LOCATION RIGLEY KY+OH VA
Established Series
RDJ, SLH/Rev. MDJ
04/2015
RIGLEY SERIES
TAXONOMIC CLASS: Coarse-loamy, mixed, active, mesic Typic Hapludults
TYPICAL PEDON: Rigley fine sandy loam, on an east facing steep side slope in second growth woods. (Colors are for moist soil unless otherwise indicated.)
Oi--0 to 1 cm (0 to 0.5 inch); slightly decomposed leaf litter. (0 to 3 cm (0 to 1 inch thick)
Ap--1 to 13 cm (0.5 to 5 inches); dark grayish brown (10YR 4/2) fine sandy loam; moderate medium granular structure; very friable; many fine roots; 10 percent sandstone rock fragments; very strongly acid; clear smooth boundary. (7 to 25 cm (3 to 10 inches thick)
BA--13 to 23 cm (5 to 9 inches); dark yellowish brown (10YR 4/4) fine sandy loam; weak fine subangular blocky structure; very friable; many fine roots; 10 percent sandstone rock fragments and a few small pebbles of quartzite; very strongly acid; clear smooth boundary. (0 to 25 cm (0 to 12 inches thick)
Bt1--23 to 38 cm (9 to 15 inches); brown (7.5YR 4/4) gravelly sandy loam; weak coarse subangular blocky structure parting to weak fine and medium subangular blocky; very friable; common fine roots; common distinct brown (7.5YR 4/4) clay films on faces of peds; 15 percent sandstone rock fragments; very strongly acid; gradual smooth boundary. (10 to 66 cm (4 to 26 inches thick)
Bt2--38 to 99 cm (15 to 39 inches); brown (7.5YR 4/4) gravelly sandy loam; moderate coarse subangular blocky structure parting to weak fine and medium subangular blocky; friable; few fine roots; common distinct brown (7.5YR 4/4) clay films on faces of peds; 20 percent sandstone rock fragments; very strongly acid; gradual smooth boundary. (13 to 61 cm (5 to 24 inches thick)
Bt3--99 to 114 cm (39 to 45 inches); yellowish brown (10YR 5/4) gravelly sandy loam; weak medium subangular blocky structure; friable; common distinct brown (7.5YR 4/4) clay films on faces of peds; few fine faint strong brown (7.5YR 5/6) masses of iron and manganese accumulation; few fine prominent black (10YR 2/1) iron and manganese concretions; 20 percent sandstone rock fragments; very strongly acid; gradual smooth boundary. (13 to 33 cm (5 to 13 inches thick)
C--114 to 140 cm (45 to 55 inches); yellowish brown (10YR 5/4) gravelly sandy loam; massive; friable; common medium distinct light brownish gray (10YR 6/2) iron depletions; few fine prominent black (10YR 2/1) iron and manganese concretions; 25 percent sandstone rock fragments; very strongly acid. (7 to 56 cm (3 to 22 inches thick)
TYPE LOCATION:
County: Rowan
State: Kentucky
USGS Quadrangle: Haldeman
Latitude (Decimal Degrees, NAD 83): 38.14092N
Longitude (Decimal Degrees, NAD 83): -83.30179W
Directions to the pedon: About 10 miles east of Morehead on an east facing side slope along Craney Creek, 1.5 miles north of its confluence with Wagner Fork, 3 miles south of Elliottville.
RANGE IN CHARACTERISTICS:
Depth to the top of the Argillic: 15 to 38 cm (6 to 15 inches)
Depth to the base of the Argillic: 81 to 155 cm (32 to 61 inches)
Solum thickness: 107 to 155 (42 to 61 inches)
Depth to Bedrock: 178 to 203 cm (70 to 80 inches)
Depth Class: Very deep
Depth to Seasonally High Water Table: 114 to 160 cm (45 to 63 inches)
Rock fragment content: 3 to 30 percent, by volume, in the Ap horizon, 5 to 10 percent, by volume, in the BA horizon, 3 to 35 percent, by volume, in the Bt horizons, 5 to 70 percent, by volume, in the C horizon
Soil Reaction: Extremely acid through strongly acid throughout, except in the A horizon which ranges from very strongly acid through moderately acid
Fine-Earth Fraction: Averages 6 to 18 percent clay and more than 30 percent sand in the particle size control section
Range of Individual Horizons
Ap or A horizon:
Color--hue of 7.5YR or 10YR, value of 4 through 6, and chroma of 2 through 4
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam
BA horizon:
Color--hue of 7.5YR or 10YR, value of 3 through 6, and chroma of 3 through 6
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam
Bt horizon:
Color--hue of 7.5YR or 10YR, value of 4 through 6, and chroma of 4 through 8
Texture (fine-earth fraction)--sandy loam or loam
Redoximorphic features--Some pedons have iron masses in shades of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray in the lower part
Some pedons have 2B horizons below 40 inches formed in residuum from shale with matrix and redoximorphic features with colors in shades of red, brown or gray.
