LOCATION SHINDY UTEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, calcareous, frigid Aridic Ustorthents
TYPICAL PEDON: Shindy sandy loam, on a southeast facing 6 percent slope under irrigated cropland at an elevation of 6,640 feet. (Colors are for air-dry soil unless otherwise stated.)
A--0 to 5 inches; brown (7.5YR 5/4) sandy loam, dark brown (7.5YR 4/3) moist; weak medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; common very fine and fine, few medium and coarse roots; many fine tubular pores; very slightly effervescent, 3 percent calcium carbonate equivalent, carbonates are disseminated; moderately alkaline (pH 8.2); clear wavy boundary. (2 to 9 inches thick)
C1--5 to 17 inches; brown (7.5YR 5/4) sandy loam, dark brown (7.5YR 3/4) moist; weak medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; few very fine, fine, medium and coarse roots; common very fine, few fine and medium tubular pores; very slightly effervescent, 1 percent calcium carbonate equivalent, carbonates are disseminated; moderately alkaline (pH 8.2); abrupt smooth boundary. (12 to 26 inches)
Ab1--17 to 30 inches; brown (7.5YR 4/4) sandy loam, dark brown (7.5YR 3/2) moist; moderate medium and fine subangular blocky structure; soft, very friable, nonsticky and nonplastic; few very fine, fine, medium, and coarse roots; few very fine, fine, and medium tubular pores; very slightly effervescent, 1 percent calcium carbonate equivalent, carbonates are disseminated; moderately alkaline (pH 8.4); clear wavy boundary.
C2--30 to 49 inches; reddish brown (5YR 5/3) sandy loam, dark reddish brown (5YR 4/3) moist; weak fine and very fine subangular blocky structure; soft, very friable, nonsticky and nonplastic; few very fine, and medium roots; few very fine and fine tubular pores; slightly effervescent, 4 percent calcium carbonate equivalent, carbonates are disseminated; strongly alkaline (pH 8.5); gradual wavy boundary. (13 to 19 inches)
Ab2--49 to 56 inches; reddish brown (5YR 4/3) loam, dark reddish brown (5YR 3/3) moist; moderate medium subangular blocky structure parting to weak very fine and fine subangular blocky; soft, very friable, slightly sticky and slightly plastic; few very fine, fine, and medium roots; few very fine and fine tubular pores; slightly effervescent, 5 percent calcium carbonate equivalent, carbonates are disseminated; strongly alkaline (pH 8.6); abrupt wavy boundary. (Individual thickness of Ab horizons range from 7 to 13 inches)
C3--56 to 60 inches; brown (7.5YR 5/4) sandy loam, dark brown (7.5YR 3/4) moist; massive; soft, very friable, slightly sticky and nonplastic; few very fine and fine roots; few very fine and fine tubular pores; slightly effervescent, 4 percent calcium carbonate equivalent; carbonates are disseminated; strongly alkaline (pH 8.6).
TYPE LOCATION: Uintah County, Utah; 1.25 miles west of Dry Fork; about 200 feet east, 1,000 feet south of the northwest corner of sec. 16, T.3S., R.20E., SLBM; USGS Dry Fork, Utah quadrangle; 40 degrees, 33 minutes, 39 seconds north latitude and 109 degrees, 41 minutes, 28 seconds west longitude; NAD 027.
RANGE IN CHARACTERISTICS:
Soil moisture: The soil moisture control section is affected by precipitation that falls evenly throughout the year, with a slight increase in late summer and fall. The soil moisture regime is ustic bordering on aridic.
Mean annual soil temperature ranges from 44 to 47 degrees F.
Particle-size control section (weighted average): 10 to 18 percent clay
A horizon:
Hue: 5YR or 7.5YR
Value: 5 or 6 dry, 3 or 4 moist
Chroma: 1 to 6
Calcium carbonate equivalent: 3 to 10 percent
Reaction: slightly alkaline or moderately alkaline
C horizon:
Hue: 5YR or 7.5YR
Value: 4 to 6 dry, 3 or 4 moist
Chroma: 2 to 6
Textures: sandy loam and fine sandy loam; some pedons have thin layers of loamy sand and loam
Calcium carbonate equivalent: 1 to 10 percent
Reaction: slightly alkaline through strongly alkaline
Ab horizon:
Hue: 5YR or 7.5YR
Value: 4 or 5 dry
Chroma: of 2 to 4
Textures: loam or sandy loam
Calcium carbonate equivalent: 1 to 10 percent.
COMPETING SERIES: These are the Lodore, Riedel, and Sham series.
Lodore: moderately deep to a lithic contact
Riedel: moderately deep to a paralithic contact
Sham: have hue yellower than 7.5YR
GEOGRAPHIC SETTING:
Parent material: alluvium derived from sedimentary and metamorphic rocks
Landform: alluvial fans and fan remnants
Slopes: 3 to 8 percent
Elevation: 6,500 to 6,900 feet
Mean annual precipitation: 12 to 16 inches
Mean annual air temperature: 42 to 45 degrees F.
Frost-free period: 90 to 110 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Robido,
Tridell,
Tyzut,
Uver, and
Waterhill soils.
Robido and Uver soils are on flood plains. Robido soils have mollic epipedons. Uver soils have sandy-skeletal particle-size control sections.
Tyzut soils are on hillslopes and are 10 to 20 inches deep to limestone bedrock.
Tridell soils are on mountain slopes and have loamy-skeletal particle-size control sections.
Waterhill soils are on fan remnants and have mollic epipedons.
DRAINAGE AND PERMEABILITY: Well drained; low runoff; moderately rapid permeability.
USE AND VEGETATION: These soils are used principally for rangeland, wildlife habitat, and irrigated cropland. Crops commonly grown are alfalfa and small grains. Potential vegetation consists of Indian ricegrass, needleandthread, western wheatgrass, and mountain big sagebrush. This soil has been correlated to Upland Loam (Mountain Big Sagebrush) - 047CY310UT range site in Utah.
DISTRIBUTION AND EXTENT: Northeastern Utah; LRR E, MLRA 47. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Uintah County, Uintah Area Soil Survey, Utah, 1998. The name is from a prominent spring and ridge in the area.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 10 to 40 inches. (C1, Ab1, and C2 horizons)
Ochric epipedon: The zone from the surface to 5 inches. (A horizon)
This soil does not have an irregular decrease in organic matter.
The classification was changed from an Aridic Ustifluvent to Aridic Ustorthent 8/98.
The CEC activity class was inferred from laboratory data from similar soils in the Uintah Area Soil Survey.
Taxonomic version: Eighth Edition, 1998.