LOCATION TADKEE MNEstablished Series
TAXONOMIC CLASS: Sandy over loamy, mixed, superactive, nonacid, mesic Mollic Endoaquents
TYPICAL PEDON: Tadkee loamy fine sand, on a 1 percent slope, in pastured area. (Colors are for moist soil unless otherwise indicated.)
A--0 to 6 inches; very dark brown (10YR 2/2) loamy fine sand, grayish brown (10YR 5/2) dry; weak medium granular structure parting to single grain; very friable; many very fine and fine roots; neutral; clear wavy boundary. (3 to 9 inches thick)
Bg1--6 to 17 inches; grayish brown (2.5Y 5/2) fine sand; single grain; loose; few very fine roots; few fine prominent brown (7.5YR 4/4) Fe concentrations; neutral; gradual wavy boundary.
Bg2--17 to 34 inches; grayish brown (2.5Y 5/2) sand; single grain; loose; about 12 percent gravel; few medium prominent brown (7.5YR 4/4) Fe concentrations; neutral; clear wavy boundary. (Combined thickness of the Bg horizon is 6 to 35 inches.)
2Cg1--34 to 68 inches; olive gray (5Y 5/2) clay loam; massive; firm; about 8 percent gravel; common medium prominent greenish gray (5GY 5/1) Fe depletions and common medium prominent dark reddish brown (5YR 3/4) Fe concentrations; slightly effervescent; slightly alkaline; gradual wavy boundary. (0 to 20 inches thick)
2Cg2--68 to 80 inches; olive gray (5Y 5/2) loam; massive; firm; about 8 percent gravel; common medium prominent greenish gray (5GY 5/1) Fe depletions and common medium prominent dark reddish brown (5YR 3/4) Fe concentrations; slightly effervescent; slightly alkaline.
TYPE LOCATION: Waseca County, Minnesota; about 2 miles north of Janesville; located about 2,200 feet west and 450 feet south of the northeast corner of section 21, T. 108 N., R. 24 W.; USGS Elysian topographic quadrangle; lat. 44 degrees 08 minutes 47 seconds N. and long. 93 degrees 42 minutes 54 seconds W., NAD 83.
RANGE IN CHARACTERISTICS: The depth to the 2C horizon ranges from 20 to 40 inches. Rock fragments, dominantly gravel, ranges from 0 to 5 percent by volume in the A horizon, 0 to 20 percent in the Bg horizon, and 2 to 8 percent in the underlying loamy glacial till.
The A horizon has hue of 10YR or neutral, value of 2 or 3, and chroma of 0 to 2. It is loamy fine sand, loamy sand, fine sand, sand, or their mucky and gravelly analogues. The reaction is slightly acid to slightly alkaline.
The Bg horizon has hue of 10YR or 2.5Y, value of 4 to 6, and chroma of 1 or 2. It is loamy fine sand, loamy sand, fine sand, sand, or their gravelly analogues. The reaction is slightly acid to slightly alkaline.
A Cg horizon is present in some pedons. Colors and textures are similar to that of the Bg horizon.
The 2Cg horizon has hue of 2.5Y or 5Y, value of 4 to 6 and chroma of 1 to 2. It is loam or clay loam. The reaction is slightly alkaline or moderately alkaline.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: Tadkee soils are on beaches and rims of glacial and present lakes. Slope ranges from 0 to 2 percent. The soils formed in a mantle of sandy material underlain by loamy glacial till at depths of 20 to 40 inches. Mean annual precipitation ranges from 25 to 32 inches. Mean annual air temperature ranges from 45 to 50 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: Tadkee soils can be associated with many upland glacial till soils.
DRAINAGE AND PERMEABILITY: Poorly and very poorly drained. Surface runoff is negligible. Permeability is rapid in the upper sandy mantle and moderate in the 2C horizon.
USE AND VEGETATION: Most areas of these soils are used for pasture or wildlife habitat. Native vegetation is water tolerant grasses and trees.
DISTRIBUTION AND EXTENT: Mostly east-central Minnesota with limited areas in south-central Minnesota. The series is of very minor extent in MLRA-103.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Waseca County, Minnesota, 2001. The name is coined.
REMARKS: Diagnostic horizons and features recognized in this pedon are: ochric epipedon: the zone from 0 to 6 inches (A horizon); aquic moisture regime.
These soils were included with the Belleville and Essexville soils in the past.