C horizon:
Color--hue of 7.5YR or 10YR, value of 4 through 6, and chroma of 4 through 8
Texture (fine-earth fraction)--sandy loam, loam, sandy clay loam, or clay loam
Some pedons have a 2C horizon formed in residuum from shale with matrix and redoximorphic features with colors in shades of red, brown or gray.
COMPETING SERIES:
Dunellen soils--formed in stratified alluvium on outwash plains and stream terraces and allow redder hues in the subsoil and substratum
Germano soils--formed in residuum and are less than 102 centimeters to bedrock
Lansdale soils--formed in residuum and have a solum less than 102 centimeters thick
GEOGRAPHIC SETTING:
MLRA(s) using this series: 124 (Western Allegheny Plateau), 125 (Cumberland Plateau and Mountains), 126 (Central Allegheny Plateau), 128 (Southern Appalachian Ridges and Valleys), 147 (Northern Appalachian Ridges and Valleys)
Landscape: Hills
Landform: Hill and hillside
Geomorphic Component: Backslope, bench, footslope, toeslope
Parent Material Origin: Sandstone and siltstone
Parent Material Kind: Colluvium
Slope: 2 to 60 percent
Elevation: 288 to 409 meters (945 to 1342 feet)
Frost free period: 158 to 178 days
Mean Annual Air Temperature: 10 to 13 degrees C. (50 to 55 degrees F.)
Mean Annual Precipitation: 1016 to 1270 millimeters (40 to 50 inches)
GEOGRAPHICALLY ASSOCIATED SOILS:
Cranston soils--occur on similar landscape positions in areas that have higher base saturation and more silt in the subsoil
Dekalb soils--occur on shoulders and backslopes where depth to sandstone bedrock is less than 102 centimeters
Gilpin soils--occur on crests of ridges, shoulders, and backslopes where depth to bedrock is less than 102 centimeters
Lily soils--occur on crests of ridges, shoulders, and backslopes where depth to bedrock is less than 102 centimeters
Shelocta soils--occur on similar landscape positions in areas that have more clay and silt in the subsoil
Steinsburg soils--occur on shoulders and backslopes where depth to sandstone bedrock is less than 102 centimeters
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage Class (Agricultural): Well
Internal Free Water Occurrence: Deep (1.0 to 1.5 meters), common (present 3 to 6 months)
Index Surface Runoff: Low to moderate
Saturated Hydraulic Conductivity Class: Moderately high
Permeability Class: Moderately rapid
Shrink-swell Potential: Low
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
USE AND VEGETATION:
Major Uses: Woodland, pasture, cropland
Dominant Vegetation: Where cultivated--Corn, wheat, and oats. Where wooded--black oak, northern red oak, white oak, yellow poplar, Virginia pine, white pine, and shortleaf pine
DISTRIBUTION AND EXTENT:
Distribution: Kentucky, Ohio, and Virginia
Extent: Large, approximately 285,000 acres at the time of this revision
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: MORGANTOWN, WEST VIRGINIA
SERIES ESTABLISHED: Rowan County, Kentucky 1971.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon--the zone from 1 to 23 cm (.5 to 9 inches) (Ap, BA horizons)
Argillic horizon--the zone from 23 to 114 cm (9 to 45 inches) (Bt1, Bt2, Bt3 horizons)
This edit updates the previous format to the current semi-tabular format and updates the Range of Individual Horizons, RANGE IN CHARACTERISTICS, COMPETING SERIES, GEOGRAPHIC SETTING, GEOGRAPHICALLY ASSOCIATED SOILS, USE AND VEGETATION, DISTRIBUTION AND EXTENT, DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY, and REMARKS sections.
Previous revisions: 04/2001-JHN, SJH, DBD, ART
ADDITIONAL DATA: Characterization data is available from the NSSL for the following pedons:
The University of Kentucky pedons are: 04KY-025-001, 65KY-125-068, 65KY-125-070, 67KY-205-005, 81KY-109-004, 95KY-119-003
The Ohio State University pedons are: 1978-OH019-029, 1979-OH079-014
National Cooperative Soil Survey
U.S.A.