LOCATION SPRIGGS VA+MD NCEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Ultic Hapludalfs
TYPICAL PEDON: Spriggs silt loam (in an area of Spriggs silt loam, 15 to 25 percent slopes), in Oak-hickory forest on a gently sloping ridge crest with 2 to 7 percent slopes. (Colors are for moist soils unless otherwise indicated.)
A--0 to 2 inches; brown (10YR 4/3) silt loam, brown (10YR 5/3), dry; moderate fine and very fine granular structure; very friable; many fine medium and coarse roots; 2 percent, by volume angular vein quartz gravel; very strongly acid; clear smooth boundary. (1 to 6 inches thick)
E--2 to 8 inches; yellowish brown (10YR 5/6) silt loam; moderate fine and very fine granular structure; very friable; many fine medium and coarse roots; 1 percent, by volume angular vein quartz gravel; very strongly acid; clear smooth boundary. (3 to 10 inches thick)
Bt--8 to 18 inches; strong brown (7.5YR 5/8) clay loam; moderate fine subangular blocky structure; firm, slightly sticky, slightly plastic; many fine and medium roots and few coarse roots; few fine and medium continuous pores; common distinct clay films on ped faces; few fine and medium iron-manganese concretions; 8 percent, by volume partially weathered hornblende gneiss fragments and 1 percent angular vein quartz gravel; few fine mica flakes; strongly acid; clear smooth boundary. (6 to 20 inches thick)
C--18 to 32 inches; yellowish red (5YR 5/8) gravelly loam; common high and low chroma parent material mottles; massive; friable; common fine and medium roots; many thin and medium clay flows in crevices; 35 percent, by volume partially weathered gneiss fragments and 2 percent angular quartz gravel; few fine mica flakes; strongly acid; gradual irregular boundary. (4 to 20 inches thick)
Cr--32 to 48 inches; slightly weathered hornblende gneiss in shades of black, brown, green, yellow and white; weakly cemented; high excavation difficulty; rock material crushes to sandy loam; clear irregular boundary. (10 to 20 inches or more thick)
R--48 inches; hornblende gneiss bedrock; very strongly cemented; very high excavation difficulty.
TYPE LOCATION: Prince William County, Virginia; in Prince William Forest Park, about 1.0 mile south of Route 234, about 300 feet west of road to camp number 4, in hardwood forest; USGS Unknown, VA topographic quadrangle; lat. 00 degrees 00 minutes 00 seconds N. and long. 00 degrees 00 minutes 00 seconds W.
RANGE IN CHARACTERISTICS:
Depth to top of Argillic horizon: 4 to 15 inches
Depth to base of Argillic horizon: 20 to 40 inches
Depth to Bedrock: 20 to 40 inches to soft bedrock and 40 to 60 inches or more to hard bedrock
Depth to Seasonal High Water Table: Greater than 60 inches
Rock Fragment Content: 0 to 5 percent, by volume quartz gravel throughout and 3 to 35 percent partially weathered gneiss or schist fragments in the lower B horizon and the C horizon
Soil Reaction: Moderately acid to very strongly acid throughout, unless limed
RANGE OF INDIVIDUAL HORIZONS:
A horizon:
Color--hue of 7.5YR to 2.5Y, value of 3 or 4, chroma of 2 to 4
Texture--sandy loam, fine sandy loam, loam, or silt loam
E horizon:
Color--hue of 7.5YR or 10YR, value of 4 to 6, chroma of 3 to 6
Texture--sandy loam, fine sandy loam, loam, or silt loam
Bt horizon:
Color--hue of 5YR to 10YR, value of 5 or 6, chroma of 4 to 8
Texture (fine-earth fraction)--loam, silt loam, clay loam, sandy clay loam, or silty clay loam
C horizon:
Color--hue of 2.5YR to 2.5Y, value of 4 to 8, chroma of 1 to 8 or is variegated in shades of these colors
Texture (fine-earth fraction)--loam, sandy loam, fine sandy loam, or silt loam
Cr horizon:
Bedrock kind--hornblende gneiss, hornblende schist, or gabbro that crushes to loam, sandy loam, fine sandy loam, or silt loam
Color--shades of black, brown, green, yellow, or white or has hue of 2.5YR to 2.5Y, value of 4 to 8, chroma of 1 to 8
Fracture interval--greater than 4 inches
Excavation difficulty--low to high
R horizon (if it occurs):
Bedrock kind--hornblende gneiss, hornblende schist, or gabbro
Bedrock hardness--strongly cemented to indurated
Fracture interval--greater than 4 inches
Excavation difficulty--very high or extremely high
COMPETING SERIES:
Alanthus soils--are very deep, well-drained, and formed in residuum of metabasalt and greenstone schist in the Blue
Ridge Foothills
Athol soils--are very deep, well drained, and formed in residuum mostly from Triassic age conglomerate or breccia
Cateache soils--are moderately deep to soft bedrock, well drained, and formed in residuum from sedimentary rock
Culleoka soils--are moderately deep to hard bedrock, well drained, and formed in colluvium or residuum from sedimentary rock
Door soils--are very deep, well drained, and formed in loamy glacial outwash
