LOCATION BODRY UT+COEstablished Series
TAXONOMIC CLASS: Fine, smectitic, calcareous, mesic Ustertic Torriorthents
TYPICAL PEDON: Bodry silty clay loam, on a south facing, linear to concave, 32 percent slope in Wyoming big sagebrush at an elevation of 5,050 feet. (Colors are for dry soil unless otherwise noted.)
The surface is covered by 10 percent gravel and channers.
A--0 to 8 inches; light yellowish brown (2.5Y 6/3) silty clay loam, light olive brown (2.5Y 5/3) moist; weak fine and medium subangular blocky structure; slightly hard, firm, sticky and plastic; few very fine and fine roots; many very fine, few fine tubular pores; calcium carbonate disseminated; very slightly effervescent; moderately alkaline (pH 8.0); clear smooth boundary. (3 to 8 inches thick)
CBy1--8 to 15 inches; light olive brown (2.5Y 5/3) silty clay, grayish brown (2.5Y 5/2) moist; weak fine and medium subangular blocky rock structure; hard, firm, very sticky and very plastic; common very fine, few fine and medium roots; many very fine, few fine tubular pores; common fine and medium irregular shaped soft masses of gypsum; calcium carbonate disseminated; very slightly effervescent; moderately alkaline (pH 8.4); gradual smooth boundary.
CBy2--15 to 28 inches; light olive brown (2.5Y 5/3) silty clay, grayish brown (2.5Y 5/2) moist; moderate fine and medium angular blocky rock structure; very hard, very firm, very sticky and very plastic; common very fine and fine roots; many very fine, common fine tubular and interstitial pores; common fine and medium irregular shaped soft masses of gypsum; calcium carbonate disseminated; very slightly effervescent; moderately alkaline (pH 8.2); gradual wavy boundary.
CBy3--28 to 38 inches; light yellowish brown (2.5Y 6/3) silty clay loam, light olive brown (2.5Y 5/3) moist; strong fine and medium angular blocky rock structure; very hard, very firm, very sticky and very plastic; few very fine roots; many very fine, common fine tubular and interstitial pores; common fine and medium irregular shaped soft masses of gypsum; calcium carbonate disseminated; very slightly effervescent; moderately alkaline (pH 8.0); gradual wavy boundary. (Combined thickness of CBy horizon is 29 to 34 inches)
Cr--38 to 50 inches; weathered shale.
R--50 to 54 inches; unweathered shale.
TYPE LOCATION: Uintah County, Utah; along the Island Park road about 22 miles east of Vernal; located about 2,100 feet west and 2,000 feet north of the southeast corner of sec. 2, T. 4 S., R. 24 E., SLBM; Split Mountain USGS quad; lat. 40 degrees 30 minutes 1 second N. and long. 109 degrees 10 minutes 49 seconds W., NAD 27
RANGE IN CHARACTERISTICS:
Soil moisture regime: Aridic bordering on Ustic.
Mean annual soil temperature: 47 to 51 degrees F.
Mean annual summer soil temperature: 65 to 69 degrees F.
Surface rock fragments: 10 to 25 percent subrounded gravel and cobbles of quartzite and sedimentary origin.
Particle-size control section: 35 to 45 percent clay; 35 to 50 percent soft shale fragments that slake in water.
Depth to paralithic contact: 20 to 40 inches to shale
Depth to gypsiferous material: 4 to 9 inches
Vertic features: Cracks 5 to 10 mm. wide and more than 30 cm. thick and an assumed linear extensibility of greater than 6.0 cm. between the soil surface and the paralithic contact.
Calcium carbonate equivalent: 1 to 10 percent
A horizon:
Hue: 10YR or 2.5Y
Value: 5 or 6 dry, 4 or 5 moist
Chroma: 2 or 3 dry or moist
Rock fragments: 0 to 10 percent quartzite and sedimentary gravel
Gypsum: 1 to 3 percent
CBy horizon:
Hue: 10YR or 2.5Y
Value: 5 or 7 dry, 4 to 6 moist
Chroma: 2 or 3 dry or moist
Texture: silty clay or silty clay loam
Gypsum: 1 to 5 percent
COMPETING SERIES: These are the
Bahl,
Baldfield,
Limon,
Petrie, and
Shower series.
Bahl, Baldfield, Limon, Petrie, and Shower: these soils are very deep.
GEOGRAPHIC SETTING: Bodry soils.
Parent material: slope alluvium and colluvium over residuum derived from shale.
Landform: hills
Slopes: 10 to 40 percent
Elevation: 5,000 to 5,500 feet
Mean annual air temperature: 45 to 49 degrees F.
Mean annual precipitation: 8 to 12 inches.
Wettest and driest months: precipitation falls evenly through the year with a slight increase in late summer and fall.
Frost-free period: 110 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Mikim and
Yarts series.
Mikim and Yarts soils occur on alluvial fans and flats and are very deep.
DRAINAGE AND PERMEABILITY: Well drained, high and very high runoff, slow permeability.
USE AND VEGETATION: The major uses are livestock grazing, wildlife habitat, and recreation. The potential native plant community is Wyoming big sagebrush, shadscale, bluebunch wheatgrass, western wheatgrass, and Sandberg bluegrass. This soil has been correlated to the Semidesert Clay 034XY203UT range site at the type location in Utah.
DISTRIBUTION AND EXTENT: Northeastern Utah. LRR D, MLRA 34. This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Uintah County, (Dinosaur National Monument) Utah. 1997. The name was coined.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: The zone from the surface to 8 inches. (A horizon)
Vertic features: Cracks 5 to 10 mm. wide and more than 30 cm. thick and an estimated linear extensibility of 6.0 to 7.0 cm. between the soil surface and the paralithic contact.
Paralithic contact: 38 inches (Cr layer).
Keys to Soil Taxonomy: Eighth Edition, 1998
Bodot (former competitor): has an Aridic Ustic moisture regime and will be reclassified.