LOCATION MONCURE NCEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, semiactive, thermic Typic Endoaquults
TYPICAL PEDON: Moncure silt loam on low Piedmont terraces along poorly defined drainageways, in a wooded site. (Colors are for moist soil.)
Oi--0 to 2 inches; partly decomposed leaves and twigs.
A--2 to 4 inches; very dark grayish brown (10YR 3/2); silt loam; weak fine granular structure; friable; non-sticky; non-plastic; many fine roots; very strongly acid; abrupt smooth boundary. (1 to 10 inches thick)
Eg--4 to 12 inches; light gray (10YR 7/2); silt loam; moderate medium granular structure; friable; non-sticky; slightly plastic; common fine roots; common medium distinct yellow (10YR 7/6) and common fine prominent strong brown (7.5YR 5/8) irregularly shaped masses of iron accumulation; very strongly acid; gradual smooth boundary. (0 to 10 inches thick)
Btg1--12 to 20 inches; light brownish gray (10YR 6/2); silt loam; weak fine subangular blocky structure; friable; sticky; slightly plastic; common fine roots; common medium distinct yellow (10YR 7/6) and common fine prominent strong brown (7.5YR 5/8) irregularly shaped masses of iron accumulation; extremely acid; gradual smooth boundary.
Btg2--20 to 26 inches; light brownish gray (10YR 6/2); silty clay loam; weak medium subangular blocky structure; friable; sticky; plastic; common fine roots; common medium prominent strong brown (7.5YR 5/8) irregularly shaped masses of iron accumulation; extremely acid; gradual smooth boundary.
Btg3--26 to 41 inches; light brownish gray (10YR 6/2); silty clay loam; weak medium subangular blocky structure; firm; sticky; plastic; common fine roots; common medium prominent yellowish brown (10YR 5/8) irregularly shaped masses of iron accumulation; very strongly acid; gradual smooth boundary. (Combined thickness of the Btg horizon is 20 to 50 inches.)
BCg--41 to 52 inches; light gray (10YR 7/2); silt loam; weak coarse subangular blocky structure; friable; slightly sticky; non-plastic; common fine roots; common medium prominent yellowish brown (10YR 5/8) irregularly shaped masses of iron accumulation; very strongly acid; gradual smooth boundary. (0 to 15 inches thick)
Cg--52 to 60 inches; light gray (10YR 7/2); silt loam; massive; friable; slightly sticky; non-plastic; slightly brittle; few fine roots; common medium prominent yellowish brown (10YR 5/8) irregularly shaped masses of iron accumulation; very strongly acid. (0 to 15 inches thick)
TYPE LOCATION: Chatham County, North Carolina; about 2.2 miles east of Moncure on Secondary Road 1011; south onto Woodland Road; across railroad tracks; right onto dirt road until it ends; 150 feet south southeast; in woods; USGS Moncure topographic quadrangle; lat. 35 degrees, 36 minutes, 43 seconds N and long. 79 degrees, 00 minutes, 45 seconds W. (NAD 83).
RANGE IN CHARACTERISTICS:
Solum Thickness: 40 to 60 inches
Depth to Bedrock: Greater than 72 inches
Depth to Seasonal High Water Table: 0 to 1.0 feet below the soil surface, mostly during the months of November to May
Rock Fragments: 0 to 10 percent, by volume rounded and subrounded quartz pebbles throughout the solum
Depth to Highly Stratified Materials: Greater than 40 inches
Content of Mica: 0 to 20 percent, by volume, throughout
Soil Reaction: Extremely acid to strongly acid, except where limed
RANGE OF INDIVIDUAL HORIZONS:
O horizon:
Color--hue of 10yr to 5Y, value of 2 to 4, and chroma of 1 to 3
Texture:--slightly or moderately decomposed plant material
A or Ap horizon:
Color--hue of 10YR or 2.5Y, value of 2 to 7, and chroma of 0 to 2. Value of 2 or 3 is limited to horizons less than 6 inches thick.
