LOCATION GARBORG ND+MNEstablished Series
TAXONOMIC CLASS: Sandy, mixed, frigid Typic Endoaquolls
TYPICAL PEDON: Garborg loamy fine sand - on a slightly concave south facing slope of 1 percent, in cropland. When described the soil was moist to 41 inches and wet from 41 to 80 inches. (Colors are for moist soil unless otherwise stated)
Ap--0 to 9 inches; black (10YR 2/1) loamy fine sand, very dark gray (10YR 3/1) dry; moderate medium subangular blocky structure; moderately hard, very friable, nonsticky and nonplastic; few fine roots; slightly acid; abrupt smooth boundary.
A--9 to 12 inches; black (10YR 2/1) loamy fine sand, very dark gray (10YR 3/1) dry; moderate coarse subangular blocky structure; moderately hard, very friable, nonsticky and nonplastic; few fine roots; slightly alkaline; clear smooth boundary. (Combined A horizons 10 to 24 inches thick)
Bw1--12 to 22 inches; very dark brown (10YR 2/2) loamy fine sand, very dark grayish brown (10YR 3/2) dry; moderate medium subangular blocky structure; moderately hard, very friable, nonsticky and nonplastic; few fine prominent strong brown (7.5YR 4/6) redoximorphic concentrations; very few fine roots; slightly alkaline; clear smooth boundary.
Bw2--22 to 33 inches; very dark grayish brown (10YR 3/2) loamy fine sand, grayish brown (10YR 5/2) dry; weak medium subangular blocky structure; slightly hard, very friable, nonsticky and nonplastic; common fine prominent strong brown (7.5YR 4/6) redoximorphic concentrations; few fine black (10YR 2/1) masses of iron-manganese; slightly alkaline; clear smooth boundary.
Bw3--33 to 41 inches; dark grayish brown (2.5Y 4/2) fine sand, grayish brown (2.5Y 5/2) dry; weak medium subangular blocky structure; slightly hard, very friable, nonsticky and nonplastic; many fine prominent strong brown (7.5YR 5/8) redoximorphic concentrations and few fine distinct grayish brown (10YR 5/2) depletions; few fine black (10YR 2/1) masses of iron-manganese; neutral; clear smooth boundary. (Combined Bw horizons 0 to 30 inches thick)
BCk--41 to 59 inches; grayish brown (2.5Y 5/2) fine sand, light brownish gray (2.5Y 6/2) dry; single grain; loose; many fine prominent strong brown (7.5YR 5/8) and common fine prominent yellowish brown (10YR 5/6) redoximorphic concentrations; few fine black (10YR 2/1) masses of iron-manganese; strong effervescence; moderately alkaline; gradual smooth boundary. (0 to 25 inches thick)
C1--59 to 70 inches; grayish brown (2.5Y 5/2) fine sand, light brownish gray (2.5Y 6/2) dry; single grain; loose; few fine prominent yellowish brown (10YR 5/6) redoximorphic concentrations; few fine black (10YR 2/1) masses of iron-manganese; slight effervescence; moderately alkaline; clear smooth boundary.
C2--70 to 80 inches; grayish brown (2.5Y 5/2) and brown (10YR 4/3) fine sand, light brownish gray (2.5Y 6/2) and pale brown (10YR 6/3) dry; single grain; loose; many medium prominent strong brown (7.5YR 4/6) redoximorphic concentrations; moderately alkaline.
TYPE LOCATION: Richland County, North Dakota; about 5 miles west and 1 mile south of Colfax; 1400 feet east and 50 feet south of the northwest corner of
sec. 4, T. 134 N., R. 50 W.; Latitude 46 degrees, 27 minutes, 22 seconds North and Longitude 96 degrees 58 minutes 56 seconds West; Mooreton NW, ND 1:24000 USGS topographic quadrangle.
RANGE IN CHARACTERISTICS: The thickness of the mollic epipedon ranges from 10 to 24 inches. Depth to carbonates typically is below depths of 30 inches, but ranges from 25 to greater than 80 inches. The 10 to 40 inch particle-size control section and the horizons below the A horizon are loamy fine sand, loamy sand, fine sand or sand. Textures of loamy coarse sand and coarse sand with less than 30 percent coarse and very coarse sand are also allowed in these layers. Rock fragments range from 0 to 5 percent throughout. Buried horizons are below depths of 30 inches in some pedons.
