LOCATION BLANCHESTER OH
Established Series
Rev. TEL-SJH-JRA-MHD
11/2021
BLANCHESTER SERIES
The Blanchester series consists of very deep, poorly drained soils formed in lacustrine deposits and the underlying till on till plains. Slope ranges from 0 to 1 percent. Mean annual precipitation is about 1054 mm (41 inches), and mean annual air temperature is about 11 degrees C (52 degrees F).
TAXONOMIC CLASS: Fine, mixed, superactive, nonacid, mesic Mollic Endoaquepts
TYPICAL PEDON: Blanchester silty clay loam, on a slightly concave, nearly level area in a cultivated field at an elevation of about 302 meters (991 feet) above mean sea level. (Colors are for moist soil unless otherwise stated.)
Ap1--0 to 18 cm (0 to 7 inches); very dark grayish brown (2.5Y 3/2) silty clay loam, gray (10YR 5/1) dry; moderate medium and fine subangular blocky structure; friable; many fine roots; common fine prominent yellowish brown (10YR 5/6) masses of iron accumulation throughout; slightly acid; clear wavy boundary. [15 to 23 cm (6 to 9 inches) thick]
Ap2--18 to 30 cm (7 to 12 inches); dark gray (10YR 4/1) silty clay loam; moderate coarse angular blocky structure parting to moderate medium subangular blocky; firm; few fine roots; common distinct dark gray (10YR 4/1) coatings on faces of peds; few fine prominent yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; 1 percent igneous rock fragments; neutral; abrupt wavy boundary. [0 to 5 inches (12 inches) thick]
Bg1--30 to 48 cm (12 to 18 inches); dark gray (10YR 4/1) silty clay loam; moderate medium subangular blocky structure; firm; few fine roots; common faint dark gray (10YR 4/1) and common distinct dark grayish brown (10YR 4/2) pressure faces on faces of peds; common fine prominent yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; common fine and medium prominent strong brown (7.5YR 5/8) iron oxide concretions throughout; few fine faint black (10YR 2/1) manganese oxide masses throughout; 1 percent igneous rock fragments; neutral; clear wavy boundary.
Bg2--48 to 71 cm (18 to 28 inches); dark gray (10YR 4/1) silty clay; weak medium prismatic structure parting to moderate medium subangular blocky; firm; common fine roots; common faint dark gray (10YR 4/1) and common distinct dark grayish brown (10YR 4/2) pressure faces on faces of peds; few very dark gray (10YR 3/1) krotovina throughout; common fine prominent yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; common fine and medium prominent strong brown (7.5YR 5/8) iron oxide concretions throughout; 1 percent igneous rock fragments; neutral; clear wavy boundary. [Combined thickness of the Bg horizon is 41 to 64 cm (15 to 25 inches).]
2Bg3--71 to 97 cm (28 to 38 inches); gray (2.5Y 5/1) silty clay; weak medium prismatic structure parting to moderate medium subangular blocky; firm; few fine roots; common faint dark gray (10YR 4/1) and common distinct dark grayish brown (10YR 4/2) pressure faces on faces of peds; many very dark gray (10YR 3/1) krotovina throughout; few fine faint gray (10YR 6/1) clay depletions on faces of peds; many medium prominent yellowish brown (10YR 5/6) and common fine prominent strong brown (7.5YR 5/6) masses of iron accumulation in the matrix; common fine and medium prominent strong brown (7.5YR 5/8) iron oxide concretions throughout; few fine prominent black (10YR 2/1) manganese oxide masses throughout; 3 percent igneous rock fragments; neutral; clear wavy boundary.
2Bg4--97 to 152 cm (38 to 60 inches); gray (2.5Y 5/1) silty clay; moderate medium prismatic structure parting to moderate medium subangular blocky; firm; few fine roots; common faint dark gray (10YR 4/1) and common distinct dark grayish brown (10YR 4/2) pressure faces on faces of peds; many very dark gray (10YR 3/1) krotovina throughout; few fine faint gray (10YR 6/1) clay depletions on faces of peds; common medium prominent yellowish brown (10YR 5/6) and common medium prominent strong brown (7.5YR 5/6) masses of iron accumulation in the matrix; common medium prominent strong brown (7.5YR 5/8) iron oxide concretions throughout; few fine prominent black (10YR 2/1) manganese oxide masses throughout; 3 percent igneous rock fragments; neutral; clear wavy boundary.
