LOCATION BOYERLAKE MNEstablished Series
TAXONOMIC CLASS: Fine, smectitic, frigid Vertic Eutrudepts
TYPICAL PEDON: Boyerlake silty clay with a convex, west facing slope of 15 percent on a glacial moraine in a cultivated field. (Colors are for moist soil unless otherwise stated).
Ap--0 to 7 inches; dark grayish brown (10YR 4/2) silty clay, light brownish gray (10YR 6/2) dry; moderate fine subangular blocky structure; friable; 4 percent gravel; strongly effervescent; slightly alkaline; abrupt smooth boundary. (7 to 10 inches thick)
Bk1--7 to 17 inches; light olive brown (2.5Y 5/3) silty clay; moderate medium angular blocky structure; friable; few fine prominent yellowish brown (10YR 5/6) Fe concentrations; 2 percent gravel; many light gray (10YR 7/2) carbonate coatings in root channels and on ped faces; strongly effervescent; slightly alkaline; gradual smooth boundary.
Bk2--17 to 37 inches; light olive brown (2.5Y 5/3) silty clay; moderate medium angular blocky structure; friable; common medium faint grayish brown (2.5Y 5/2) Fe depletions and few fine prominent yellowish brown (10YR 5/6) Fe concentrations; 3 percent gravel; many light gray (10YR 7/2) carbonate coatings on ped faces; strongly effervescent; slightly alkaline; gradual smooth boundary. (Combined thickness of Bk horizons is 6 to 40 inches)
C--37 to 80 inches; grayish brown (2.5Y 5/2) silty clay; moderate medium angular blocky-like soil aggregates; friable; many coarse distinct yellowish brown (10YR 5/4) Fe concentrations; 5 percent gravel; few light gray (10YR 7/2) filaments and threads of carbonate; strongly effervescent; slightly alkaline.
TYPE LOCATION: Becker County, Minnesota; about one-half mile west of Lake Park; 850 feet east and 2500 feet south of the northwest corner, sec. 3, T.139N., R.43W; Lake Park Quadrangle; lat. 46 degrees 53 minutes 4 seconds N. and lon. 96 degrees 6 minutes 28 seconds W., NAD27.
RANGE IN CHARACTERISTICS: Free carbonates are in all parts of the series control section. Rock fragments of mixed lithology comprise about 1 to 5 percent of the volume of all horizons. Typically the percent sand ranges from 10 to 20 percent, the percent silt ranges from 35 to 50 percent, and the percent clay ranges from 35 to 60 percent. Linear extensibility, from the surface to a depth of 40 inches ranges from 2.4 to 4 inches.
The Ap horizon has hue of 10YR or 2.5Y, value of 3 to 5, and chroma of 2 or 3. Value dry is 6 or 7. It is silty clay loam, clay loam, silty clay, or clay. It is slightly alkaline or moderately alkaline.
The Bk horizon has hue of 10YR or 2.5Y, value of 4 to 6, and chroma of 2 to 4. It is silty clay loam, clay loam, silty clay or clay. It is slightly alkaline or moderately alkaline. It has a calcium carbonate equivalent of 15 to 25 percent.
The C horizon has hue of 10YR or 2.5Y, value of 5 or 6, and chroma of 2 to 4. It is silty clay loam, clay loam, silty clay, or clay. It is slightly alkaline or moderately alkaline. It has a calcium carbonate equivalent of 10 to 20 percent.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: These soils are on convex slopes on moraines and on sideslopes of drainageways on lake plains. Slope gradients range from 3 to 40 percent. The Boyerlake soils formed in glacial till of Late Wisconsin Age. The mean annual air temperature ranges from about 38 to 42 degrees F. Mean annual precipitation ranges from about 20 to 27 inches. Frost free days range from 90 to 130 days. The elevation above sea level ranges from 1000 to 1600 feet.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Audubon, Dovray, Foxlake and Hattie soils. The moderately well drained Audubon and Hattie soils have mollic epipedons. The very poorly drained Dovray soils are in depressions. The poorly drained Foxlake soils are on lower lying nearly level positions.
DRAINAGE AND PERMEABILITY: Moderately well drained. Surface runoff ranges from high to very high. Permeability is slow. A perched water table occurs in most years at a depth of 3 to 6 feet at some time from October to June.
USE AND VEGETATION: Most of this soil is cultivated. Wheat, barley, and soybeans are the principal crops. Native vegetation is tall grass prairie.
DISTRIBUTION AND EXTENT: Western and Northwestern Minnesota. Inextensive. MRLA-56 and 102A.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Becker County, Minnesota, 1994.
REMARKS: Diagnostic horizons and features recognized in this soil are: Ochric epipedon-the zone from the surface to a depth of 7 inches (Ap horizon); Vertic subgroup-based on a linear extensibility of 2.4 inches or greater in the upper 40 inches. This till was believed to be formed from a minor ice advance through a glacial lake deposit, reworking the sediment into glacial till.
ADDITIONAL DATA: Refer to MAES Central File Code Numbers 4463 (typical pedon) and 4464 for results of some laboratory data.