LOCATION RADIOVILLE INEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Typic Argiaquolls
TYPICAL PEDON: Radioville loam, on a slope of less than 1 percent in a cultivated field at an elevation of 686 feet. (Colors are for moist soil unless otherwise stated.)
Ap1--0 to 7 inches; black (10YR 2/1) loam, very dark grayish brown (10YR 3/2) dry; moderate fine granular structure; friable; few very fine and fine roots throughout; few very fine and common medium tubular pores with high continuity throughout; slightly acid; abrupt smooth boundary.
Ap2--7 to 11 inches; black (10YR 2/1) loam, very dark grayish brown (10YR 3/2) dry; moderate fine subangular blocky structure; friable; few very fine and fine roots throughout; few very fine and common medium tubular pores with high continuity throughout; slightly acid; abrupt smooth boundary.
AB--11 to 18 inches; very dark gray (10YR 3/1) loam, dark gray (10YR 4/1) dry; moderate medium subangular blocky structure; friable; few very fine and fine roots throughout; few very fine and common medium tubular pores with high continuity throughout; common fine faint dark grayish brown (10YR 4/2) masses of iron oxide accumulation in the matrix; neutral; clear wavy boundary. (Combined thickness of the Ap and AB horizons is 10 to 24 inches.)
Btg1--18 to 23 inches; dark gray (10YR 4/1) loam; moderate medium subangular blocky structure; friable; few very fine and common medium tubular pores with high continuity throughout; very dark gray (10YR 3/1) organo-clay films on faces of peds and in pores; common medium distinct brown (10YR 4/3) and common fine prominent yellowish brown (10YR 5/6) masses of iron oxide accumulation in the matrix; neutral; clear wavy boundary.
Btg2--23 to 30 inches; grayish brown (10YR 5/2) loam; moderate medium prismatic structure; friable; few very fine and common medium tubular pores with high continuity throughout; common distinct dark gray (10YR 4/1) clay films on faces of peds and in pores; very dark gray (10YR 3/1) organo-clay films on faces of peds and in pores; common medium prominent yellowish brown (10YR 5/6) masses of iron oxide accumulation in the matrix; neutral; clear wavy boundary.
Btg3--30 to 36 inches; gray (2.5Y 5/1) loam; moderate medium prismatic structure; friable; few medium tubular pores with high continuity; common distinct dark gray (10YR 4/1) clay films on faces of peds and in pores; very dark gray (10YR 3/1) organo-clay films on faces of peds and in pores; common medium prominent brownish yellow (10YR 6/6) masses of iron oxide accumulation in the matrix; neutral; clear wavy boundary.
Btg4--36 to 42 inches; gray (2.5Y 5/1) loam; weak coarse prismatic structure; friable; very dark gray (10YR 3/1) organo-clay films on faces of peds and in pores; common medium prominent yellowish brown (10YR 5/6) masses of iron oxide accumulation in the matrix; neutral; clear wavy boundary. (Combined thickness of the Btg horizon is 12 to 40 inches.)
2C--42 to 53 inches; pale brown (10YR 6/3) fine sand; single grain; loose; strongly effervescent; moderately alkaline; abrupt smooth boundary. (0 to 15 inches thick.)
3Cg1--53 to 62 inches; dark grayish brown (10YR 4/2) silty clay loam; massive; friable; common faint gray (10YR 6/1) thin sand lenses between bedding plains; common medium prominent red (2.5YR 5/6) and common medium faint brown (10YR 5/3) masses of iron oxide accumulation in the matrix; strongly effervescent; moderately alkaline; clear smooth boundary.
3Cg2--62 to 80 inches; dark gray (10YR 4/1) silty clay loam; massive; friable; common faint gray (10YR 6/1) thin fine sand lenses between bedding plains; common medium faint grayish brown (10YR 5/2) masses of iron oxide accumulation in the matrix; strongly effervescent; moderately alkaline.
TYPE LOCATION: Pulaski County, Indiana; 1 mile south and 1/2 mile west of Medaryville; 1,775 feet south and 2,050 feet east of the northwest corner of sec. 8, T. 30 N., R. 4 W.; U.S.G.S. Medaryville topographic quadrangle; lat. 41 degrees 3 minutes 57.6 seconds N. and long. 86 degrees 54 minutes 11.8 seconds W., NAD 27; UTM Zone 16, 508124 easting and 4546091 northing, NAD 83.
