LOCATION FOGLAKE MNEstablished Series
TAXONOMIC CLASS: Fine, smectitic, frigid Mollic Endoaqualfs
TYPICAL PEDON: Foglake silt loam with a plane slope of 1 percent on a glacial lake plain in a cultivated area. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 20 cm; very dark grayish brown (10YR 3/2) silt loam, grayish brown (10YR 5/2) dry; weak fine subangular blocky structure; friable; moderately acid; abrupt smooth boundary. (13 to 23 cm thick)
Eg--20 to 41 cm; grayish brown (10YR 5/2) silt loam, light brownish gray (10YR 6/2) dry; few fine prominent dark yellowish brown (10YR 4/6) Fe concentrations; weak thin platy structure parting to moderate very fine subangular blocky; friable; strongly acid; abrupt wavy boundary. (0 to 30 cm thick)
Btg--41 to 107 cm; dark grayish brown (2.5Y 4/2) silty clay loam; few fine prominent dark yellowish brown (10YR 4/6) Fe concentrations; moderate fine subangular blocky structure; firm; faint continuous very dark grayish brown (2.5Y 3/2) clay films on faces of peds; strongly acid; clear wavy boundary.
BCg--107 to 119 cm; grayish brown (2.5Y 5/2) silty clay loam; common fine prominent yellowish brown (10YR 5/6) Fe concentrations; weak coarse prismatic structure parting to weak medium subangular blocky structure; friable; neutral; clear smooth boundary. (0 to 51 cm thick)
Cg--119 to 203 cm; grayish brown (2.5Y 5/2) silt loam; common medium distinct yellowish brown (10YR 5/6) Fe concentrations and common medium and coarse prominent light gray (10YR 7/2) Fe depletions; massive; friable; few very pale brown (10YR 8/2) carbonate threads and carbonate masses throughout; strongly effervescent; slightly alkaline.
TYPE LOCATION: Mille Lacs County, Minnesota; about .5 miles north and 1.5 miles east of Princeton; 725 feet south and 410 feet east of the northwest corner of sec. 34, T. 37 N., R. 26 W.; USGS Princeton NE topographic quadrangle; lat. 45 degrees 39 minutes 39 seconds N. and long. 93 degrees 34 minutes 23 seconds W., NAD 27.
RANGE IN CHARACTERISTICS: Depth to free carbonates ranges from 76 to more than 152 cm. The series control section does not have rock fragments.
The A horizon has hue of 10YR or 2.5Y, value of 2 or 3, and chroma of 1 or 2. It is silt loam, loam, silty clay loam, very fine sandy loam, or fine sandy loam. It is strongly acid to neutral.
The Eg horizon has hue of 10YR or 2.5Y, value of 4 to 6, and chroma of 1 or 2. It is silt loam, loam, or very fine sandy loam. It has prominent or distinct redoximorphic features. It is strongly acid to neutral.
Some pedons have E/B or B/E horizons with colors and textures similar to the Eg and Btg horizons. These horizons do not classify as glossic.
The Btg horizon has hue of 10YR, 2.5Y, or 5Y, value 3 to 5, and chroma of 1 or 2. It is silty clay, clay, or silty clay loam. It has faint to prominent redoximorphic features. It has few to many, distinct or faint discontinuous clay films. It is strongly acid to neutral.
Some pedons have Bk horizons.
The BCg horizon has hue of 2.5Y or 5Y, value of 4 to 6, and chroma of 1 or 2. It is silty clay loam or silt loam. It has faint to prominent redoximorphic features. It is neutral to slightly alkaline.
The Cg or C horizon has hue of 2.5Y or 5Y, value of 4 to 6, and chroma of 1 to 4. It is silt loam or silty clay loam. This horizon is varved in some pedons. Soft threads or rounded masses of calcium carbonate are in many pedons. It is slightly alkaline or moderately alkaline.
COMPETING SERIES: This is the Whited series. The Whited soils have coarse textured outwash in the lower third of the series control section.
GEOGRAPHIC SETTING: These soils have slightly concave to linear slopes on glacial lake plains. Slope gradients range from 0 to 2 percent. They formed in calcareous, clayey and silty lacustrine sediments from the Des Moines Lobe of the Late Wisconsin Age glaciation. Mean annual air temperature ranges from 2 to 7 degrees C. Mean annual precipitation ranges from 625 to 750 mm. Frost free days range from 90 to 140. Elevation above sea level ranges from 300 to 500 meters.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Grasston and Longsiding soils. The moderately well drained Grasston and somewhat poorly drained Longsiding ( soils are higher lying on the landscape. Organic soils are associated in some places.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Poorly drained. Surface runoff is negligible to low. Saturated hydraulic conductivity is 4.23 to 14.11 micrometers per second (.6 to 2.0 inches)in the upper part, .42 to 4.23 micrometers per second (.06 to .6 inches) in the middle part and 1.41 to 14.11 micrometers per second (.2 to 2.0 inches) in the lower part. The depth to seasonal high saturation is as high as 15 cm below the surface at some time during spring in normal years.
USE AND VEGETATION: The main use is cropland. Common crops grown include corn, soybeans, oats, and legume hay. A few areas are forested. Native vegetation is deciduous forest; ash, aspen, basswood, and elm were the dominant species.
DISTRIBUTION AND EXTENT: MLRA-88, 90A and 93A. East central and northeastern Minnesota. Moderately extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Mille Lacs County, Minnesota, 2006.
REMARKS: Diagnostic horizons and features recognized in this pedon include: ochric epipedon - the zone from the surface to 41 cm (Ap and Eg horizon); albic horizon - the zone from 20 to 41 cm (Eg horizon); argillic horizon - the zone from 41 to 107 cm (Btg horizon); aquic moisture regime - based upon low chroma matrix and redoximorphic features in the argillic horizon.
This soil was previously included with the Brickton series.
ADDITIONAL DATA: Refer to Minnesota Agricultural Experiment Station CFC's #'s 1003 and 2761 for similar pedons.