LOCATION PETTIGREW NCEstablished Series
TAXONOMIC CLASS: Fine, mixed, semiactive, nonacid, thermic Histic Humaquepts
TYPICAL PEDON: Pettigrew muck--cultivated. (Colors are for moist soil unless otherwise stated.)
Oap--0 to 7 inches; black (N 2.5/0), broken face and rubbed sapric material; moderate medium granular structure; very friable; common fine roots and crop residue; few small pieces of charcoal; strongly acid; clear smooth boundary.
Oa--7 to 15 inches; black (5YR 2.5/1), broken face and rubbed sapric material; moderate medium subangular blocky structure; friable; common fine and medium roots; few pieces of charcoal and few pockets of ash; few vertical cracks up to 1/4 inch wide; extremely acid; gradual smooth boundary. (The combined thickness of the Oa horizon is 8 to 16 inches.)
A--15 to 20 inches; very dark grayish brown (10YR 3/2) mucky clay loam; weak fine subangular blocky structure; friable; slightly sticky, slightly plastic; common fine and medium roots and fibers; extremely acid; gradual smooth boundary. (0 to 8 inches thick)
Bg1--20 to 26 inches; very dark gray (10YR 3/1) clay loam; weak medium subangular blocky structure, friable; moderately sticky, moderately plastic; common fine and medium roots and fibers; extremely acid; gradual smooth boundary. (4 to 8 inches thick)
Bg2--26 to 36 inches; dark gray (10YR 4/1) clay; weak fine subangular blocky structure; firm; very sticky, very plastic; common fine and medium roots and fibers; strongly acid; gradual smooth boundary. (8 to 15 inches thick)
Bg3--36 to 50 inches; dark gray (N 4/0) clay; massive and weak fine subangular blocky structure; firm, very sticky, very plastic; common fine and medium roots and fibers; few fine flakes of mica; strongly acid; clear smooth boundary. (12 to 25 inches thick)
2Cg--50 to 74 inches; greenish gray (5G 5/1) and dark greenish gray (5G 4/1) stratified sandy clay loam, sandy loam and coarse sand; massive; friable; the sandy clay loam and clay loam are slightly sticky, slightly plastic; common fine flakes of mica; slightly acid.
TYPE LOCATION: Washington County, North Carolina; approximately 1.5 miles northwest of Lake Phelps and 0.5 mile southeast of First Colony Farms grain elevators; 0.4 mile south of main east-west canal and 100 feet east of main north-south canal in 10th cut.
RANGE IN CHARACTERISTICS:
Solum Thickness: Organic material and clayey materials over unconforming
sediments ranges from 30 to more than 60 inches
Depth to Bedrock: Greater than 60 inches
Depth to Seasonal High Water Table: 0 to 12 inches, December to May
Soil Reaction: Strongly acid to extremely acid in the upper part of the particle-size control section and moderately acid to mildly alkaline
in the lower part of the particle-size control section, and in the 2C horizon
Oap or Oa1 horizon:
Color--hue of 5YR to 2.5Y, or it is neutral, value of 2 or 3, and chroma of 0 to 2
Texture--muck
Other Features--in drained areas, it has weak to moderate medium subangular blocky structure. The unrubbed fiber content ranges from 2 to 20 percent and the rubbed fiber content ranges from 0 to 4 percent. Charcoal fragments and pockets of ash are few to common in some pedons.
Oa2 horizon
Color--hue of 2.5YR to 2.5Y, or it is neutral, value of 2 or 3, and chroma of 0 to 4.
Texture--muck
Other Features--in drained areas, it has weak to moderate medium subangular blocky structure. The unrubbed fiber content ranges from 2 to 20 percent and the rubbed fiber content ranges from 0 to 4 percent. Charcoal fragments and pockets of ash are few to common in some pedons.
A horizon(if it occurs):
Color--has hue of 10YR to 5Y or is neutral, value of 3 to 4, and chroma of 0 to 2
Texture--loam, clay loam, mucky clay loam, silty clay loam, or sandy clay loam or their mucky analogues
Bg horizon
Color--hue of 10YR to 5Y or is neutral, value of 3 to 6, and chroma of 0 to 2.
Texture--clay loam, clay, or silty clay
Redoximorphic Features--Few to common masses of iron accumulation in shades of brown, yellow, or red are present in some pedons.
