LOCATION THACKERY OH+IN WI

Established Series
Rev. JWH-RAR
11/2021

THACKERY SERIES

The Thackery series consists of very deep, moderately well drained soils formed in loamy material and the underlying calcareous outwash. The soils are on outwash plains and stream terraces. Slope ranges from 0 to 6 percent. Mean annual precipitation is about 965 mm (38 inches), and mean annual air temperature is about 12 degrees C (54 degrees F).

TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Aquic Hapludalfs

TYPICAL PEDON: Thackery silt loam, on a slope of about 1 percent in a cultivated field at an elevation of 276 meters (905 feet) above mean sea level. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 20 cm (0 to 8 inches); dark grayish brown (10YR 4/2) silt loam, light brownish gray (10YR 6/2) dry; weak fine and medium granular structure; friable; moderately acid; abrupt smooth boundary. [15 to 25 cm (6 to 10 inches) thick]

E--20 to 30 cm (8 to 12 inches); brown (10YR 5/3) silt loam; weak medium platy structure; friable; few fine faint grayish brown (10YR 5/2) iron depletions; few fine faint yellowish brown (10YR 5/4) masses of iron accumulation in the matrix; dark grayish brown (10YR 4/2) worm casts; moderately acid; abrupt smooth boundary. [0 to 15 cm (6 inches) thick]

Bt1--30 to 46 cm (12 to 18 inches); brown (10YR 5/3) silt loam; moderate fine subangular blocky structure; friable; few faint brown (10YR 4/3) clay films on faces of peds; few fine faint grayish brown (10YR 5/2) iron depletions on faces of peds; moderately acid; clear smooth boundary. [8 to 36 cm (3 to 14 inches) thick]

2Bt2--46 to 66 cm (18 to 26 inches); dark yellowish brown (10YR 4/4) clay loam; moderate medium subangular blocky structure; firm; common faint brown (10YR 4/3) clay films on faces of peds; few fine distinct grayish brown (10YR 5/2) iron depletions in the matrix; few fine faint yellowish brown (10YR 5/4) masses of iron accumulation in the matrix; 5 percent gravel; strongly acid; clear wavy boundary.

2Bt3--66 to 84 cm (26 to 33 inches); brown (10YR 4/3) clay loam; moderate medium and coarse subangular blocky structure; firm; many faint dark yellowish brown (10YR 4/4) clay films on faces of peds; common fine and medium faint grayish brown (10YR 5/2) iron depletions in the matrix; common fine and medium distinct yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; few fine distinct black (10YR 2/1) manganese concretions in the matrix; 5 percent gravel; slightly acid; clear wavy boundary.

2Btg--84 to 102 cm (33 to 40 inches); grayish brown (10YR 5/2) clay loam; weak coarse subangular blocky structure; firm; common faint dark grayish brown (10YR 4/2) clay films on faces of peds; few fine faint gray (10YR 5/1) iron depletions in the matrix; many medium distinct yellowish brown (10YR 5/4) masses of iron accumulation in the matrix; few fine distinct black (10YR 2/1) manganese concretions in the matrix; 10 percent gravel; neutral; abrupt wavy boundary. [Combined thickness of the 2Bt and 2Btg horizons is 36 to 102 cm (14 to 40 inches).]

2BC--102 to 127 cm (40 to 50 inches); yellowish brown (10YR 5/4) very gravelly loam; weak coarse subangular blocky structure; friable; many medium distinct dark grayish brown (10YR 4/2) iron depletions in the matrix; many medium distinct light brownish gray (10YR 6/2) accumulations of calcium carbonate in the matrix; 55 percent gravel; strongly effervescent; slightly alkaline; gradual wavy boundary. [0 to 51 cm (20 inches) thick]

2C--127 to 183 cm (50 to 72 inches); brown (10YR 5/3) extremely gravelly loamy sand; single grain; loose; 60 percent gravel; strongly effervescent; moderately alkaline.

TYPE LOCATION: Greene County, Ohio; 1.6 miles north of Xenia, in Xenia Township; on Ohio Route 68, 1/3 mile east of the intersection of Route 68 and Township Road T88 (Kinsey Road); USGS Xenia, Ohio topographic quadrangle; lat. 39 degrees 42 minutes 27.5 seconds N. and long. 83 degrees 55 minutes 40.5 seconds W., NAD 27.