Duffield soils--are deep and very deep to hard rock, well drained, and formed in residuum from limestone rock
Dumfries soils--are very deep, well drained, and formed in feldspathic sandy sediments in the Coastal Plain
Ebbing soils--are very deep, moderately well drained, and formed in alluvium from sedimentary rock
Frondorf soils--are moderately deep to hard rock, well drained, and formed in a mantle of loess over residuum from sedimentary rock
Grayford soils--are deep to hard bedrock, well drained, and formed in a thin layer of loess, over glacial till or residuum from limestone
Kell soils--are moderately deep to soft rock, well drained, and formed in loamy drift over residuum from sedimentary rock
Lamotte soils--are very deep, well drained, and formed in a thin layer of loess over loamy residuum weathered from sedimentary rock
Legore soils--are very deep, well drained, and formed in material weathered from diabase, diorite, and related rock
Loudonville soils--are moderately deep to hard bedrock, well drained, and formed in loamy till over sedimentary rock
Mechanicsburg soils--are deep and very deep to hard bedrock, well drained, and formed in glacial till over sedimentary rock
Morrison soils--are very deep, well drained, and formed in residuum of weathered noncalcareous sedimentary rock
Myersville soils--are deep to soft rock, well drained, and formed in residuum from basic crystalline rocks
Oatlands soils--are moderately deep to hard bedrock, well drained, and formed in residuum from Triassic-Jurassic interbedded sandstone and conglomerate of the
Culpeper
Basin and Triassic lowlands
Pasturerock soils--are very deep, well drained, and formed in colluvium derived from sedimentary rock
Westmoreland soils--are deep and very deep to hard bedrock, well drained, and formed in residuum and colluvium from sedimentary rock of the
Allegheny Plateau
Wheeling soils--are very deep, well drained, and formed in alluvium from sedimentary rock
Williamsburg soils--are very deep, well drained, and formed in loess over stratified outwash
GEOGRAPHIC SETTING:
Landscape: Piedmont upland
Landform: Hill, ridge
Geomorphic Component: Interfluve, sideslope
Hillslope Profile Position: Summit, shoulder, back slope
Parent Material: Residuum weathered from mafic rock
Slope: 2 to 50 percent
Elevation: 400 to 1,300 feet
Frost Free Period: 160 to 205 days
Mean Annual Air Temperature: 52 to 57 degrees F.
Mean Annual Precipitation: 40 to 55 inches
GEOGRAPHICALLY ASSOCIATED SOILS:
Buckhall soils--are very deep, have a fine particle-size class, and formed in residuum from felsic crystalline rock; on similar landforms
Elioak soils--are very deep, have a fine particle-size class, and formed in residuum from micaceous felsic crystalline rock; on similar landforms
Minnieville soils--are very deep and have a fine particle-size class; on similar landforms
Orenda soils--are very deep and have a fine particle-size class; on similar landforms
DRAINAGE AND PERMEABILITY:
Depth Class: Moderately deep (20 to 40 inches) to bedrock and deep or very deep (more than 40 inches) 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: Low to high
Permeability: Moderate
Shrink-Swell Potential: Low
USE AND VEGETATION:
Major Uses: Woodland
Dominant Vegetation: Where cultivated--corn, soybeans, hay, and pasture. Where wooded--Upland oaks, and hickory.
DISTRIBUTION AND EXTENT:
Distribution: Virginia, Maryland, and North Carolina
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Prince William County, Virginia, 1985.
REMARKS:
Diagnostic horizons and soil characteristics recognized in this pedon:
Ochric epipedon--the zone from 0 to 8 inches (A and E horizons)
Argillic horizon--the zone from 8 to 18 inches (Bt horizon)
Paralithic contact--bedrock contact at a depth of 32inches (upper boundary of the Cr layer)
Paralithic materials--the zone from 32 to 48 inches (Cr horizon)
Other soil features identified with this pedon:
Presence of hard bedrock at 48 inches (R horizon)
Series control section--the zone from 0 to 42 inches
ADDITIONAL DATA:
Laboratory Data: Data for the typifying pedon is available from the Virginia Tech Soil Survey Lab.
Database Information:
Typical Pedon Data Mapunit ID--426389
TABULAR SERIES DATA:
Soil Name Slope Airtemp FrFr/Seas Precip Elevation Spriggs 2-50 52-57 160-210 42-60 400-1300FloodL FloodH Watertable Kind Months Bedrock Hardness None >60 -- -- 20-40 Soft 40-60 Hard
Depth Texture 3-Inch No-10 Clay% -CEC- 0-8 SIL L 0-2 80-100 10-27 -- 0-8 SL FSL 0-2 80-100 10-20 -- 8-18 SICL CL L 0-2 50-100 20-35 -- 18-32 SL L GR-L 0-10 50-100 15-27 -- 32-48 WB -- -- -- -- 48-58 UWB -- -- -- --
Depth -pH- O.M. Salin Permeab Shnk-Swll 0-8 4.5-6.0 0.5-2.0 0-0 0.6- 2.0 LOW 0-8 4.5-6.0 0.5-2.0 0-0 0.6- 2.0 LOW 8-18 4.5-6.0 0.0-0.5 0-0 0.6- 2.0 MODERATE 18-32 4.5-6.0 0.0-0.5 0-0 0.6- 2.0 LOW 32-48 -- -- -- -- -- 48-58 -- -- -- -- --