LOCATION LAMINGTON PA+NJEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, semiactive, mesic Typic Fragiaquults
TYPICAL PEDON: Lamington silt loam - cropland. (Colors are for moist soil unless otherwise noted.)
Ap--0 to 8 inches; dark grayish brown (10YR 4/2) silt loam; weak fine granular structure; friable, slightly sticky, slightly plastic; many fine roots; moderately acid; abrupt wavy boundary. (7 to 10 inches thick)
BE--8 to 11 inches; dark reddish gray (5YR 4/2) silt loam; weak thick platy structure parting to weak very fine subangular blocky structure; friable, slightly sticky slightly plastic; common fine prominent red (2.5YR 4/6) masses of oxidized iron; 5 percent gravel and cobbles; moderately acid; clear wavy boundary. (0 to 5 inches thick)
Btg--11 to 17 inches; pinkish gray (5YR 7/2) silty clay loam; moderate medium subangular blocky structure; firm, sticky, plastic; common clay films on faces of peds; common fine prominent red (10R 4/6) and brown (7.5YR 5/4) masses of oxidized iron on faces of peds; 5 percent gravel and cobbles; strongly acid; abrupt wavy boundary. (4 to 15 inches thick)
Btxg1--17 to 32 inches; reddish gray (5YR 5/2) clay loam; weak coarse prismatic structure parting to moderate thick platy and moderate medium subangular blocky; very firm, brittle, sticky, slightly plastic; few clay films on faces of peds; few prominent black (N 2/0) manganese coatings on faces of peds; common medium prominent light gray (N 7/0)iron depletion and strong brown (7.5YR 5/6) masses of oxidizes iron on faces of peds; 10 percent gravel and cobbles; strongly acid; gradual wavy boundary. (10 to 25 inches thick)
Btxg2--32 to 46 inches; pinkish gray (5YR 6/2) cobbly loam; weak very coarse prismatic structure parting to weak coarse platy and weak medium subangular blocky; firm, sticky, slightly plastic; few distinct clay films on faces of peds; few prominent black (N 2/0)manganese coatings and concretions; many coarse prominent strong brown (7.5YR 5/6) masses of oxidized iron and reddish brown (5YR 4/3)ironmanganese masses on faces of peds; 20 percent gravel and cobbles; very strongly acid; gradual wavy boundary. (0 to 20 inches thick)
2C--46 to 60 inches; stratified sand and gravel.
TYPE LOCATION: Adams County, Pennsylvania; Butler Township, 1 1/2 miles south of Biglerville on the east side of Pennsylvania Route 34 near Conewago Creek.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 40 to 60 inches and the base of the fragipan is below 40 inches. Depth to bedrock is 60 inches or more. Depth to the fragipan ranges from 15 to 30 inches. The upper part of the solum ranges from 0 to 15 percent, by volume, of gravels and cobbles and the lower part from 0 to 25 percent. Rock fragments in the substratum range from 0 to 90 percent. The soil is strongly or very strongly acid, except where limed.
The A horizon has hue of 5YR through 10YR, value of 4 through 6, and chroma of 1 or 2. Texture is silt loam or loam in the fine-earth fraction. Some pedons have silt loam BA or EB horizons up to 7 inches thick.
The Btg horizon has hue of 5YR through 10YR, value of 4 through 7 and chroma of 1 or 2 with high chroma mottles. Texture is loam, silt loam, clay loam or silty clay loam in the fine-earth fraction.
The Btxg horizon has hue of 2.5YR through 7.5YR, value of 4 through 6, and chroma of 1 through 8 with high chroma mottles. Texture is clay loam, loam or silt loam in the fine-earth fraction.
The 2C horizon has hue of 10YR to 2.5YR, value of 4 to 6, and chroma of 1 to 8. It is stratified and ranges from silty clay loam or silt loam to sand and gravel.
COMPETING SERIES:
Shelmadine is the only series in the same family. Shelmadine is a poorly drained soil formed in glacial or periglacial material with angular or flat rock fragments.
The
Andover,
Cokesbury and
Nolo are soils in closely related families. Andover and Cokesbury soils are 10YR or yellowier within the solum. Nolo soils have angular or flat rock fragments.
GEOGRAPHIC SETTING: Lamington soils are on nearly level stream terraces which are seldom flooded. They formed in old sediments derived largely from red and gray Triassic shale and sandstone. The climate is humid and temperate. Average annual temperature ranges from 50 to 55 degrees F., average annual precipitation ranges from 40 to 48 inches, and a growing season of 170 to 200 days.
GEOGRAPHICALLY ASSOCIATED SOILS: The Lamington soils are a member of a drainage sequence which includes the well drained Birdsboro and the moderately well drained Raritan soils. Bowmansville and Rowland soils are on nearby flood plains. Both of these soils lack fragipans and are frequently flooded.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Poorly drained. Runoff is medium to low. Saturated hydraulic conductivity is moderately low to moderately high.
USE AND VEGETATION: Most areas are cleared and are in pasture or cropland. The native vegetation was mixed hardwoods, mostly oaks.
DISTRIBUTION AND EXTENT: Southeastern Pennsylvania, New Jersey, and Maryland. The series is inextensive; the total area is about 5,000 acres.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Huntingdon and Somerset Counties, New Jersey, 1937.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
1. Ochric epipedon - the zone from the surface of the soil to a depth of about 8 inches (Ap horizon).
3. Argillic horizon - the zone from about 11 inches to a depth of about 46 inches (Btg, Btxg1 and Btxg2 horizons).
4. Fragipan - the zone from 17 inches to a depth of about 46 inches (Btxg1 and Btxg2 horizons).
2008 Pedon description and competing and closely related series updated