LOCATION OGILVIE MNEstablished Series
TAXONOMIC CLASS: Coarse-loamy over sandy or sandy-skeletal, mixed, superactive, frigid Udollic Endoaqualfs
TYPICAL PEDON: Ogilvie loam - on a 1 percent slope in a cultivated field.
Ap--0 to 8 inches; very dark gray (10YR 3/1) loam, dark gray (10YR 4/1 ) dry; weak medium subangular blocky structure; very friable; few fine roots; moderately acid; abrupt smooth boundary. ( 6 to 9 inches thick)
E1--8 to 11 inches; grayish brown (10YR 5/2) and dark gray (10YR 4/1) loam; moderate thin platy structure; very friable; common fine prominent brownish yellow (10YR 6/6) Fe concentrations; few fine roots; moderately acid; clear wavy boundary.
E2--11 to 18 inches; grayish brown (10YR 5/2) loam; moderate thin platy structure; very friable; common medium prominent yellowish brown (10YR 5/6) Fe concentrations and common medium faint dark grayish brown (10YR 4/2) Fe depletions; common fine roots; moderately acid; clear wavy boundary. ( Combined thickness of the E horizons is 6 to 18 inches thick)
Bt--18 to 31 inches; brown (10YR 4/3) loam; moderate medium subangular blocky structure; friable; few faint dark yellowish brown (10YR 3/4) clay films on faces of peds and pores; common medium prominent yellowish brown (10YR 5/6) Fe concentrations and common fine faint grayish brown (10YR 5/2) Fe depletions; few fine roots; about 3 percent gravel; moderately acid; abrupt wavy boundary. ( 8 to 20 inches thick)
2C--31 to 60 inches; brown (7.5YR 5/4) gravelly sand; single grained; loose; common coarse distinct reddish brown (5YR 5/3) Fe concentrations and few medium distinct light brownish gray (10YR 6/2) Fe depletions; about 25 percent gravel;moderately acid.
TYPE LOCATION: Benton County Minnesota; 2630 feet west and 2550 feet north of the southeast corner of sec. 14, T. 36 N., R. 28 W.
RANGE IN CHARACTERISTICS: Thickness of the upper loamy mantle is 20 to 40 inches. Carbonates are below depths of 60 inches or more. The content of rock fragments in the loamy mantle range from 0 to 5 percent gravel, by volume, mostly less than 5mm in size. The 2Bt horizon in some pedons have up to 20 percent gravel. The 2C horizon contains from 5 to 50 percent rock fragments with some strata ranging to 65 percent. The rock fragments are of mixed lithology, but mostly of igneous origin.
The A or Ap horizon has hue of 7.5YR or 10YR, value of 2 or 3 and chroma of 1. It is silt loam, very fine sandy loam, or loam. It is strongly acid or moderately acid.
The E horizon has hue of 10YR or 7.5YR, value of 4 or 5, and chroma of 1 or 2. It has faint to prominent redoximorphic features. It is silt loam, very fine sandy loam, or loam. Reaction is strongly acid or moderately acid.
The Bt horizon has hue of 10YR or 2.5Y, value of 4 or 5, and chroma of 3 or 4. Redoximorphic features are faint to prominent. It is loam or silt loam. The 2Bt horizon in some pedons is sandy loam, fine sandy loam, or their gravelly analogues. It is strongly acid or moderately acid.
Some pedons have a thin 2BC horizon less than 5 inches thick. It has colors similar to the Bt or 2C horizons. It is sandy loam, loamy sand or their gravelly analogues. Reaction is strongly acid or moderately acid.
The 2C horizon has a hue of 5YR or 7.5YR, value and chroma of 4 or 5. Redoximorphic features are faint to prominent. It is sand, coarse sand or their gravelly or very gravelly analogues. Stratification is common. It is strongly acid to slightly acid.
COMPETING SERIES: There are no other series in the same family.
GEOGRAPHIC SETTING: Ogilvie soils are on plane to slightly concave positions on level outwash plains, valley trains and stream terraces. Slopes range from 0 to 2 percent. They formed in a loamy mantle of lacustrine or aeolian sediments overlying Superior Lobe sandy and gravelly sediments of Late Wisconsinan Age. Mean annual temperature is 36 to 47 degrees F. Mean annual precipitation is 24 to 33 inches. Frost-free days range from 90 to 145. Elevation above sea level ranges from 670 to 1400 feet.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Novak and Warman soils. The Novak soils are well drained and occupy higher positions on the landscape. The Warman soils are poorly and very poorly drained and are found on lower positions on the landscape.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained. Surface runoff is low. Permeability is moderate in the loamy mantle and rapid or very rapid in the underlying sand and gravel. This soil has season high saturation at depths of 1.0 foot during April to June in years of normal precipitation.
USE AND VEGETATION: Most of the soil is cropped to corn and hay or used as pasture. Native vegetation was probably tall prairie grasses and mixed deciduous forest.
DISTRIBUTION AND EXTENT: East Central Minnesota. Small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Benton County, Minnesota 1970
REMARKS: Diagnostic horizons and features recognized in this pedon are: ochric epipedon - the zone from the surface to a depth of 18 inches ( Ap, E1 and E2 horizons); albic horizon - the zone from 8 to 18 inches (E1 and E2 horizons); argillic horizon - the zone from 18 to 31 inches (Bt horizon); aquic moisture regime based upon low chroma on faces of peds in Bt horizon; udollic subgroup - a dark epipedon that meets the requirements of a mollic epipedon except thickness.
ADDITIONAL DATA: Refer to MAES Central File Code No. 763 and 4223 for results of laboratory data on similar pedons.