The A horizon has hue of 10YR, value of 2 or 3 and 3 to 5 dry, and chroma of 1 or 2. It is loamy fine sand, fine sandy loam, loamy sand or sandy loam. Textures of loamy coarse sand and coarse sandy loam with less than 30 percent coarse and very coarse sand are allowed. It is slightly acid to moderately alkaline. Where it is more than 16 inches thick it has distinct or prominent redoximorphic concentrations below a depth of 16 inches.
Some pedons have an AC horizon up to 18 inches thick. Where present, it has hue of 10YR, value of 3 or 4 and 4 or 5 dry, and chroma of 1 to 3. It is neutral to moderately alkaline.
The Bw horizon has hue of 10YR or 2.5Y, value of 2 to 4 and 3 to 6 dry, and chroma of 1 or 2. It is neutral to moderately alkaline.
Some pedons have a Bk horizon up to 25 inches thick below a depth of 27 inches. Where present, it has hue of 10YR or 2.5Y, value of 5 or 6 and 6 to 8 dry, and chroma of 2 to 4. It is slightly alkaline or moderately alkaline.
The BCk horizon has hue of 10YR or 2.5Y, value of 4 to 6 and 6 to 8 dry, and chroma of 2 to 4. It may have strata with textures of sandy loam, fine sandy loam or very fine sandy loam in some pedons. It is slightly alkaline or moderately alkaline.
The C horizon has hue of 10YR or 2.5Y, value of 3 to 6 and 5 to 7 dry, and chroma of 2 to 4. Hues of 5Y are allowed below depths of 40 inches. The C horizon has strata with textures of sandy loam, fine sandy loam, loamy very fine sand or very fine sandy loam in some pedons. It is slightly alkaline or moderately alkaline. Some pedons have a Cg horizon. Some pedons have clayey material or strata of silt loam or silty clay loam below a depth of 40 inches.
COMPETING SERIES: These are the Hamar, Hangaard, Isan, Isanti, Medano and Venlo series. These soils are all poor or very poorly drained. Hamar, Hangaard, Isan, Isanti and Venlo soils have a water table at depths of less than 1.5 feet of the surface at some time during the period of March through July. In addition, Hangaard soils contain more than 10 percent rock fragments throughout. Medano soils have carbonates at the surface.
GEOGRAPHIC SETTING: The Garborg soils are on plane or slightly concave slopes on level and nearly level delta plains, lake plains, outwash plains and beach ridges. They formed in sandy eolian, glaciofluvial or glaciolacustrine deposits. Slope ranges from 0 to 3 percent. Mean annual air temperature ranges from 37 to 45 degrees F, and mean annual precipitation ranges from 15 to 22 inches. Frost-free period ranges from 110 to 140 days. Elevation ranges from 650 to 2500 feet.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Hamar and Venlo soils, and the Fossum, Hecla, Maddock and Ulen soils. Hamar, Fossum and Venlo soils are on lower positions of the landscape. Ulen soils are on slightly higher positions on the landscape. Fossum and Ulen soils have carbonates at or near the surface. Hecla and Maddock soils are on higher positions on the landscape. Hecla soils are moderately well drained and do not have distinct or prominent redoximorphic features in or immediately below the mollic epipedon. Maddock soils are well drained or somewhat excessively drained and do not have redoximorphic features above depths of 40 inches.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat poorly drained. Surface runoff is negligible or very low. Saturated hydraulic conductivity is rapid or moderately rapid. An apparent seasonal water table is at a depth of 1.5 to 3.5 feet at some time during the period of April through June.
USE AND VEGETATION: Most areas are used to grow spring seeded small grains, soybeans and corn. Native vegetation is big bluestem, little bluestem, switchgrass, Indian grass, and prairie cordgrass.
DISTRIBUTION AND EXTENT: Eastern North Dakota and western Minnesota. The soil is of large extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Red Lake County, Minnesota, 08/2001.
REMARKS: Diagnostic horizons and features recognized in this pedon are: mollic epipedon - the zone from the surface to a depth of 22 inches (Ap, A and Bw1 horizons). The Bw2 horizon has the color, but not the organic carbon content to be mollic; aquic suborder criteria - chroma of 2 in the lower part of the mollic epipedon and prominent redoximorphic concentrations (Bw1 horizon).
Soils previously correlated as a somewhat poorly drained phase of the Hamar series are included in the Garborg series. These soils are considered nonhydric.