2Bg5--152 to 203 cm (60 to 80 inches); gray (10YR 5/1) clay; moderate medium prismatic structure parting to moderate medium subangular blocky; firm; common faint dark gray (10YR 4/1) and common distinct dark grayish brown (10YR 4/2) pressure faces on faces of peds; many very dark gray (10YR 3/1) krotovina throughout; few fine faint gray (10YR 6/1) clay depletions on faces of peds; many medium prominent yellowish brown (10YR 5/6) and common medium prominent strong brown (7.5YR 5/6) masses of iron accumulation in the matrix; many medium prominent strong brown (7.5YR 5/8) iron oxide concretions throughout; few fine distinct black (10YR 2/1) manganese oxide masses throughout; 5 percent igneous rock fragments; neutral. [Combined thickness of the 2Bg horizon is 76 to over 152 cm (30 to over 60 inches).]
TYPE LOCATION: Clinton County, Ohio; about 3.25 miles north-northeast of Blanchester, in Marion Township; about 1920 feet northwest of the junction of OH 133 and OH 730 along OH 133, then about 600 feet west; USGS Blanchester, Ohio topographic quadrangle; lat. 39 degrees 20 minutes 11.2 seconds N. and long. 83 degrees 58 minutes 09.8 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Thickness of the solum: greater than 203 cm (80 inches)
Depth to carbonates: greater than 203 cm (80 inches)
Particle-size control section: averages 35 to 42 percent clay
Ap or A horizon:
Hue: 10YR or 2.5Y
Value: 2, 2.5 or 3; may be 4 in the lower part in some pedons
Chroma: 1 or 2
Texture: silty clay loam
Rock fragment content: 0 to 2 percent
Reaction: moderately acid to neutral
Bg horizon:
Hue: 10YR or 2.5Y
Value: 3 to 6
Chroma: 1 or 2
Texture: silty clay loam or silty clay
Rock fragment content: 0 to 2 percent
Reaction: neutral to moderately alkaline
2Bw or 2Bg horizon:
Hue: 10YR or 2.5Y
Value: 3 to 6
Chroma: 1 to 6
Texture: silty clay loam, clay loam, silty clay, or clay
Rock fragment content: 2 to 10 percent
Reaction: neutral to moderately alkaline
COMPETING SERIES: There are no other series is this family.
GEOGRAPHIC SETTING: Blanchester soils are on broad, concave flats on till plains of Illinoian age. Slope ranges from 0 to 1 percent. The soils formed in lacustrine deposits and the underlying till. Mean annual precipitation ranges from 940 to 1170 mm (37 to 46 inches). Mean annual air temperature ranges from 9 to 14 degrees C (48 to 57 degrees F). Frost-free period is 155 to 225 days. Elevation is 271 to 311 meters (890 to 1020 feet) above mean sea level.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Clermont,
Jonesboro,
Nicely,
Rossmoyne,
Schaffer,
Secondcreek, and
Westboro soils. Clermont soils have a lighter colored surface layer and an eluvial horizon. Secondcreek soils are very poorly drained, have a mollic epipedon, and are in depressionial areas at the base of the
Cuba Moraine. Jonesboro and Rossmoyne soils are moderately well drained and are on convex areas. Nicely soils are moderately well drained and are on shoulders. Schaffer and Westboro soils are somewhat poorly drained and are on slightly convex areas.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Poorly drained. The depth to the top of an intermittent apparent high water table ranges from 15 cm (0.5 foot) above the surface to 15 cm (0.5 foot) below the surface between January and May in normal years. The potential for surface runoff is negligible. Saturated hydraulic conductivity is moderately low in the upper part and low in the lower part. Permeability is slow in the upper part and slow or very slow in the lower part.
USE AND VEGETATION: Blanchester soils are cultivated. Principal crops are corn and soybeans. A few areas are in pasture.
DISTRIBUTION AND EXTENT: Southwestern Ohio; MLRA 114A. The series is of small extent.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: AMHERST, MASSACHUSETTS
SERIES ESTABLISHED: Clinton County, Ohio, 2007.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon: from the surface to a depth of 18 cm (Ap horizon).
Cambic horizon: from a depth of 30 to more than 203 cm (Bg, 2Bg horizons).
Aquic conditions: redox features present in all horizons below a depth of 18 cm.
NASIS DMU ID number 528251 represents the typical pedon.
ADDITIONAL DATA: Characterization data for this soil, user pedon id S07OH027-001, is available through the NSSL, Lincoln, NE.
National Cooperative Soil Survey
U.S.A.