2Cg horizon:
Color--has hue of 10YR to 5G or is neutral, value of 4 to 6, and chroma of 0 to 2.
Texture--stratified sandy and loamy sediment.
COMPETING SERIES:
There are no other series in this family.
GEOGRAPHIC SETTING:
Landscape: Coastal Plain
Landform: Flats and Depression
Elevation: Less than 25 feet above mean sea level
Parent Material: Clayey marine sediments
Mean Annual Air Temperature: 61 to 66 degrees
Mean Annual Precipitation: 42 to 54 inches
Frost Free Period: 219 to 293 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Arapahoe soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in coarse-loamy family, lacking histic epipedons on similar landscapes
Ballahack soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine loamy family, lacking histic epipedons on similar landscapes
Belhaven soils--very poorly drained soils (seasonal high water table 0 to 12 inches) that have 16 to 51 inches of organic material on similar landscapes
Cape Lookout soils--very poorly drained soils (seasonal high water table 0 to 12 inches) lacking histic epipedons on similar landscapes
Conaby soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in coarse-loamy family on similar landscapes
Hyde soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-silty family, lacking histic epipedons on similar landscapes lacking
Ponzer soils--very poorly drained soils (seasonal high water table 0 to 12 inches) that have 16 to 51 inches of organic material on similar landscapes
Portsmouth soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy family, lacking histic epipedons on similar landscapes
Pungo soils--very poorly drained soils (seasonal high water table 0-1 foot) that have greater than 51 inches of organic material on similar landscapes
Roper soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-silty family on similar landscapes
Wasda soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy family on similar landscapes
Weeksville soils--very poorly drained (seasonal high water table 0 to 12 inches) in coarse-silty family, lacking histic epipedons on similar landscapes
DRAINAGE AND PERMEABILITY:
Agricultural Drainage Class: Very poorly drained
Permeability: Moderately rapid to moderately slow in the organic layer, and very slow permeability in the subsoil
USE AND VEGETATION:
Major Uses: Most of the acreage is in woodland with small acreage cultivated
Dominant vegetation: Where wooded--water tupelo (Nyssa aquatica), swamp blackgum (Nyssa sylvatica var.b.flora), green ash (Fraxinus pennsylvanica), southern baldcypress (Taxodium distichum), sweetgum (Liquidambar styraciflua), red maple (Acer rubrum), sweetbay magnolia (Magnolia virginiana), redbay (Persea borbonia), loblolly pine (Pinus taeda), pond pine (Pinus serotina), water oak (Quercus nigra), and Atlantic white cedar (Chamaecyparis thyoides; Understory species include greenbrier, switchcane, inkberry (bitter gallberry), sweetbay, southern bayberry (waxmyrtle), and sourwood; Where cultivated--corn, soybeans,
wheat, pasture, and vegetable crops
DISTRIBUTION AND EXTENT:
Distribution: Atlantic Coastal Flatwoods in North Carolina and possibly Georgia, South Carolina, and Virginia
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Washington County, North Carolina; 1979.
REMARKS: Diagnostic horizons and soil characteristics recognized in the typical pedon are:
Histic epipedon -the zone from the surface to a depth of 15 inches
Cambic horizon -the zone between 26 and 36 inches (Bg2 horizon)
Aquic soil conditions -indicated by the presence of dominant colors in shades of gray that are iron depletions (Bg1, Bg2, Bg3, and 2Cg horizons)
MLRA(s): 153B
ADDITIONAL DATA:
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation NC0112 PETTIGREW 0-2 60-65 210-260 46-54 5-25SOI-5 FloodL FloodH Watertable Kind Months Bedrock NC0112 RARE 0-1.0 APPARENT DEC-MAY 60-60
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- NC0112 0-15 MUCK 0-0 0-0 20-50 - NC0112 15-26 L CL SICL 0-0 100-100 10-30 6-26 NC0112 26-50 CL C SIC 0-0 100-100 35-60 7-14 NC0112 50-74 VAR
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll NC0112 0-15 3.5-5.5 20-50 0-0 0.2-6.0 LOW NC0112 15-26 3.5-5.5 4.-20 0-0 0.06-0.2 MODERATE NC0112 26-50 3.5-5.5 .5-2. 0-0 0.02-0.06 HIGH NC0112 50-74 5.6-7.8