RANGE IN CHARACTERISTICS:
Depth to the base of the argillic horizon: 30 to 55 inches
Depth to carbonates: 30 to 55 inches
Thickness of the mollic epipedon: 10 to 24 inches
Thickness of the loamy sediments: 40 to 60 inches
Most pedons have some fine sand or sand strata near the contact with the lacustrine materials
Particle-size control section: averages 20 to 35 percent clay and 25 to 40 percent fine sand or coarser
Ap or AB horizon:
Hue: 10YR
Value: 2 or 3
Chroma: 1 or 2
Texture: silt loam, loam, fine sandy loam, silty clay loam, or clay loam
Reaction: slightly acid or neutral
Rock fragment content: 0 to 5 percent gravel
Btg horizon:
Hue: 10YR to 5Y
Value: 4 to 6
Chroma: 1 or 2; some subhorizons have chroma of 3 or 4 in the lower part
Texture: clay loam, loam, very fine sandy loam, or silty clay loam in the upper part, and loam, sandy clay loam, clay loam, silt loam, or sandy loam in the lower part
Reaction: slightly acid or neutral
Rock fragment content: 0 to 5 percent gravel
BC or BCg horizon: (where present)
Hue: 10YR to 5Y
Value: 4 to 6
Chroma: 1 to 3
Texture: loam, very fine sandy loam, sandy loam, or silt loam; with thin strata of sand or fine sand
Reaction: neutral or slightly alkaline
Rock fragment content: 0 to 5 percent gravel
Thickness: 0 to 10 inches
2C or 2Cg horizon:
Hue: 10YR or 2.5Y, or N
Value: 4 to 6
Chroma: 0 to 3
Texture: fine sand or sand
Reaction: slightly alkaline or moderately alkaline
Rock fragment content: 0 to 5 percent gravel
3C or 3Cg horizon:
Hue: 10YR or 2.5Y, or N
Value: 4 to 6
Chroma: 0 to 3
Texture: silt loam, silty clay loam, or silty clay; very thin strata of sand or fine sand are between the bedding plains in some pedons
Clay content: 25 to 55 percent
Reaction: slightly alkaline or moderately alkaline
Calcium carbonate equivalent: 5 to 30 percent
COMPETING SERIES: These are the Barry, Berville, Brookston, Buntingville, Clackamas, Cordova, Forestcity, Hamel, Jameston, Millgrove, Navan, Navunon, Nosoni, Rensselaer, and Westland series. Barry, Brookston, and Rensselaer soils have less than 25 percent clay in the lower part of the series control section. Berville, Clackamas, Millgrove, and Westland soils have more than 5 percent rock fragments in some part of the argillic horizon. Buntingville soils are less than 30 inches to carbonates. Cordova soils have rock fragments in the lower part of the series control section. Forestcity, Hamel, and Nosoni soils have mollic epipedons more than 24 inches thick. Jameston soils very firm consistence and distinct coatings with chroma of 1 in the argillic horizon. Navan soils have loamy sediments that are less than 40 inches thick. Navunon soils have a lithic contact within a depth of 60 inches.
GEOGRAPHIC SETTING: Radioville soils formed in loamy sediments overlying silty or clayey lacustrine sediments and are on lake plains and outwash plains. Slope gradients range from 0 to 1 percent. Mean annual temperature ranges from 48 to 53 degrees F., mean annual precipitation ranges from 30 to 42 inches, frost-free period ranges from 130 to 180 days, and elevation ranges from 600 to 1,530 feet above sea level.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gilford, Headlee, Medaryville, Rensselaer, Whiskerville, and Whitepost soils. The poorly drained or very poorly drained Gilford, Rensselaer, and Whitepost soils are on similar landforms. The somewhat poorly drained Headlee and Medaryville soils are on swells. The moderately well drained Whiskerville soils are on higher swells.
DRAINAGE AND PERMEABILITY: Poorly drained or very poorly drained. The potential for surface runoff is negligible. Permeability is moderate in the loamy sediments and slow or very slow in the lacustrine sediments. The depth to the top of an apparent seasonal high water table ranges from 0.5 foot above the surface to 1 foot below the surface for some time in normal years.
USE AND VEGETATION: Soils are mostly used to grow corn, soybeans, and small grain. Native vegetation is swamp grasses and deciduous hardwood forest.
DISTRIBUTION AND EXTENT: MLRA 111 in northern Indiana, and possibly in northern Ohio and northern Illinois. The soils are of small extent.
MLRA OFFICE RESPONSIBLE: Indianapolis, Indiana.
SERIES ESTABLISHED: Pulaski County, Indiana, 2001.
REMARKS: Diagnostic features and horizons recognized in this pedon are:
Mollic epipedon: from the surface to 18 inches (Ap and AB horizons)
Argillic horizon: from 18 to 42 inches (Btg1, Btg2, Btg3, and Btg4 horizons)
Aquic conditions: redoximorphic features present from11 to 42 inches (AB, Btg1, Btg2, Btg3, and Btg4 horizons) and 53 to 80 inches (3Cg1 and 3Cg2 horizons)
The Radioville series was proposed for the Rensselaer soils with lacustrine materials in the lower part of the series control section mapped in the Pulaski County, Indiana soil survey update.
NASIS Data Mapunit ID 155001 represents the typical pedon in complex with Mermill soils.
NASIS Data Mapunit ID 155000 represents Radioville soils in complex with Rensselaer soils.
ADDITIONAL DATA: Lab characterization data is available for the typical pedon (S98IN-131-010) from the National Soil Survey Laboratory in Lincoln, NE. Transect data for the typical pedon (T98IN-131-068) is on file in the MLRA project office, Plymouth, Indiana. Transect shows 50 percent Radioville soils, 40 percent Rensselaer soils, and 10 percent Whitepost soils.