LOCATION NERESON MNEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, frigid Aquic Argiudolls
TYPICAL PEDON: Nereson fine sandy loam on a slightly convex slope of less than one percent in an uncultivated field at 1090 feet above MSL. ( Ccolors are for moist soil unless otherwise stated)
A--0 to 7 inches; black (10YR 2/1) fine sandy loam, dark gray (10YR 4/1) dry; weak fine subangular blocky structure; friable; few very fine roots; about 2 percent gravel; slightly acid; clear wavy boundary. (5 to 16 inches thick)
Bt--7 to 11 inches; brown (10YR 4/3) sandy loam; weak medium angular blocky structure parting to weak fine subangular blocky; friable; few very fine roots; very few faint discontinous dark grayish brown (10YR 4/2) clay films on faces of peds; about 3 percent gravel; slightly alkaline; abrupt wavy boundary. (3 to 8 inches thick)
2Bk1--11 to 18 inches; pale brown (10YR 6/3) loam; weak fine subangular blocky structure; friable; few fine distinct yellowish brown (10YR 5/6) redoximorphic concentrations; few very fine roots; very few distinct discontinuous light gray (10YR 7/2) carbonates coats on underside of rock fragments; about 4 percent gravel; strongly effervescent; moderately alkaline; clear wavy boundary.
2Bk2--18 to 29 inches; pale brown (10YR 6/3) loam; weak fine subangular blocky structure; friable; common medium distinct yellowish brown (10YR 5/6) redoximorphic concentrations; few very fine roots; very few distinct discontinuous light gray (10YR 7/2) carbonates coats on underside of rock fragments; about 7 percent gravel; strongly effervescent; moderately alkaline; clear wavy boundary. (Combined 2Bk horizons 6 to 24 inches thick)
2C1--29 to 63 inches; pale brown (10YR 6/3) fine sandy loam; massive with weak fine prismatic soil fragments parting to weak fine platy soil fragments; friable; many medium faint light brownish gray (10YR 6/2) redoximorphic depletions and few fine distinct yellowish brown (10YR 5/6) redoximorphic concentrations; very few distinct discontinuous light gray (10YR 7/2) carbonates coats on underside of rock fragments; about 5 percent gravel; strongly effervescent; moderately alkaline; clear wavy boundary.
2C2--29 to 63 inches; light brownish gray (10YR 6/2) loam; massive with weak medium subangular blocky soil fragments parting to weak fine platy soil fragments; friable; many fine and medium distinct light yellowish brown (10YR 6/4) and few fine distinct yellowish brown (10YR 5/6) redoximorphic concentrations; about 5 percent gravel; strongly effervescent; moderately alkaline.
TYPE LOCATION: Roseau County, Minnesota; 2600 feet south and 1800 feet west of the northeast corner of sec. 9, T.161N.,R.40W. USGS Roseau, MN quadrangle Lat. 48 degrees 46 minutes 58 seconds Long. 95 degrees 48 minutes 53 seconds.
RANGE IN CHARACTERISTICS: The thickness of the mollic epipedon is 7 (after mixing) to 16 inches. The depth to carbonates ranges from 10 to 22 inches. One or more lag lines are in the upper sediment or at the contact with the till in some pedons. The content of rock fragments ranges from a trace to 15 percent in the upper sediment, 15 to 35 percent in the lag line, and 2 to 15 percent in the till. The fragments are of mixed lithology, but limestone and granite are dominant components. The depth to the coarse-loamy till is 10 to 36 inches. These soils are saturated with water within depths of 40 inches during some part of the growing seasons in most years unless artificially drained. Redoximorphic features are within depths of 40 inches.
The A horizon has hue of 10YR, value of 2 or 3, and chroma of 1 or 2. It is sandy loam, fine sandy loam, loam, or silt loam. It has weak or moderate, granular or subangular blocky structure. It is slightly acid to slightly alkaline.
