LOCATION JIMTOWN OH
Established Series
Rev. STP-ELM
05/2011
JIMTOWN SERIES
The Jimtown series consists of very deep, somewhat poorly drained soils formed in outwash deposits on stream terraces, outwash terraces, outwash plains, and beach ridges. Permeability is moderate in the solum and moderate or moderately rapid in the substratum. Slope ranges from 0 to 6 percent. Mean annual temperature is about 50 degrees F. Mean annual precipitation is about 38 inches.
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Aeric Endoaqualfs
TYPICAL PEDON: Jimtown loam, 0 to 2 percent slopes, in a cultivated field, at an elevation of about 780 feet above msl. (Colors are for moist soil unless otherwise stated.)
Ap -- 0 to 10 inches; brown (10YR 4/3) loam, light brownish gray (10YR 6/2) dry; moderate medium and fine granular structure; friable; many roots; strongly acid; abrupt smooth boundary. (6 to 12 inches thick.)
Bt -- 10 to 20 inches; brown (10YR 5/3) loam; weak medium and fine prismatic structure parting to moderate medium platy; friable; few roots; few faint light brownish gray (10YR 6/2) clay films on faces of peds; many faint grayish brown (10YR 5/2) areas of iron depleted coatings on faces of peds; common medium faint grayish brown (10YR 5/2) areas of iron depletion in the matrix; common medium distinct yellowish brown (10YR 5/6 and 5/8) soft masses of iron accumulation in the matrix; few worm casts; very strongly acid; clear wavy boundary.
Btg1 -- 20 to 26 inches; grayish brown (10YR 5/2) loam; weak medium and fine subangular blocky structure; firm; common faint light brownish gray (10YR 6/2) clay films bridging sand grains; many medium prominent strong brown (7.5YR 5/6) and few fine prominent strong brown (7.5YR 5/8) and yellowish red (5YR 4/6) soft masses of iron accumulation in the matrix; few iron and manganese concretions; about 5 percent rock fragments; very strongly acid; abrupt smooth boundary.
Btg2 -- 26 to 31 inches; light brownish gray (10YR 6/2) gravelly loam; weak medium and fine subangular blocky structure; firm; common faint clay films bridging sand grains; few fine prominent reddish brown (5YR 4/3) and few fine prominent yellowish brown (10YR 5/6) soft masses of iron accumulation in the matrix; about 20 percent rock fragments; strongly acid; abrupt smooth boundary. (Combined thickness of the Bt and Btg horizons is 15 to 35.)
BCtg -- 31 to 37 inches; grayish brown (10YR 5/2) very gravelly loam; weak coarse subangular blocky structure; firm; few faint clay films bridging sand grains; common fine distinct yellowish brown (10YR 5/6) and few fine prominent reddish brown (5YR 4/3) soft masses of iron accumulation in the matrix; about 50 percent rock fragments; strongly acid; abrupt smooth boundary. (0 to 25 inches thick.)
C1 -- 37 to 42 inches; brown (10YR 5/3) sandy loam; massive; very friable; common medium faint light brownish gray (10YR 6/2) areas of iron depletion in the matrix; few fine distinct yellowish brown (10YR 5/6) soft masses of iron accumulation in the matrix; moderately acid; abrupt smooth boundary.
C2 -- 42 to 49 inches; grayish brown (10YR 5/2) gravelly loamy sand; single grain; loose; about 20 percent rock fragments; neutral; abrupt smooth boundary.
C3 -- 49 to 60 inches; brown (10YR 5/3) gravelly loamy sand; single grain; loose; about 25 percent rock fragments; neutral.
TYPE LOCATION: Lorain County, Ohio, Carlisle Township, about 2 miles southwest of Elyria; 500 feet east of West Ridge Road, 500 feet south of Albrecht Road; T. 5 N., R. 17 W.; USGS Oberlin, Ohio topographic quadrangle; Latitude 41 degrees, 21 minutes, 00 seconds N. and Longitude 82 degrees, 09 minutes, 10 seconds W. NAD 1927.
RANGE IN CHARACTERISTICS: Depth to the base of the argillic horizon ranges from 25 to 46 inches. Thickness of the solum ranges from 25 to 54 inches. Rock fragments are dominantly sandstone and shale, with a significant portion of igneous pebbles and cobbles. The particle size control section averages 18 to 27 percent clay and 20 to 55 percent sand.
The Ap horizon has hue of 10YR, value of 3 to 5 (6 or more dry) and chroma of 1 to 3. Some pedons have an A horizon up to 5 inches thick that has value of 2 or 3 (4 or 5 dry) and chroma of 1 or 2. Textures are loam, silt loam, sandy loam, or their gravelly analogues. Rock fragment content ranges from 0 to 25 percent. Reaction ranges from very strongly acid to neutral.
