LOCATION JESSIETOWN KYEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, semiactive, mesic Typic Hapludults
TYPICAL PEDON: Jessietown silt loam - on a 2 percent slightly convex upland ridge in corn at 810 feet elevation. (Colors are for moist soil unless otherwise stated.).
Ap--0 to 8 inches; brown (10YR 4/3) silt loam; moderate medium granular structure. very friable; few fine roots; strongly acid; clear smooth boundary. (4 to 10 inches thick).
Bt1--8 to 22 inches; brown (7.5YR 5/4) silty clay loam; moderate medium subangular blocky structure; friable; few fine roots; few clay films on faces of peds; strongly acid; clear smooth boundary.
Bt2--22 to 30 inches; yellowish brown (10YR 5/4) silty clay loam; moderate fine and medium angular blocky structure; friable; few to common brown (7.5YR 5/4) clay films on faces of peds; strongly acid; clear smooth boundary. (Combined thickness of the Bt horizon is 10 to 36 inches).
2BC--30 to 34 inches; yellowish brown (10YR 5/4) channery silty clay; few medium distinct brown (7.5YR 5/6) mottles; weak fine angular blocky and weak fine platy structure; friable; 15 percent shale fragments; very strongly acid; abrupt smooth boundary. (0 to 10 inches thick)
2Cr--34 to 36 inches; reddish brown (5YR 5/4) weathered shale with black (10YR 2/1) interior; few fine roots along fracture faces of rock 5 to 10 inches apart; very strongly acid; abrupt wavy boundary (0 to 8 inches thick)
2R--36 inches; hard black (10YR 2/1) fissile shale.
TYPE LOCATION: Marion County, Kentucky, about 7.5 miles southeast of Lebanon; 6,000 feet southeast of the junction of KY Highway 49 and KY Highway 1157; on Bradfordsville USGS Quadrangle, east about 2,162,350 feet and north about 418,500 feet by the Kentucky Coordinate Grid System.
RANGE IN CHARACTERISTICS: Thickness of the solum and depth to hard bedrock ranges from 20 to 40 inches. Rock fragments range from 0 to 5 percent in the upper solum and from few to 35 percent in the lower solum and
substratum. Fragments are mostly weathered and unweathered black, fissile, carbonaceous shale. Reaction ranges from strongly acid to extremely acid throughout the profile. Where limed, the upper sola ranges to neutral.
The Ap horizon has hue of 7.5YR to 2.5Y, value of 3 to 5 and chroma of 2 to 4, but to a depth of 7 inches after mixing the Ap has value moist of 4 or more. Texture is silt loam or silty clay loam.
The Bt horizon has hue of 5YR to 10YR, value of 4 to 6, and chroma of 4 to 8. It is silt loam or silty clay loam. In some pedons the Bt horizons has mottles in shades of brown, yellow, or red and in the lower part shades of gray.
The 2BC horizon has hue of 5YR to 10YR, value of 4 to 6.
The 2C horizon, if present, has colors and textures similar to the B horizon.
The 2Cr horizon has hue of 5YR to 10YR, value of 2 to 6, and chroma of 2 to 8. It is weathered shale.
The 2R horizon is hard fissile shale.
COMPETING SERIES: These are the Chillum, Fletcher, Greenbriar, Kurtz, Talleyville, Wernock, and Whitley series. Chillum soils have a thinner solum, Fletcher so11s formed in residuum weathered in phyllite, and Greenbriar soils formed in similar materials to the Jessietown soils but are more than 40 inches to hard bedrock. Kurtz soils formed over noncarbonaceous shale and siltstone and are more than 40 inches to bedrock. Talleyville soils have a thicker solum and formed in a silty mantle underlain by residuum weathered from igneous rock. Wernock soils formed in residuum weathered from interbedded sandstone, siltstone, or noncarbonaceous shale. Whitley soils have solum and depth to bedrock greater than 40 inches and are on stream terraces.
GEOGRAPHIC SETTING: Jessietown soils are on gently sloping to steep upland ridges, side slopes, and toe slopes. Slopes range from 2 to 30 percent. They formed in a thin mantle of silty material and residuum weathered from black carbonaceous fissile shale. Mean annual temperature ranges from 53 to 57 degrees F and the mean annual precipitation ranges from 40 to 49 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Greenbriar series and the Rohan, Colyer, Muse, Trappist, Tilsit, and Berea series. Rohan and Colyer soils have 35 percent or more rock fragments in the particle size control section and are shallow. Muse and Trappist soils have a clayey particle-size control section and Muse soils are deep. Tilsit soils are deep and have a fragipan. Berea soils are moderately well drained.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is medium to rapid. Permeability is moderate.
USE AND VEGETATION: Most areas are used for crops or pasture. Major crops grown are small grains, corn, soybeans, hay, and tobacco. Forests are mixed hardwoods of oak, maple, hickory, ash, gum, dogwood, beech, and pine.
DISTRIBUTION AND EXTENT: Jessietown soils are in the Knobs Region of Kentucky and possibly in southern Ohio and Pennsylvania. The area is estimated to be of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Marion County, Kentucky, 1986. Source of the name is a small community in southern Mar1on County.
REMARKS:Diagnostic horizons in the pedon are:
Ochric epipedon: 0 to 8 inches, Ap
Argillic horizon: 8 to 30 inches, Bt1, Bt2
Paralithic contact is at 34 inches.
Lithic contact is at 36 inches.