Texture--silt loam, loam, or fine sandy loam
Eg horizon:
Color--hue of 10YR or 2.5Y, or neutral, value of 2 to 7, and chroma of 0 to 2
Texture--silt loam, loam, or fine sandy loam
Redoximorphic features: iron masses in shades of red, yellow, or brown
BAg or BEg horizon (if it occurs):
Color--hue of 10YR or 2.5Y, or is neutral, value of 4 to 7, and chroma of 0 to 2
Texture--silt loam, loam, silty clay loam or clay loam
Redoximorphic features: iron masses in shades of red, yellow, or brown are present in some pedons
Btg horizon:
Color--hue of 10YR or 2.5Y, or is neutral, value of 4 to 7, and chroma of 0 to 2
Texture--silt loam, loam, silty clay loam, or clay loam
Redoximorphic features: iron masses in shades of red, yellow, or brown
BCg horizon:
Color--hue of 10YR or 2.5Y, or is neutral, value of 4 to 7, and chroma of 0 to 2
Texture--silt loam, loam, silty clay loam, or clay loam
Redoximorphic features: iron masses in shades of red, yellow, or brown are in most pedons
Cg horizon:
Color--variable
Texture--commonly stratified and ranges from sand to clay
Redoximorphic features: iron masses in shades of red, yellow, or brown
COMPETING SERIES:
Perquimans soils-formed from loamy marine sediments (MLRA 153B).
Toddstav soils--have a moderate permeabilty and are located in the mesic Piedmont
Similar soils:
Amy soils--have more than 90 percent quartz in the sand fraction (siliceous mineralogy).
Othello soils--have a solum thickness of 24 to 40 inches
Roanoke soils-have a fine particle size class
GEOGRAPHIC SETTING:
Landscape: Thermic Southern Piedmont river and stream valleys
Landform: Low river and stream terraces
Parent Material: Silty alluvium derived from the Carolina Slate Belt
Mean Annual Air Temperature: 60 degrees F
Mean Annual Precipitation: 47 inches
Frost Free Period: 180 to 260 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Merry Oaks soils--are somewhat poorly drained and are intermingled on slightly higher landscape positions
Sylacauga soils--are somewhat poorly drained and have a lithologic discontinuity
Peawick soils--are moderately well drained, have a fine particle size class and are on adjacent, older, higher terraces
Mattaponi soils--are moderately well drained, have a fine particle size class and formed in fine and medium textured Coastal Plain and fluvial sediments
Riverview soils--are well drained, have a fine-loamy particle size class and are on adjacent floodplains
Shellbluff soils--are well drained and are on adjacent floodplains
Chewacla soils--are somewhat poorly drained, have a fine-loamy particle size class and are on adjacent floodplains
Chenneby soils--are somewhat poorly drained and are on adjacent floodplains
Wehadkee soils--have a fine-loamy particle size class and are on adjacent floodplains
Worsham soiks--have a clayey particle size class and are on upland depressions
DRAINAGE AND PERMEABILITY:
Agricultural Drainage Class: Poorly drained
Surface Runoff: Slow
Permeability of Restrictive Layer (upper 60 inches): Slow
USE AND VEGETATION:
Major Uses: mixed hardwood and pine forest
Dominant Vegetation: Where forested--loblolly pine, red maple, sweet gum, black gum, water oak, winged elm, and willow oak.
DISTRIBUTION AND EXTENT:
Distribution: Thermic region of Piedmont in the Carolina Slate Belt, North Carolina and possibly Virginia
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Chatham County, North Carolina, 2005
REMARKS: Moncure soils were previously mapped as Roanoke soils. Roanoke soils have a fine particle size family.
Diagnostic horizons and soil characteristics recognized in this pedon are:
Ochric epipedon--the zone from the soil surface to a depth of 4 inches (A horizon)
Argillic horizon--the zone from 12 to 41 inches (Btg horizons)
Series control section--the zone from 0 to 60 inches
ADDITIONAL DATA:
Reference particle-size data is available from the project soil survey staff, Pittsboro, North Carolina.
Data Map Unit ID:
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
Moncure 0-2 57-65 180-260 40-55 150-450
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness
NONE COMMON 0-1.0 Apparent NOV-MAY 60-60
SOI-5 FREQ 0-1.0 Apparent NOV-MAY 60-60
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC-
0-12 L SIL 0-0 95-100 7-20 -
12-41 SIL CL SICL 0-0 95-100 18-35 -
41-70 L SIL SL 0-0 95-100 7-27 -
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll-
0-12 3.6-5.5 1-3 0-0 0.6-2.0 LOW
12-41 3.6-5.5 .5-1 0-0 0.06-0.2 LOW
41-70 3.6-5.5 .5-1 0-0 0.6-2.0 LOW