Soil Survey of Lincoln County, West Virginia - Soil Data Mart - US ...

Soil Survey of Lincoln County, West Virginia
series. A pedon, a small three-dimensional area of soil, that is typical of the series in
the survey area is described. The detailed description of each soil horizon follows
standards in the “Soil Survey Manual” (Soil Survey Division Staff 1993). Many of the
technical terms used in the descriptions are defined in “Soil Taxonomy” (Soil Survey
Staff 1999) and in “Keys to Soil Taxonomy” (Soil Survey Staff 2003). Unless otherwise
indicated, colors in the descriptions are for moist soil. Following the pedon description
is the range of important characteristics of the soils in the series.
Allegheny Series
Depth class: Deep
Drainage class: Well drained
Permeability: Moderate
Landscape position: On high strath terraces and alluvial fans along the larger
streams; throughout the county
Parent material: Alluvium
Slope range: 3 to 15 percent
Classification: Fine-loamy, mixed, semiactive, mesic Typic Hapludults
Representative Pedon
Allegheny loam, in a pastured area of Allegheny loam, bedrock substratum, 8 to
15 percent slopes, in Cabell County, West Virginia; about 200 yards southwest of
U.S. Route 60 and about 335 yards east of West Virginia Route 60/39; USGS
Hurricane topographic quadrangle; lat. 38 degrees 25 minutes 34 seconds N. and
long. 82 degrees 06 minutes 06 seconds W.
A—0 to 8 inches; dark grayish brown (10YR 4/2) loam; weak fine and medium
granular structure; very friable; many fine and medium roots; moderately acid;
clear wavy boundary.
Bt1—8 to 14 inches; yellowish brown (10YR 5/6) loam; weak fine and medium
subangular blocky structure; friable; many fine and medium roots; few distinct clay
films on faces of peds; moderately acid; clear wavy boundary.
Bt2—14 to 30 inches; strong brown (7.5YR 5/6) clay loam; moderate medium
subangular blocky structure; friable; common fine roots; common distinct clay
films on faces of peds; strongly acid; clear wavy boundary.
BC—30 to 36 inches; strong brown (7.5YR 5/6) sandy loam; weak medium
subangular blocky structure; friable; common fine roots; very strongly acid;
gradual wavy boundary.
C—36 to 50 inches; strong brown (7.5YR 5/6) sandy loam; massive; friable; extremely
acid; clear wavy boundary.
R—50 inches; shale and siltstone bedrock.
Range in Characteristics
Thickness of the solum: 30 to 60 inches
Depth to bedrock: 40 to 60 inches
Reaction: Extremely acid to moderately acid throughout
Content of rock fragments: 0 to 10 percent throughout the solum; 10 to 30 percent in
the substratum
A horizon:
Hue—7.5YR to 2.5Y
Value—4 or 5
Chroma—2 to 4
Texture—loam, fine sandy loam, silt loam
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