LOCATION VINCENT OH+WVEstablished Series
TAXONOMIC CLASS: Fine, mixed, active, mesic Oxyaquic Hapludalfs
TYPICAL PEDON: Vincent silt loam - in a cultivated field on a convex slope of about 6 percent at an elevation of about 800 feet. (Colors are for moist soil.)
Ap-- 0 to 10 inches; brown (10YR 4/3) silt loam, yellowish brown (10YR 5/4) dry; weak medium to coarse subangular blocky structure parting to weak fine granular; friable; many fine roots; slightly acid; abrupt smooth boundary. (6 to 14 inches thick)
Bt1-- 10 to 15 inches; brown (7.5YR 5/4) silty clay loam; moderate medium subangular blocky structure; firm; many fine roots; few distinct brown (10YR 4/3) organoargillans and; common distinct brown (7.5YR 5/4) clay films on the vertical and horizontal faces of peds; strongly acid; clear wavy boundary. (3 to 10 inches thick)
2Bt2-- 15 to 20 inches; reddish brown (5YR 4/4) silty clay; strong medium and coarse subangular blocky structure; firm; common fine roots; common faint reddish brown (5YR 5/4) clay films on the vertical and horizontal faces of peds; common medium prominent reddish yellow (7.5YR 6/6) masses of iron accumulation few medium black (N 2/0) masses of iron and manganese; very strongly acid; clear wavy boundary.
2Bt3-- 20 to 27 inches; reddish brown (5YR 4/4) silty clay; weak medium and coarse prismatic structure parting to moderate medium angular blocky; firm; common fine and medium roots; many distinct reddish brown (5YR 4/4) clay films on vertical and horizontal faces of peds; common distinct light gray (5YR 6/1) iron depletions on vertical and horizontal faces of peds; few distinct light gray (5YR 6/1) iron depletions in ped interiors; distinct yellowish red (5YR 5/8) iron accumulation on root channels and the interiors of pores; few medium prominent strong brown (7.5YR 4/6) masses of iron and manganese's accumulation few medium black (N 2/0) masses of iron and manganese; very strongly acid; abrupt wavy boundary.
2Bt4-- 27 to 36 inches; dark reddish brown (5YR 3/4) stratified silty clay and clay loam; moderate medium angular blocky structure; firm; few fine and medium roots; many distinct dark reddish brown (2.5YR 3/4) clay films on vertical and horizontal faces of peds; few distinct reddish gray (5YR 5/2) iron depletions on horizontal faces of peds; few medium distinct yellowish red (5YR 4/6) masses of iron and manganese accumulation; few medium black (N 2/0) masses of iron and manganese; 5 percent soft rounded sandstone rock fragments in loamy strata; very strongly acid; gradual wavy boundary.
2Bt5-- 36 to 46 inches; dark reddish brown (2.5YR 4/4) silty clay; moderate coarse angular blocky structure; firm; few fine and medium roots; many distinct dark reddish brown (5YR 3/3) clay films on vertical and horizontal faces of peds; few medium and coarse prominent strong brown (7.5YR 4/6) masses of iron and manganese accumulation; common medium black (N 2/0) masses of iron and manganese; strongly acid; gradual wavy boundary. (Combined thickness of the 2Bt horizons is 24 to 28 inches.)
2BC-- 46 to 59 inches; 85 percent dark reddish brown (2.5YR 3/4) and 15 percent reddish brown (5YR 4/4) silty clay loam; weak coarse angular blocky structure; firm; few very fine roots; few faint dark reddish brown (5YR 3/4) clay films on vertical faces of peds; many faint dark reddish brown (5YR 3/4) pressure faces and nonintersecting slickensides; common medium black (N 2/0) masses of iron and manganese; neutral; gradual wavy boundary. (0 to 15 inches thick)
2C1-- 59 to 67 inches; 80 percent dark reddish brown (2.5YR 3/4) and 20 percent dark reddish brown (5YR 4/4) silt loam; weak very coarse angular blocky structure; firm; few very fine roots; many medium black (N 2/0) masses of iron and manganese; effervescent; slightly alkaline; gradual wavy boundary.
2C2-- 67 to 84 inches; dark reddish brown (5YR 4/4) silty clay loam; massive; firm; many medium black (N 2/0) masses of iron and manganese.
