LOCATION KIBLER VAEstablished Series
TAXONOMIC CLASS: Fine-loamy, micaceous, mesic Typic Dystrudepts
TYPICAL PEDON: Kibler loam on a 10 percent slope, in woodland (Colors are for moist soil unless otherwise indicated.)
A--0 to 8 inches; dark brown (10YR 3/3) loam; brown (10YR 5/3) dry; weak medium granular structure; friable; slightly sticky, slightly plastic; many fine, medium, and coarse roots; few fine tubular pores; few fine mica flakes; 5 percent subangular quartz gravel; very strongly acid; clear wavy boundary. (5 to 9 inches thick)
Bt--8 to 24 inches; strong brown (7.5YR 4/6) sandy clay loam; 2 percent medium prominent dark brown (10YR 3/3) organic stains between peds and in pores; 2 percent medium distinct strong brown (7.5YR 5/8) mottles in the matrix; moderate medium subangular blocky structure; friable; moderately sticky, moderately plastic; many fine and medium roots and few coarse roots; common fine tubular pores; 1 percent faint clay films on faces of peds; many fine mica flakes; 10 percent gravel; very strongly acid; gradual wavy boundary.
BCt--24 to 32 inches; yellowish red (5YR 5/8) sandy clay loam; weak medium subangular blocky structure; friable; slightly sticky, moderately plastic; few fine, medium, and coarse roots; common fine tubular pores; 1 percent faint clay films on faces of peds; many fine mica flakes; 10 percent subangular quartz gravel; strongly acid; gradual wavy boundary. (Combined thickness of the B horizon is 20 to 40 inches or more.)
C--32 to 54 inches; yellowish red (5YR 5/8) paragravelly fine sandy loam; common medium faint strong brown (7.5YR 4/6) mottles; massive; friable; nonsticky, nonplastic; many fine mica flakes; 10 percent subangular quartz gravel, 25 percent subangular gneiss paragravel; strongly acid; clear irregular boundary. (0 to 20 inches or more thick)
Cr--54 to 80 inches; soft, gneiss bedrock; moderately cemented; high excavation difficulty.
TYPE LOCATION: Patrick County, Virginia; about 0.45 miles north of US-58 on SR-795; 150 feet southwest of SR-795 and 150 feet south of Floyd/Patrick County line; USGS Meadows of Dan (VA) quadrangle; latitude 36 degrees 44 minutes 32 seconds N; longitude 80 degrees 23 minutes 55 seconds W.
RANGE IN CHARACTERISTICS:
Depth to top of Cambic horizon: 5 to 9 inches
Depth to base of Cambic horizon: 20 inches or more
Depth to Bedrock: 40 to 60 inches to soft bedrock and greater than 60 inches to hard bedrock
Rock and Pararock Fragment Content: 0 to 25 percent, by volume, in the A horizon, 0 to 35 percent in the B horizons, 0 to 75 percent in the C horizon; mostly gravel and cobble size
Depth to Seasonal High Water Table: Greater than 60 inches
Soil Reaction: Very strongly acid to moderately acid, unless limed
Organic matter content: 2 to 8 percent in the A horizon, 0.0 to 0.5 percent in the B and C horizons
(Effective) Cation Exchange Capacity: 2 to 15 milliequivalents per 100 grams of soil in the A horizon; 1 to 7 in B horizon; and 0 to 4 in the C horizon
Shrink-swell potential: Low
Mica Content: less than 20 percent, by volume mica flakes in the A horizon, more than 20 percent in the B horizon, and more than 35 percent in the C horizon
RANGE OF INDIVIDUAL HORIZONS:
A or Ap horizon:
Color--hue of 5YR to 2.5Y, value of 3 or less moist and 5 or less dry, chroma of 1 to 4
Texture (fine-earth fraction)--sandy loam, fine sandy loam, loam; eroded phases include sandy clay loam. Some pedons may have a mucky modifier.
Clay content--10 to 27 percent
AB or BA horizon (where present):
Color--hue of 5YR to 10YR, value of 3 to 6, chroma of 3 to 6
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam
Clay content--12 to 27 percent
Bt or Bw horizon:
Color--hue of 5YR to 10YR (2.5YR in some pedons), value of 3 to 6, and chroma of 4 to 8.
