LOCATION GLENWOOD UTTentative Series
TAXONOMIC CLASS: Coarse-loamy over sandy or sandy-skeletal, mixed, superactive, calcareous, mesic Xeric Torriorthents
TYPICAL PEDON: Glenwood fine sandy loam--irrigated cropland. (Colors are for air-dry soil unless otherwise stated.)
Ap--0 to 13 cm; yellowish brown (10YR 5/4) fine sandy loam, dark yellowish brown (10YR 3/4) moist; weak fine granular structure; slightly hard, very friable, slightly sticky and nonplastic; many very fine and fine and few medium roots; many very fine and fine interstitial and tubular pores; 5 percent gravel; strongly effervescent; carbonates are disseminated; moderately alkaline (pH 8.2); clear smooth boundary. (8 to 20 cm thick)
C1--13 to 48 cm; brown (10YR 5/3) fine sandy loam, brown (10YR 4/3) moist; weak fine subangular blocky structure; slightly hard, very friable, slightly sticky and nonplastic; common very fine and fine and few medium roots; strongly effervescent, carbonates are disseminated; moderately alkaline (pH 8.2); abrupt smooth boundary. (20 to 50 cm thick)
2C2-- 48 to 73 cm; light brownish gray (10YR 6/2) loamy fine sand, grayish brown (10YR 5/2) moist; single grain; loose, nonsticky and nonplastic; few very fine and fine roots; 5 percent gravel; strongly effervescent, carbonates are disseminated; moderately alkaline (pH 8.4); abrupt smooth boundary. (15 to 50 cm thick)
3C3--73 to 150 cm; multicolored very gravelly coarse sand; single grain; loose, nonsticky and nonplastic; 50 percent gravel, 7 percent cobbles; slightly effervescent, carbonates are on undersides of rock fragments; moderately alkaline (pH 8.4).
TYPE LOCATION: Sevier County, Utah, about 1 mile south of Joseph, Utah; 2,300 feet north and 900 feet east of the southwest corner of sec. 23, T. 25 S., R. 4 W.; USGS Antelope Range quadrangle; latitude 38 degrees 36 minutes 32 seconds N and longitude 112 degrees 12 minutes 51 seconds W; NAD 83.
RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry; moist in winter and spring and for brief periods in late summer due to convection storms; aridic bordering on xeric soil moisture regime.
Mean annual soil temperature: 9 to 12 degrees C.
Depth to strongly contrasting sandy textures: 45 to 68 cm
Particle-size control section (weighted average):
Upper part:
Clay content: 10 to 18 percent
Rock fragments: 0 to 15 percent
Lower part:
Clay content: 0 to 5 percent
Rock fragments: 5 to 60 percent
A horizon
Hue: 7.5YR or 10YR.
Value: 5 or 6 dry, 4 or 5 moist.
Chroma: 2 to 4.
Calcium carbonate equivalent: 1 to 15 percent.
C horizon
Hue: 7.5YR or 10 YR.
Value: 5 or 6 dry, 4 or 5 moist.
Chroma: 2 to 4.
Texture: Fine sandy loam, very fine sandy loam, or loam
Clay content: 10 to 18 percent; does not increase relative to the overlying A horizons.
Rock fragments: 0 to 15 percent gravel.
Calcium carbonate equivalent: 1 to 15 percent.
Other features: Does not have an increase in clay or have higher chroma, higher value, or redder hue than the overlying A horizons, nor does it have evidence of removal of carbonates (lacks cambic horizon features).
2C horizon (when present)
Hue: 7.5YR or 10YR.
Value: 5 or 6 dry, 4 or 5 moist.
Chroma: 2 to 4.
Texture: Fine sand, sand, or loamy fine sand.
Rock fragments: 0 to 15 percent gravel.
Clay content: 0 to 5 percent.
Calcium carbonate equivalent: 1 to 15 percent.
3C horizon (when present)
Hue: Varies widely in color.
Texture: Very gravelly or extremely gravelly sand, coarse sand, or loamy sand
Rock fragments: 40 to 65 percent gravel and 0 to 15 percent cobbles.
Clay content: 0 to 5 percent.
Calcium carbonate equivalent: 1 to 15 percent.
COMPETING SERIES: These are the Cencove and Marsing series.
Cencove and Marsing soils have horizons with calcium carbonate accumulations and are not moist in the summer. In addition, Marsing soils do not include more than 35 percent rock fragments in the lower part of the particle size control section.
GEOGRAPHIC SETTING:
Parent material: Alluvium derived from sedimentary and igneous rocks
Landform: Stream terraces and fan skirts
Slopes: 0 to 5 percent
Elevation: 1,550 to 1,750 meters.
Mean annual temperature: 8 to 10.5 degrees C.
Mean annual precipitation: 200 to 300 mm.
Frost-free period: 100 to 140 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Annabella, Genola, Wrango and Medburn series. The Genola soils have a fine-silty particle-size control section. Annabella soils have a loamy-skeletal particle-size control section. Wrango soils have a sandy-skeletal particle-size control section. Medburn soils have a coarse-loamy particle-size control section.
DRAINAGE AND PERMEABILITY: Well drained, very low or low runoff, moderately rapid permeability above the lithologic discontinuity, very rapid permeability below the lithologic discontinuity; high saturated hydraulic conductivity.
USE AND VEGETATION: These soils are used principally for irrigated cropland. Principal crops are alfalfa, small grains, corn silage, and pasture. A minor amount of these soils is used for rangeland. Potential vegetation consists of shadscale, Wyoming big sagebrush, Indian ricegrass, and bottlebrush squirreltail.
DISTRIBUTION AND EXTENT: Central Utah; MLRA 28A. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES PROPOSED: Sevier County, Utah, soil survey area. 2008.
REMARKS:Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the surface to 18 cm. (Ap and part of C1 horizon horizon)
Particle-size control section - Upper part - the zone from 25 to 48 cm (part of the C1 horizon); lower part the zone from 48 to 100 cm (2C2 horizons and parts of the 3C3 horizon).
ADDITIONAL DATA: Laboratory sample 92UT041002 from Sevier County, Utah by SSL, Lincoln, NE, 07/92.