Some pedons have an E horizon. Where present, it has hue of 10YR, value of 4 or 5, and chroma of 2. Its range in texture is the same as the A horizon.
The Bt horizon has hue of 10YR or 2.5Y, value of 3 to 5, and chroma of 2 or 3. It is sandy loam, fine sandy loam, or loam averaging less than 18 percent clay. It has rock fragments that are more than 5 mm in diameter. It typically has weak or moderate, angular or subangular blocky structure, but in some pedons it has weak or moderate prismatic primary structure. Clay films are faint or distinct and patchy to continuous. It ranges from neutral or slighlty alkaline.
Some pedons have a 2Bw horizon up to 5 inches thick. Where present, it has hue of 10YR or 2.5Y, value of 4 to 6, and chroma of 2 or 3. It has few to many redoximorphic features. The texture is gravelly sandy loam, gravelly fine sandy loam or gravelly loam. It is slightly alkaline or moderately alkaline.
The 2Bk horizon has a matrix with hue of 10YR or 2.5Y, value of 5 to 7, and chroma of 2 or 3. These horizons have few to many redoximorphic features. The texture is sandy loam, fine sandy loam, loam, or their gravelly analogues. It is friable or very friable. It is slightly alkaline or moderately alkaline. The calcium carbonate equivalent ranges from 15 to 40 percent and the horizons qualifies as a calcic horizon.
The 2C horizon has hue of 10YR or 2.5Y, value of 5 or 6, and chroma of 2 or 3. It has few to many redoximorphic features. The texture is sandy loam, fine sandy loam, loam or their gravelly analogues. It is slightly alkaline or moderately alkaline. Calcium carbonate equivalent ranges from 10 to 30 percent.
COMPETING SERIES: These are in the Linveldt and Oylen series. Oylen soils do not have calcic or Bk horizons. In addition, they have rock fragments less than 5 millimeters in diameter in the argillic horizons and are underlain by sandy material. Linveldt soils have a layer of sandy material between the mantle and the underlying glacial till.
GEOGRAPHIC SETTING: These soils have plane or slightly convex slopes with gradient of 0 to 6 percent on lake plains. These deposits are Late Wisconsin in age. Mean annual air temperature is 36 to 42 degrees F. Mean annual precipitation is 19 to 24 inches. Frost-free days range from 90 to 120. Elevation ranges from 800 to 1300 feet above sea level.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Haug, Percy, Skagen and Strathcona soils. Haug soils are very poorly drained and have thin organic surface layers and are in lower lying positions. Percy and Strathcona soils are poorly drained and are in lower lying positions. Skagen soils are on similar positions as Nereson soils. They do not have an argillic horizon.
DRAINAGE AND PERMEABILITY: Moderately well drained. Surface runoff is medium and slow. Permeability is moderate or moderately rapid. Depth to an apparent seasonal high water table is at 2.5 to 3.5 feet from March to June in most years.
USE AND VEGETATION: About three-fourths of these soils are cultivated. Small grains and hay are the principal crops. The remainder is used for growing pasture and trees. Native vegetation is savanna - tall grass prairie and trees such as trembling aspen and bur oak.
DISTRIBUTION AND EXTENT: Northwestern Minnesota in the Red River Valley. Minor in extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Red River Valley Reconnaissance Soil Survey, Minnesota, in 1933.
REMARKS: Diagnostic horizons and features recognized in this pedon are: mollic epipedon - from the surface of the soil to a depth of 7 inches (A horizon); argillic horizon - the zone from 7 to 11 inches (Bt horizon); calcic horizon - the zone from 11 to 29 inches (2Bk1 and 2Bk2 horizons); aquic subgroup - low chroma redoximorphic depletions within 40 inches of the surface (2C1 horizon).
ADDITIONAL DATA: Refer to MAES File Code No. 1245 and No. 1201. Soil Interpretation Record MN0118.