LOCATION ANTUNG INEstablished Series
TAXONOMIC CLASS: Sandy, mixed, mesic Histic Humaquepts
TYPICAL PEDON: Antung muck, on a less than 1 percent slope in a cultivated field at an elevation of 700 feet. (Colors are for moist soil unless otherwise stated.)
Oap--0 to 9 inches; black (N 2.5/0) broken face and rubbed muck (sapric material); a trace of fiber unrubbed and rubbed; moderate medium granular structure; friable; common very fine and fine roots; neutral; abrupt smooth boundary.
Oa--9 to 12 inches; black (N 2.5/0) broken face and rubbed muck (sapric material); a trace of fiber unrubbed and rubbed; weak medium subangular blocky structure; friable; common very fine and fine roots; neutral; abrupt smooth boundary. (Combined thickness of the Oa horizon is 7 to 16 inches.)
Cg1--12 to 28 inches; light brownish gray (10YR 6/2) sand; single grain; loose; many medium faint pale brown (10YR 6/3) and few medium prominent yellowish brown (10YR 5/8) masses of iron oxide accumulation in the matrix; slightly effervescent; moderately alkaline; clear wavy boundary.
Cg2--28 to 48 inches; light brownish gray (10YR 6/2) sand; single grain; loose; few medium prominent yellowish brown (10YR 5/8) masses of iron oxide accumulation in the matrix; slightly effervescent; moderately alkaline; clear wavy boundary.
Cg3--48 to 80 inches; grayish brown (10YR 5/2) coarse sand; single grain; loose; strongly effervescent; moderately alkaline.
TYPE LOCATION: Pulaski County, Indiana; about 1 1/2 miles southeast of Ripley; 2,260 feet east and 95 feet north of the southwest corner of sec. 3, T. 31 N., R. 2 W.; U.S.G.S. Ripley, IN topographic quadrangle; lat. 41 degrees 5 minutes 5.1 seconds N. and long. 86 degrees 37 minutes 58.3 seconds W., NAD 27; UTM Zone 16, 530837 easting and 4548233 northing, NAD 83.
RANGE IN CHARACTERISTICS:
Depth to the sandy C horizon: 7 to 16 inches
Organic fibers: derived primarily from herbaceous plants, but some layers contain material of woody origin
Oap or Oa horizon:
Hue: 10YR or N
Value: 2, 2.5, or 3
Chroma: 0 to 2 in the Oap horizon; 0 to 3 in the Oa horizon
Texture: muck (sapric material)
Reaction: slightly acid to neutral
Cg horizon:
Hue: 10YR or 2.5Y
Value: 4 to 6
Chroma: 1 or 2
Texture: sand, coarse sand, fine sand, or loamy sand, or their gravelly analogues
Reaction: neutral to moderately alkaline
Rock fragment content: 0 to 25 percent
COMPETING SERIES: These are the Ackerman and Scarboro series. Similar soils include the Henrietta series. Ackerman soils have coprogenous earth underlying the organic horizons. Scarboro soils are more acid than slightly acid in the organic horizons and upper part of the C horizon. Henrietta soils have a coarse-loamy particle-size class.
GEOGRAPHIC SETTING: Antung soils formed in a thin layer of herbaceous organic material overlying sandy deposits and are in shallow closed depressions primarily on outwash plains, lake plains, lake terraces and flood plains, but can occur within moraines and till plains. Slope gradients range from 0 to 1 percent. Usually the adjacent soils are sandy. 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 580 to 1,400 feet above sea level.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Adrian, Edselton, Gilford, Granby, Houghton, Madaus, and Newton soils. The very poorly drained Adrian, Edselton, Houghton, and Madaus soils are on similar landform positions as the Antung soils. Adrian and Houghton soils formed in more than 16 inches of herbaceous organic deposits. Edselton and Madaus soils are underlain by marl and sand. The poorly drained or very poorly drained Gilford and Granby soils, and the very poorly drained Newton soils are sandy or loamy throughout, and generally are at the margins of depressions.
DRAINAGE AND PERMEABILITY: Very poorly drained. The potential for surface runoff is negligible. Permeability is moderately slow to moderately rapid in the organic material and rapid in the sandy material. The depth to the top of an apparent seasonal high water table ranges from 1 foot above the surface to 1 foot below the surface from November to May in normal years. Where these soils are on flood plains the water table may be more that 1 foot above the surface when the associated stream overflows its banks.
USE AND VEGETATION: Most of these soils are drained and used for cultivated crops. Common crops include corn and soybeans, with small areas in mint, hay and pasture. Undrained areas are in native vegetation such as marsh grasses, including sedges, reeds, grasses; and shrubs and trees such as willow, cottonwood, and soft maple.
DISTRIBUTION AND EXTENT: MLRA 98 and 111 in northern Indiana and southern Michigan. The soils are of small extent.
MLRA OFFICE RESPONSIBLE: Indianapolis, Indiana.
SERIES ESTABLISHED: Pulaski County, Indiana, 2001.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Histic epipedon: muck (sapric material) from the surface to 12 inches (Oap, Oa)
Aquic conditions: accumulation of organic material at the surface and redoximorphic features in all horizons between 12 and 80 inches
The Antung series was proposed for the Adrian soils with less than 16 inches of muck mapped in the Pulaski County, Indiana soil survey update. Drained and undrained phases are recognized.
NASIS Data Mapunit ID 152934 represents the drained phase and is the typical pedon.
NASIS Data Mapunit ID 152935 represents the undrained phase.
ADDITIONAL DATA: Lab characterization data is available for the typical pedon (S99IN-131-003) from the National Soil Survey Laboratory, Lincoln, NE. Transect data (T99IN-131-020) is on file in the MLRA project office in Plymouth, Indiana. Transect shows 90 percent Antung and 10 percent Madaus soils.