RANGE IN CHARACTERISTICS:
Depth to the base of the argillic horizon: 89 to 152 cm (35 to 60 inches)
Depth to carbonates: 81 to 140 cm (32 to 55 inches)
Thickness of the loamy material: maximum thickness of 76 cm (30 inches), but typically is less than 51 cm (20 inches)
Rock fragments: dominantly limestone gravel

Ap horizon:
Hue: 10YR
Value: 4 or 5 (6 or 7 dry)
Chroma: 2 or 3
Texture: silt loam or loam
Rock fragment content: 0 to 2 percent
Reaction: moderately acid to neutral

A horizon, where present:
Thickness: 5 to 10 cm (2 to 4 inches)
Hue: 10YR
Value: 2 or 3 (4 or 5 dry)
Chroma: 2
Texture: silt loam or loam
Rock fragment content: 0 to 2 percent
Reaction: moderately acid to neutral

E horizon:
Hue: 10YR
Value: 4 to 6
Chroma: 2 to 4
Texture: silt loam or loam
Rock fragment content: 0 to 2 percent
Reaction: strongly acid to slightly acid

Some pedons have E/B, B/E, BE, or BA horizons.

Bt horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 3 to 6
Texture: silt loam or silty clay loam
Rock fragment content: 0 to 2 percent
Reaction: strongly acid or moderately acid

Some pedons have a Btg horizon in the lower part.

2Bt or 2Btg horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 2 to 8
Texture: clay loam, loam, or sandy clay loam or the gravelly analogs of these textures, with subhorizons ranging to clay
Rock fragment content: 2 to 25 percent
Reaction: strongly acid to neutral

2BC or 2BCg horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 2 to 4
Texture: gravelly to extremely gravelly analogs of loam, sandy clay loam, or sandy loam
Rock fragment content: 15 to 70 percent
Reaction: slightly acid to moderately alkaline

2C or 2Cg horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 1 to 4
Texture: gravelly to extremely gravelly analogs of loamy coarse sand or loamy sand
Rock fragment content: 15 to 70 percent
Reaction: slightly alkaline or moderately alkaline

Till substratum phase:
Texture: loam, clay loam, or silty clay loam
Reaction: slightly alkaline or moderately alkaline

COMPETING SERIES: These are the Bogart, Centerburg, Cygnet, Haney, Houcktown, Jenera, Jugtown, Nicely, Reaville, Scattersville, Swampoodle, Tuscola, Vallonia (T), Vanlue, and Williamstown series. Bogart soils have rock fragments dominantly of sandstone, shale, and quartz. Centerburg, Cygnet, Houcktown, Jenera, Tuscola, Vallonia, Vanlue, and Williamstown soils have less than 15 percent rock fragments in the lower part of the series control section. In addition, Cygnet and Houcktown soils have a densic contact in the lower part of the series control section. Haney soils have more than 2 percent rock fragments in the upper part of the series control section. Jugtown, Nicely, Scattersville, and Swampoodle soils do not have carbonates within 140 cm (55 inches). Reaville soils have bedrock within 102 cm (40 inches).

GEOGRAPHIC SETTING: The Thackery soils are on nearly level to gently undulating outwash plains and stream terraces of Wisconsinan age. Slope ranges from 0 to 6 percent. The soils formed in loamy material and the underlying calcareous outwash. Mean annual precipitation ranges from about 838 to 1067 mm (33 to 42 inches). Mean annual air temperature ranges from 11 to 13 degrees C (51 to 55 degrees F). Frost-free period is 150 to 180 days. Elevation is 183 to 366 meters (600 to 1200 feet) above mean sea level.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the well drained Fox and Ockley soils, the somewhat poorly drained Sleeth soils, and the very poorly drained Westland soils. Fox and Ockley soils are on higher topographic positions. Sleeth and Westland soils are on depressions and swales.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Moderately well drained. The depth to the top of an intermittent apparent high water table ranges from 30 to 76 cm (1.0 to 2.5 feet) between December and May in normal years. The potential for surface runoff is negligible to medium. Saturated hydraulic conductivity is moderately high in the solum and high or very high in the substratum. Permeability is moderate in the solum, and rapid or very rapid in the substratum.

USE AND VEGETATION: Thackery soils are cultivated. Principal crops include corn, soybeans, oats, wheat, and meadows of grass-legume mixtures. Native vegetation is mixed hardwoods.

DISTRIBUTION AND EXTENT: MLRAs 111A, 111B (sandy substratum phase), 111D, 111E, and 114A in central and western Ohio; MLRAs 111C and 111D in western Indiana; and MLRA 95B in southern Wisconsin. The type location is in MLRA 111D. The series is of small extent.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: AMHERST, MASSACHUSETTS

SERIES ESTABLISHED: Fairfield County, Ohio, 1956.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: from the surface to a depth of 30 cm (Ap, E horizons).
Argillic horizon: from a depth of 30 to 102 cm (Bt, 2Bt, 2Btg horizons).
Aquic conditions: redox features visible in horizons between a depth of 20 and 127 cm.

Sandy substratum and till substratum phases are recognized. Till substratum phases with till above 152 cm (60 inches) have a perched high water table and will be recorrelated to new series when their areas of use are updated.

National Cooperative Soil Survey
U.S.A.