mica; common fine grains of feldspar; 15 percent fine gravel; very strongly acid. (0 to 15 inches thick)
Cr--27 to 30 inches; slightly weathered gray granite; weakly cemented; moderate excavation difficulty; abrupt smooth boundary. (0 to 10 inches thick)
R--30 inches; gray granite; very strongly cemented; very high excavation difficulty.
TYPE LOCATION: Surry County, North Carolina; about 1.0 mile southwest of Mount Airy, 0.2 mile north of the intersection of Secondary Roads 1359 and 1363 on Secondary Road 1359, 0.6 mile southeast on farm road (in county industrial park), 800 feet northeast across pasture in woodland; USGS Dobson topographic quadrangle; lat. 36 degrees 28 minutes 34 seconds N. and long. 80 degrees 38 minutes 47 seconds W.
RANGE IN CHARACTERISTICS:
Depth to top of Cambic horizon: 4 to 15 inches
Depth to base of Cambic horizon: 15 to 35 inches
Depth to Bedrock: 20 to 40 inches to hard bedrock
Rock Fragments Content: 5 to 35 percent by volume throughout, mostly gravel, cobbles, or stones
Soil Reaction: Extremely acid to moderately acid, except where limed
Mica Content: 0 to 20 percent, by volume throughout
RANGE OF INDIVIDUAL HORIZONS:
A horizon or Ap horizon (if it occurs):
Color--hue of 10YR or 2.5Y, value of 3 to 5, chroma of 2 to 6
Texture (fine-earth fraction)--coarse sandy loam, sandy loam, fine sandy loam,
or loam
E horizon (if it occurs):
Color--hue of 10YR or 2.5Y, value of 4 to 6, chroma of 2 to 6
Texture (fine-earth fraction)--coarse sandy loam, sandy loam, fine sandy loam, or loam
BA horizon:
Color--hue of 10YR or 2.5Y, value of 4 to 6, chroma of 2 to 6
Texture (fine-earth fraction)--coarse sandy loam, sandy loam, fine sandy loam, or loam
Bw horizon:
Color--hue of 7.5YR to 2.5Y, value of 4 to 6, chroma of 4 to 8
Texture (fine-earth fraction)--coarse sandy loam, sandy loam, fine sandy loam, or loam. Some pedons have thin layers or pockets of sandy clay loam.
C horizon:
Color--hue of 7.5YR to 2.5Y, value of 3 to 8, chroma of 4 to 8, or is variegated in shades of these colors
Texture (fine-earth fraction)--coarse sandy loam, sandy loam, fine sandy loam,
loamy sand, loamy fine sand, or loamy coarse sand
Cr horizon (if it occurs):
Bedrock kind--felsic crystalline rock, mostly granite
Bedrock hardness--extremely weakly cemented to moderately cemented
Fracture interval--greater than 4 inches
Excavation difficulty--low to high
R horizon:
Bedrock kind--felsic crystalline rock, mostly granite
Bedrock hardness--strongly cemented to indurated
Fracture interval--greater than 4 inches
Excavation difficulty--very high or extremely high
COMPETING SERIES: Excluding CEC activity class, there are 36 series in this family. Only competing series in MLRA 136 are listed.
Devotion soils--are moderately deep (20 to 40 inches) to soft bedrock and deep (40 to 60 inches) to hard bedrock
GEOGRAPHIC SETTING:
Landscape: Piedmont upland
Landform: Low hill
Geomorphic Component: Interfluve, head slope, side slope nose slope
Hillslope Profile Position: Summit, shoulder, backslope
Parent Material: Residuum from felsic metamorphic or igneous rock; mostly granites
Slope: 2 to 95 percent
Elevation: 300 to 1,600 feet
Frost Free Period: 160 to 205 days
Mean Annual Air Temperature: 52 to 57 degrees
Mean Annual Precipitation: 40 to 55 inches
GEOGRAPHICALLY ASSOCIATED SOILS:
Clifford soils--very deep, well drained, and have a thick clayey Bt horizon; on similar landforms
Devotion soils--moderately deep to soft rock; on similar landforms
Fairview soils--very deep, well drained, and have a thin clayey Bt horizon; on similar landforms
Nathalie soils--very deep, well drained, and have a thick clayey Bt horizon; on similar landforms
Rhodhiss soils--very deep, well drained, and have a fine-loamy particle-size class; on similar landforms
Stott Knob soils--moderately deep to soft rock, well drained, and have a fine-loamy particle-size class; on similar landforms
Toast soils--very deep, well drained, and have a thin clayey Bt horizon; on similar landforms
DRAINAGE AND PERMEABILITY:
Depth Class: Moderately deep to bedrock
Drainage Class (Agricultural): Somewhat excessively drained
Internal Free Water Occurrence: Very deep
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: Low to medium
Permeability: Moderately rapid
Shrink-Swell Potential: Low
USE AND VEGETATION:
Major Uses: Urban development and forest, some pastureland
Dominant Vegetation: Where cultivated--corn, tobacco, small grain, hay, and apples. Where wooded--eastern white pine, Virginia pine, red oak, white oak, post oak, hickory, blackgum, red maple, and dogwood.
DISTRIBUTION AND EXTENT:
Distribution: Piedmont of North Carolina and Virginia
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Surry County, North Carolina, 2003.
REMARKS: Bannertown soils were previously mapped as Ashlar soils. The 04/1997 relocation of the mesic/thermic line in North Carolina and Virginia necessitated the establishment of the Bannertown series as a mesic counterpart.
Diagnostic horizons and soil characteristics recognized in this pedon:
Ochric epipedon--the zone from 0 to 8 inches (A and BA horizons)
Cambic horizon--the zone from 8 to 19 inches (Bw horizon)
Paralithic contact--the contact at a depth of 27 inches ( top of Cr layer)
Paralithic materials--the zone from 27 to 30 inches (Cr horizon)
Other soil features identified with this pedon:
Series control section--the zone from 0 to 30 inches
ADDITIONAL DATA:
Laboratory Data: No laboratory data available.
Database Information:
Typical Pedon Data Mapunit ID--411639
TABULAR SERIES DATA:
Soil Name Slope Airtemp FrFr/Seas Precip Elevation BANNERTOWN 2-95 52-57 160-205 40-55 300-1600FloodL FloodH Watertable Kind Months Bedrock Hardness NONE 6.0-6.0 - 20-40 HARD
Depth Texture 3-Inch No-10 Clay% -CEC- 0-8 SL FSL 0-2 75-100 5-18 - 0-8 ST-SL ST-FSL 0-5 65-95 5-18 - 0-8 GR-SL GR-FSL GR-CSL 0-2 50-75 5-18 - 0-8 GR-COS GR-LCOS 0-2 50-75 2-10 - 8-27 SL FSL GR-SL 0-8 50-100 5-18 - 27-30 WB - - - - 30 UWB - - - -
Depth -pH- O.M. Salin Permeab Shnk-Swll 0-8 3.5- 5.5 0.5-1. 0-0 2.0- 6.0 LOW 8-27 3.5- 5.5 0.0-0.5 0-0 2.0- 6.0 LOW 27-30 - - - - - 30 - - - - -