LOCATION RUSHLAKE MN
Established Series
Rev. DLA-ROP-AGG-KDS
02/2012
RUSHLAKE SERIES
The Rushlake series consists of very deep, moderately well drained soils formed in sandy and gravelly deposits on lake beaches. These soils have rapid permeability. Slopes range from 0 to 4 percent. Mean annual precipitation is about 24 inches. Mean annual air temperature is about 42 degrees F.
TAXONOMIC CLASS: Mixed, frigid Aquic Udipsamments
TYPICAL PEDON: Rushlake sand on a slightly concave slope of 1 percent on a lake beach. (Colors are for moist soil unless otherwise stated.)
A--0 to 5 inches; very dark grayish brown (10YR 3/2) sand, grayish brown (10YR 5/2) dry; single grain; loose; many very fine and common fine roots; about 11 percent gravel; neutral; clear smooth boundary. (3 to 10 inches thick.)
C1--5 to 22 inches; brown (10YR 5/3) gravelly coarse sand; single grain; loose; about 31 percent gravel; slightly effervescent; strongly alkaline; clear smooth boundary.
C2--22 to 30 inches; grayish brown (2.5Y 5/2) gravelly coarse sand; single grain; loose; about 18 percent gravel; slightly effervescent; moderately alkaline; clear smooth boundary.
C3--30 to 42 inches; dark grayish brown (2.5Y 4/2) gravelly coarse sand; single grain; loose; about 23 percent gravel; slightly effervescent; moderately alkaline; abrupt smooth boundary.
C4--42 to 80 inches; grayish brown (2.5Y 5/2) gravelly coarse sand; single grain; loose; about 25 percent gravel; slightly effervescent; moderately alkaline.
TYPE LOCATION: Otter Tail County, Minnesota; about 9 miles west of Perham; 2950 feet west and 468 feet south of the northeast corner of section 20, T.136 N. R. 40 W. USGS Star Lake quadrangle; lat. 46 degrees 35 minutes 3 seconds N. and long. 95 degrees 45 minutes 10 seconds W., NAD27
RANGE IN CHARACTERISTICS: Depth to free carbonates ranges from 0 to 80 inches or more. The rock fragments in the A horizon range from 0 to 15 percent gravel by volume and 5 to 35 percent in the C horizon.
The Ap horizon has hue of 10YR, value of 2 to 4 and chroma of 1 to 3. It is loamy sand, loamy coarse sand, sand, or coarse sand. It is slightly acid to slightly alkaline. Some pedons have an AB horizon.
Some pedons have Bw or BC horizons. with hue of 7.5YR or 10YR, value of 4 to 6 and chroma of 2 to 8. Fe concentrations and depletions range from none to many and faint to prominent. It is sand, loamy sand, coarse sand, or loamy coarse sand or their gravelly analogues. It is slightly acid to moderately alkaline.
The C horizon has hue of 10YR or 2.5Y, value of 4 to 6 and chroma of 2 to 6. Fe concentrations and depletions range from none to many and faint to prominent. The sand grains are mostly uncoated. It is coarse sand, sand, loamy coarse sand, loamy sand, or their gravelly analogues. It is slightly alkaline to moderately alkaline.
COMPETING SERIES: These are
Aylmer,
Clearriver,
Hiwood,
Lino,
Meehan,
Poppleton,
Redby,
Sciota (T), and
Winterfield series. Aylmer and Lino soils do not have rock fragments in the series control section. Clearriver soils have lamellae totaling less than 3 inches in cumulative thickness in the series control section. Hiwood, Poppleton, Redby, and Sciota soils have 5 percent or less rock fragments in the series control section. Meehan soils have soil reaction of 7.3 or less in the series control section. Winterfield soils have an irregular decrease in organic matter with depth.
GEOGRAPHIC SETTING: Rushlake soils are on lake beaches. Slopes range from 0 to 4 percent. They formed in very deep sandy and gravelly deposits that have water tables levels associated with the adjacent lakes. Mean annual air temperature is estimated to range from 36 to 45 degrees F. Mean annual precipitation ranges from 19 to 33 inches. Frost-free days range from 90 to 150. Elevation ranges from 700 to 1500 feet above sea level.
GEOGRAPHICALLY ASSOCIATED SOILS: These are
Corliss (T),
Duelm,
Forada,
Friendship,
Hangaard,
Isan,
Leafriver,
Roscommon and
Wheatley series. Excessively drained Corliss soils are on higher landscape positions. The moderately well drained Duelm and Friendship soils are on slightly higher landscape positions. Poorly drained Hangaard, Isan, Roscommon soils are in slightly lower landscape positions. Very poorly drained Forada, Isan, and Leafriver soils are in depressions. Wheatley soils are in slightly lower landscape positions.
DRAINAGE AND PERMEABILITY: Moderately well drained. The water table levels are typically reflected in the hydrology of the adjacent lakes. Surface runoff is slow. Permeability is rapid. An apparent water table is as high at 2.0 to 3.5 feet from January to December in most years.
USE AND VEGETATION: Most areas are wooded. Many areas have been developed for homesites or lakeshore recreational uses. The native vegetation is mixed grass and deciduous forest.
DISTRIBUTION AND EXTENT: West Central Minnesota. These soils are of minor extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Sherburne County, Minnesota, 1994.
REMARKS: Diagnostic horizons and features recognized in this pedon are: Ochric epipedon - from the surface to a depth of 5 inches; aquic subgroup - based on the 2 chroma delpeted matrix due to soil saturation in the upper 40 inches; control section - sandy particle-size class with 5 to 35 percent gravels (by volume) in all subhorizons to a depth of 1 meter; udic moisture regime; frigid temperature regime.
ADDITIONAL DATA: Refer to MAES Central File Code No. 4377 for results of the typical pedon.
National Cooperative Soil Survey
U.S.A.