LOCATION ODOME                   UT

Established Series
Rev. SJN/LDS/JWB
12/2022

ODOME SERIES

The Odome series consists of moderately deep, well drained soils that formed in slope alluvium over residuum derived from sandstone and shale. Odome soils are on shale hills. Slopes range from 2 to 20 percent. Mean annual precipitation is about 7 inches and the mean annual temperature is about 49 degrees F.

TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Typic Calcigypsids

TYPICAL PEDON: Odome channery loam, on a northwest facing, convex, 5 percent slope in rangeland at an elevation of 1,728 meters. (Colors are for dry soil unless otherwise noted.) When described on July 12, 2005, the soil was dry to a depth of 52 cm and slightly moist below that depth. The surface is covered by 15 percent channers and 5 percent gravel.

A--0 to 4 cm; pale brown (10YR 6/3) channery loam, dark yellowish brown (10YR 4/4) moist; weak thin platy structure; very friable, slightly hard, slightly sticky, slightly plastic; few coarse, medium, fine and common very fine roots; common very fine tubular and many very fine interstitial pores; 15 percent channers, 2 percent gravel; slightly effervescent (5 percent calcium carbonate equivalent), carbonates are finely disseminated; slightly alkaline (pH 7.7); abrupt wavy boundary. (3 to 13 cm thick)

Bk--4 to 20 cm; very pale brown (10YR 7/3) loam, light yellowish brown (10YR 6/4) moist; moderate medium and fine subangular blocky structure; friable, slightly hard, slightly sticky, slightly plastic; few coarse, medium and fine and common very fine roots; common very fine tubular and many very fine interstitial pores; 1 percent channers, 1 percent gravel; strongly effervescent (16 percent calcium carbonate equivalent), common threadlike carbonate masses, carbonate coats on bottom surfaces of rock fragments; moderately alkaline (pH 8.0); clear wavy boundary. (15 to 30 cm thick)


By--20 to 46 cm; pale yellow (2.5Y 7/3) gypsiferous parachannery loam, light olive brown (2.5Y 5/4) moist; weak fine subangular blocky structure; very friable, soft, slightly sticky, slightly plastic; few medium, fine and common very fine roots; common very fine tubular pores; many soft gypsum nests and masses (15 percent gypsum), moderately thick coats of gypsum crystals on bottom surfaces of rock fragments; very slightly effervescent (3 percent calcium carbonate equivalent), carbonates are finely disseminated; 3 percent channers, 15 percent parachanners, 2 percent gravel; slightly alkaline (pH 7.5); abrupt wavy boundary. (15 to 41 cm thick)

CBy--46 to 60 cm; light brownish gray (2.5Y 6/2) parachannery clay loam, olive brown (2.5Y 4/3) moist; moderate medium and thin geogenic platy structure; friable, slightly hard, moderately sticky, moderately plastic; few fine and very fine roots; common very fine tubular pores; few gypsum crystals and soft gypsum masses (10 percent gypsum), thin coats of gypsum crystals on bottom surfaces of rock fragments; very slightly effervescent (2 percent calcium carbonate equivalent), carbonates are finely disseminated; 30 percent parachanners, 2 percent gravel; slightly alkaline (pH 7.4); clear smooth boundary. (8 to 25 cm thick)

Cr--60 to 85 cm; weathered gypsiferous Mancos shale interbedded with sandstone.

TYPE LOCATION: Emery County, Utah; about 5 miles ENE of Cleveland, east of Desert Lake; located about 2,100 feet north and 2,100 feet east of the SW corner of sec. 2, T. 17 S., R. 10 E.; Cleveland USGS quad; lat. 39 degrees 22 minutes 22.89 seconds N. and long. 110 degrees 46 minutes 10.04 seconds W., NAD 83.

RANGE IN CHARACTERISTICS:

Soil moisture: Soil moisture control section is usually dry, but intermittently moist during late summer and early fall. Aridic moisture regime.

Mean annual soil temperature: 8.3 to 11.1 degrees C.
Depth to paralithic contact: 51 to 102 cm
Depth to calcic horizon: 4 to 20 cm
Depth to gypsic horizon: 18 to 46 cm
Thickness of ochric epipedon: 4 to 10 cm
Thickness of calcic horizon: 17 to 32 cm
Thickness of gypsic horizon: 39 to 42 cm

Particle-size control section (weighted average):
Clay content: 18 to 32 percent
Sand content: 35 to 55 percent fine sand or coarser
Rock fragments: 5 to 30 percent very strongly cemented to weakly cemented channers and gravel
Gypsum content, less than 20 mm fraction: 5 to 15 percent

A horizon:
Hue: 10YR or 2.5Y
Value: 5 through 7 dry, 4 through 6 moist
Chroma: 3 or 4 dry, 2 through 4 moist
Texture: channery loam
Clay content: 15 to 27 percent
Rock fragments: 15 to 35 percent total; 0 to 10 percent cobbles, 15 to 35 percent channers
Calcium carbonate equivalent: 1 to 14 percent
Gypsum: 0 to 2 percent
Electrical conductivity: 0 to 8 mmhos/cm
Sodium adsorption ration: 0 to 4
Reaction: slightly or moderately alkaline

