LOCATION ALONEMILL VATentative Series
TAXONOMIC CLASS: Coarse-loamy, siliceous, superactive, mesic Dystric Fluventic Eutrudepts
TYPICAL PEDON: Alonemill fine sandy loam--on a smooth 1 percent slope under corn stubble. (Color is for moist soil.)
Ap--0 to 10 inches; dark brown (7.5YR 3/4) fine sandy loam, weak fine granular structure; friable, slightly sticky, slightly plastic; comm fine and medium roots; neutral; abrupt smooth boundary.
Bw1--10 to 25 inches; dark brown (7.5YR 3/4) fine sandy loam; weak fine subangular blocky structure; friable, slightly sticky, slightly plastic; few fine roots; neutral; diffuse boundary.
Bw2--25 to 72 inches; dark brown (7.5YR 4/4) fine sandy loam; weak fine subangular blocky structure; friable, slightly sticky, slightly plastic; few fine roots; neutral.
TYPE LOCATION: Rockbridge County, Virginia; Lexington topographic quadrangle, about 1.8 miles northwest 300 degrees of the junction of Highways VA-39 and U.S. 11 and 1.8 miles northwest 370 degrees of the junction of Highways VA-645 and VA-39.
RANGE IN CHARACTERISTICS: Thickness of the solum is more than 40 inches. Rock fragments, mostly gravel, range from 0 to 15 percent throughout. The soil ranges from moderately acid through neutral throughout.
The A horizon has hue of 7.5YR or 10YR, value of 3 or 4, and chroma of 2 through 4. Texture is sandy loam, fine sandy loam, or loam.
The Ap horizon has hue of 7.5YR or 10YR, value of 3 through 5, and chroma of 3 or 4. Texture is sandy loam, fine sandy loam, or loam.
The Bw horizon has hue of 7.5YR or 10YR, value of 3 through 6, and chroma of 3 through 6. Texture is sandy loam, fine sandy loam, or loam.
The C horizon, where present, has hue of 7.5YR or 10YR, value of 4 through 6, and chroma of 3 through 6. Texture is loamy sand, loamy fine sand, sandy loam, fine sandy loam, or loam. Many pedons are stratified.
COMPETING SERIES: There are no other known series in this family.
GEOGRAPHIC SETTING: Alonemill soils are on flood plains. Slope range from 0 to 4 percent slopes. The soil formed in mixed alluvium from sandstone, siltstone, limestone, and shale. The mean annual temperature ranges from 53 to 57 degrees F., and mean annual precipitation ranges from 32 to 48 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Alonzville, Berks, Carvens, Coursey, Derroc, Frederick, Gilpin, Groseclose, Hagerstown, Litz, Moomaw, and Weikert soils. The Alonzville, Carvens, and Coursey have argillic horizons and are on stream terraces. Berks and Weikert soils have bedrock within 40 inches, contain more coarse fragments in the control section and are on uplands. Moomaw soils have a fragipan layer, an argillic horizons and are on stream terraces. Frederick, Groseclose, and Hagerstown soils have argillic horizons and are on uplands.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is slow. Permeability is moderately rapid.
USE AND VEGETATION: Most areas are used for cultivated crops, hay, and pasture. Small scattered areas are in woodland. Crops include corn, small grain, hay, and garden vegetables.
DISTRIBUTION AND EXTENT: The northern and southern Appalachian ridges and valleys of Virginia and possible West Virginia and Kentucky.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES PROPOSED: Rockbridge County, Virginia. 1990.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon, the zone from 0 to 10 inches (Ap horizon).
Cambic horizon, the zone from 0 to 10 to 72 inches (Bw horizon).
Note: CEC class based on information from similar soils.
The 1/2006 revision updates this soil to the 9th Edition of the Keys to Soil Taxonomy (2003). The CEC activity class placement is based on similar soils and not on laboratory data. Class placement may be revised in the future when laboratory data becomes available.
Competing series, pedon description (including horizon nomenclature and/or descriptive terms), and other sections on the OSD were not revised.
Previous revision date 10/92
SIR= VA0372
MLRA= 125, 128, 147