Some pedons have an E horizon up to 8 inches thick that has hue of 10YR or 2.5Y, value of 5 or 6 (7 or 8 dry), and chroma of 1 or 2. Texture and reaction are like the A horizon.
Some pedons have a BE horizon.
The Bt and Btg horizons have hue of 10YR, 2.5Y, or 5Y, value of 4 to 6, and chroma of 1 to 6. Textures typically are loam, sandy clay loam, clay loam, or their gravelly and very gravelly analogues. Some pedons have horizons of fine sandy loam or sandy loam. Some pedons have horizons of silt loam or silty clay loam to a depth of 24 inches. Rock fragment content ranges from 0 to 30 percent in the upper part and from 5 to 60 percent in the lower part. Reaction ranges from very strongly acid to slightly acid.
The BCtg, BCt, BCg, and BC horizons have hue of 10YR, or 2.5Y, value of 4 to 6, and chroma of 1 to 6. Textures are loam, sandy loam, coarse sandy loam, loamy sand, and their gravelly, very gravelly, and extremely gravelly analogues. Rock fragment content averages between 15 and 50 percent but ranges from 0 to 75 percent. Reaction ranges from strongly acid to slightly acid.
The C horizon has hue of 10YR, 2.5Y, 5Y, or is neutral, value of 4 to 6, and chroma of 0 to 6. Textures are loam, sandy loam, coarse sandy loam, loamy sand, loamy coarse sand, or sand, coarse sand and their gravelly, very gravelly, and extremely gravelly analogues. Rock fragment content averages between 15 and 60 percent, but ranges from 0 to 85 percent. Reaction ranges from strongly acid to neutral. Some pedons range to moderately alkaline below 60 inches. Some pedons have carbonates in the lower part.
COMPETING SERIES: These are the
Angola,
Appleton, Ayshire,
Burdett,
Crawleyville,
Darien,
Digby,
Mitiwanga,
Mongle,
Nuhi,
Ovid,
Shadeland,
Sleeth, and
Whitaker series. Angola, Mitiwanga, Nuhi, and Shadeland soils have a lithic contact before 40 inches. Appleton, Darien, and Ovid soils have sola shallower than 54 inches and are formed in till. Ayshire, Crawleyville, and Whitaker soils have less rock fragments in the subsoil and substratum. Burdett soils have higher clay content in the substratum. Digby and Sleeth soils are more alkaline in the substratum. Mongle soils have a higher mean annual temperature.
GEOGRAPHIC SETTING: Jimtown soils formed in Wisconsinan Age stratified outwash deposits on stream terraces, outwash terraces, outwash plains, and beach ridges. Slope ranges from 0 to 6 percent. Mean annual precipitation ranges from 29 to 45, mean annual temperature ranges from 48 to 56 degrees F, frost free days range from 110 to 198 days, and elevation ranges from 700 to 1300.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Bogart,
Chili,
Damascus,
Fitchville,
Mahoning, and
Wadsworth soils. The well drained Chili and moderately well drained Bogart soils on higher landscape positions and poorly drained Damascus soils on lower landscape positions and depressions are in a toposequence with Jimtown soils. The somewhat poorly drained Fitchville soils formed in silty lacustrine sediments and are on similar positions. The somewhat poorly drained. Mahoning and Wadsworth soils are adjacent soils on till plains.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained. The depth to an intermittent apparent water table is .5 to 1 foot between October and June in most years. Permeability is moderate or moderately rapid in the solum and in the underlying material. Permeability is slow in the lower part of the series control section in the till substratum phase. The potential for surface runoff is low.
USE AND VEGETATION: Soils are used for row crops, pasture, and woodland. Native vegetation is mixed hardwoods where ash, elm, sugar maple, and beech are dominant species.
DISTRIBUTION AND EXTENT: Northeastern and central Ohio. MLRA's 111, 124, 139, and 140. The series is of moderate extent, about 57,000 acres.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Amherst, Massachusetts.
SERIES ESTABLISHED: Columbiana County, Ohio, 1965.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
a) Ochric epipedon - 0 to 10 inches (Ap);
b) Argillic horizon - 10 to 31 inches (Bt, Btg1, Btg2);
c) aquic conditions - 10 to 60 inches.
A till substratum phase with clay loam or silty clay loam textures is recognized. It will need to be evaluated during MLRA update activities.
ADDITIONAL DATA: Refer to pedons CO-156, sample numbers 27801-27811; LR-29, sample numbers 16495-16502; ST-4, sample numbers 17243-17250; and WN-60 for characterization data; samples analyzed by the Ohio State University Soil Characterization Laboratory, Columbus, Ohio.
National Cooperative Soil Survey
U.S.A.