Bw horizon, where present:
Hue: 10YR or 2.5Y
Value: 5 through 7 dry, 4 through 6 moist
Chroma: 3 or 4 dry, 2 through 4 moist
Texture: channery loam
Clay content: 20 to 26 percent
Rock fragments: 15 to 35 percent channers
Calcium carbonate equivalent: 5 to 12 percent
Gypsum: 0 to 2 percent
Electrical conductivity: 2 to 4 mmhos/cm
Sodium adsorption ration: 0 to 3
Reaction: slightly or moderately alkaline

Bk horizon:
Hue: 10YR or 2.5Y
Value: 5 through 7 dry, 4 through 6 moist
Chroma: 3 or 4 dry, 2 through 4 moist
Texture: loam
Clay content: 15 to 27 percent
Rock fragments: 0 to 15 percent channers
Calcium carbonate equivalent: 15 to 25 percent
Gypsum: 0 to 4 percent
Electrical conductivity: 0 to 8 mmhos/cm
Sodium adsorption ration: 0 to 4
Reaction: slightly or moderately alkaline


By horizon:
Hue: 10YR or 2.5Y
Value: 5 through 7 dry, 4 through 6 moist
Chroma: 3 through 5 dry, 2 through 4 moist
Texture: channery clay loam, parachannery loam, with or without gypsiferous modifier
Clay content: 20 to 35 percent
Rock fragments: 15 to 35 percent total, 0 to 35 percent channers
Pararock fragments: 15 to 35 percent parachanners
Calcium carbonate equivalent: 1 to 10 percent
Gypsum: 5 to 25 percent
Electrical conductivity: 0 to 8 percent
Sodium adsorption ration: 0 to 3
Reaction: slightly or moderately alkaline

CBy horizon:
Hue: 2.5Y
Value: 5 through 7 dry, 4 through 6 moist
Chroma: 2 through 5 dry, 2 through 4 moist
Texture: parachannery clay loam,
Clay content: 27 to 35 percent
Rock fragments: 15 to 35 percent total; 0 to 10 percent channers
Pararock fragments: 15 to 35 percent parachanners
Calcium carbonate equivalent: 1 to 10 percent
Gypsum: 5 to 20 percent
Electrical conductivity: 0 to 8 mmhos/cm
Sodium adsorption ration: 0 to 3
Reaction: slightly or moderately alkaline

COMPETING SERIES: There are no competing series. Series in similar families include the Claunch and TenGallon series. Claunch soils are greater than 100 cm deep and have a superactive CEC class. TenGallon soils have carbonatic mineralogy.

GEOGRAPHIC SETTING:
Parent material: Slope alluvium over residuum derived from gypsiferous Mancos shale and interbedded sandstone.
Landform: shoulders and crests of shale hills
Slopes: 2 to 20 percent
Elevation: 1,463 to 1,890 meters
Mean annual temperature: 7.2 to 10.0 degrees C
Mean annual precipitation: 15 to 23 cm
Precipitation pattern: Wettest months are July to October and driest months are December and June.
Frost-free period: 120 to 150 days

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Persayo, Vickel, and Casmos series.
Persayo and Casmos soil depth: shallow.
Vickel: does not have a calcic or gypsic horizon.
Persayo and Vickel geomorphic position: shale hillsides.
Casmos parent material: interbedded sandstone and shale and are typically associated with sandstone rock outcrop.

DRAINAGE AND PERMEABILITY: Well drained, medium or high runoff, moderately slow permeability.

USE AND VEGETATION: Used for wildlife and livestock grazing. Native vegetation consists of shadscale, galleta, Castle Valley saltbush, Indian ricegrass, Torrey Mormon tea, small green rabbitbrush, and spiny horsebrush.

DISTRIBUTION AND EXTENT: Southeastern Utah, Warm Central Desertic Basins and Plateaus; LRR D, MLRA 34B; small extent; about 290 hectares (700 acres) in Emery County, Utah.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana

SERIES ESTABLISHED: Emery County, Utah, Emery area soil survey, Utah, 2011. The name Odome comes from Oil Well Dome, a nearby topographic feature.

REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Series control section: The zone from 0 to 85 cm.
Particle-size control section: The zone from 25 to 60 cm (part of By, and Cy horizons)
Ochric epipedon: The zone from 0 to 4 cm. (A horizon)
Calcic horizon: The zone from 4 to 20 cm. (Bk horizon)
Gypsic horizon: The zone from 20 to 60 cm. (By and CBy horizons)
Paralithic contact: The contact with weathered shale at 60 cm. (Cr horizon)

While individual subhorizons may contain up to 25 percent gypsum, the mineralogy control section averages 5 to 15 percent gypsum. More soil sampling and/or lab sampling are needed to more accurately define the mineralogy.

The assignment of the cation-exchange activity class is inferred from lab data from similar soils in the surrounding area.

Taxonomic Version: Eleventh edition, 2010

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National Cooperative Soil Survey
U.S.A.