Mottles (where present)--shades of red, brown, and yellow
Texture (fine-earth fraction)--loam, sandy clay loam, or clay loam
Clay content--18 to 35 percent
BC horizon (where present):
Color--hue of 2.5YR to 10YR, value of 3 to 6, chroma of 3 to 8, or is variegated in shades of these colors
Texture (fine-earth fraction)--sandy loam, fine sandy loam, loam, or sandy clay loam
Clay content--12 to 35 percent
C horizon:
Color--hue of 5YR to 10YR, value of 3 to 6, chroma of 3 to 8, or is variegated in shades of these colors
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam
Clay content--10 to 27 percent
Cr layer:
Bedrock kind--soft, high-grade metamorphic rock such as mica gneiss, mica schist, amphibolite gneiss, and greenstone
Bedrock hardness--extremely weakly cemented to moderately cemented
Fracture interval--greater than 4 inches
Excavation difficulty--low to high
R layer (where present):
Bedrock kind--hard, high-grade metamorphic rock such as biotite gneiss, amphibolite gneiss, and greenstone
Bedrock hardness--strongly cemented to indurated
Fracture interval--greater than 4 inches
Excavation difficulty--very high or extremely high
COMPETING SERIES: See Remarks.
Bellspur soils--moderately deep to bedrock
Cashiers soils--very deep to bedrock
GEOGRAPHIC SETTING:
Landscape: Mountains, plateaus
Landform: Mountain slopes, ridges, escarpments
Geomorphic Component: Mountain top, mountain flank, interfluves, side slopes, head slopes
Hillslope Profile Position: Summits, shoulders, back slopes
Parent Material: Residuum from felsic to mafic high-grade metamorphic rock
Slope: 2 to 95 percent
Elevation Range: 2600 to 3500 feet in unshaded areas, 1600 to 3500 feet in cool shaded areas (coves, north and northeast slopes)
Frost Free Period: 155 to 195 days
Mean Annual Air Temperature: 52 to 57 degrees F.
Mean Annual Precipitation: 40 to 65 inches
GEOGRAPHICALLY ASSOCIATED SOILS:
Bellspur soils--moderately deep to soft bedrock
Cowee soils--contain less mica
Cullasaja soils--very deep to bedrock and contain less mica
Edneytown soils--very deep to bedrock and contain less mica
Evard soils--very deep to bedrock and contain less mica
Pigeonroost soils--contain less mica
Porters soils--deep to hard bedrock and contain less mica
Saunook soils--formed in colluvium and are very deep
Thunder soils--formed in colluvium and are very deep
Trimont soils--very deep to bedrock and contain less mica
Tusquitee soils--formed in colluvium, are very deep, and contain less mica
Widgett soils--moderately deep to hard bedrock, have more than 35 percent rock fragments, and contain less mica
DRAINAGE AND PERMEABILITY:
Agricultural Drainage Class: Well drained
Permeability: 2.0 to 6.0 inches per hour in the A horizon, 0.6 to 2.0 in the B horizon, 2.0 to 6.0 in the C horizon
Internal Free Water Occurrence: Very deep
Index Surface Runoff: Low to high
USE AND VEGETATION:
Major Uses: Hayland, pasture, and woodland
Dominant Vegetation:
Where wooded--yellow poplar, eastern white pine, Virginia pine, northern red oak, white oak, chestnut oak, post oak, hickory, black gum, red maple, black locust. Understory-dogwood, rhododendron, mountain laurel.
Where cultivated--cabbage, corn, small grains.
DISTRIBUTION AND EXTENT:
Distribution: Virginia
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia.
SERIES ESTABLISHED: Patrick County, Virginia, 2008.
REMARKS: Kibler soils were previously mapped as Edneytown soils. Few faint clay films in the B horizon indicate translocation of clay has occurred; however, laboratory data does not support an argillic horizon. Kibler soils have a dark surface that is too thin for an Umbric epipedon. It is anticipated once the current Humudepts/Dystrudepts taxonomy proposal is approved, Kibler soils will be reclassified as Humic Dystrudepts.
Diagnostic horizons and soil characteristics recognized in this pedon are:
Ochric epipedon--the zone from 0 to 8 inches (A horizon)
Cambic horizon--the zone from 8 to 32 inches (Bt and BCt horizons)
Paralithic contact--54 inches (upper boundary of the Cr layer)
Paralithic materials--32 to 54 inches (Cr layer)
Series control section--the zone from 0 to 56 inches
ADDITIONAL DATA: Characterization data are available from NRCS-Soil Survey Laboratory, Lincoln, NE (Lab Pedon Number: 99P0446; User Pedon ID: 99VA141009).
Database Information:
Data Map Unit ID: 533847
Pedon Record ID: 265949
User Pedon ID: VA141_Kibler_OSD_grl