TYPE LOCATION: Washington County, Ohio; Barlow Township; 7 miles west of Marietta, Ohio, on U.S. Highway 50A at Fleming; 1/4 mile west of junction of County Road 2; 1000 feet south of 50A along farm lane, 300 feet east of lane on old county experiment farm; SW1/4 of sec. 3, T. 3 N., R. 10 W. USGS Watertown, OH topographic quadrangle, lat. 39 degrees 23 minutes 22.54 seconds N., and long. 81 degrees 36 minutes 51.30 seconds W., NAD 27.
RANGE IN CHARACTERISTICS: Solum thickness is from 40 to 70 inches. A maximum of 20 inches of silty alluvium or loess over the lacustrine material is permitted. The solum is free or nearly free of coarse fragments and has a very low sand content, but the substratum may have up to 3 percent coarse fragments.
The Ap horizon has hue of 10YR or 5YR, value of 3 or 4 (6 or more dry), and chroma of 2 to 4. Some pedons have an A horizon 1 to 5 inches thick with hue of 7.5YR or 10YR, value of 2 to 4, and chroma of 1 to 3. An E horizon, if present, has hue of 7.5YR or 10YR, value of 4 to 6, and chroma of 2 to 4. The Ap horizon is silt loam or silty clay loam. It is neutral to strongly acid.
The Bt horizon has hue of 10YR, 7.5YR, or 5YR; value of 4 or 5; and chroma of 3 to 6. Texture is silt loam or silty clay loam. It is moderately acid to very strongly
acid.
The 2Bt horizon has hue of 5YR, 2.5YR, 10R (or 7.5Y in the upper part); value of 3 to 5; and chroma are 3 to 6. It is silty clay, clay, or silty clay loam. There is mottling in some pedons, including low-chroma mottles at a depth below the upper 10 inches of the argillic horizon. Structure is moderate or strong blocky and is arranged in weak to moderate medium to coarse prisms in some pedons. The 2Bt horizon is moderately acid to very strongly acid. The 2BC horizon is neutral to strongly acid.
The 2C horizon has hue of 2.5YR, 5YR, 7.5YR, or 10YR; value of 3 to 5; and chroma of 3 to 6. It is silty clay, silty clay loam, or clay that shows evidence of stratification and is laminated in some areas. It is moderately acid to mildly alkaline. Some pedons have free carbonates and have slight or strong effervescence.
COMPETING SERIES: These are the Alsup, Goodson, Gunlock, Losantville, Miamian, Morrisville, Shircliff, Shranka, and Useful series. Alsup and Goodson soils have a paralithic contact between 40 and 60 inches. Gunlock soils have a brittle Btx horizon and are formed in chertt Losantville and Morrisville soils have free carbonates between 10 and 30 inches. Miamian soils have carbonates between 18 and 40 inches. Shranka soils have more sand in the lower part of the B and C horizons. Shircliff soils have yellower colors (10YR) in the lower part of the Bt horizon. Useful soils have a lithic contact between 40 and 60 inches.
GEOGRAPHIC SETTING: Vincent soils are on gently sloping to steep slopes on dissected remnants of lacustrine areas in the Allegheny Plateau. Slopes range from 2 to 25 percent. The regolith includes a maximum of 20 inches of silty alluvium or loess and clayey sediments that have reddish hues. The sediments in which the soils formed are derived, at least partly, from areas of Upshur and Woodsfield soils of the nearby uplands. Mean annual precipitation ranges from about 35 to 45 inches, and mean annual temperature ranges from about 52 to 56 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: Soils on similar nearby positions are the Allegheny, Licking, Monogahela, Omulga, and Wyatt series. These soils have yellowish brown B horizons, Omulga and Monogahela also have fragipan horizons. Soils on nearby uplands are the fine-textured Upshur, Lowell, and Woodsfield soils and the fine-loamy Gilpin and Summitville soils.
DRAINAGE AND PERMEABILITY: Well or moderately well drained. Runoff is medium to rapid; permeability is slow.
USE AND VEGETATION: Most areas are cultivated or used for pasture. Principal crops are corn, wheat, or forage crops. Native vegetation was deciduous hardwoods, mostly oaks, tulip poplar, hickory, and maple dominate.
DISTRIBUTION AND EXTENT: Southern Ohio and West Virginia in MRLA 126. Total extent is moderate.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Washington County, Ohio, 1926.
REMARKS: Diagnostic horizons and features recognized in this pedon are: ochric epipedon - from the surface to a depth of about 10 inches (Ap horizon); argillic horizon - the zone between depths of about 10 to 46 inches (Bt1, 2Bt, 2Bt3, 2Bt4, 2Bt5 horizons).
ADDITIONAL DATA: Characterization data is available for one profile, WS-33 sampled in Washington County, Ohio.