LOCATION CLOYD UTEstablished Series
TAXONOMIC CLASS: Loamy, carbonatic, mesic Lithic Xeric Haplocalcids
TYPICAL PEDON: Cloyd gravelly loam - rangeland. (Colors are for air-dry soil unless otherwise stated.
A1--0 to 3 inches; dark brown (10YR 4/3) gravelly loam; pale brown (10YR 6/3) dry; weak fine granular structure; slightly hard, friable, slightly stickly, slightly plastic; common very fine roots; common very fine vesicular pores; slightly effervescent, 22 percent calcium carbonate equivalent; moderately alkaline (pH 8.0); 20 percent gravel; abrupt smooth boundary. ( 2 to 4 inches thick ).
A2--3 to 7 inches; dark brown (10YR 4/3) cobbly loam; pale brown (10YR 6/3) dry; weak fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; common very fine roots; common very fine tubular pores; strongly effervescent, 26 percent calcium carbonate equivalent; moderately alkaline (pH 8.2); 25 percent cobbles; clear smooth boundary. ( 4 to 8 inches thick ).
Bk--7 to 15 inches; yellowish brown (10YR 5/4) gravelly loam; light yellowish brown (10YR 6/4) dry; weak fine subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; few very fine roots; few very fine tubular pores; strongly effervescent, 47 percent calcium carbonate equivalent; moderately alkaline; (pH 8.4); 30 percent gravel; clear smooth boundary. ( 4 to 10 inches thick).
R--15 inches; Travertine limestone bedrock.
TYPE LOCATION: Millard County, Utah; about 5 miles southwest of town of Meadow; 1500 feet north and 200 feet east of the southwest corner of section 36, T.22S., R. 6 W.
lat. 38 degrees, 51 minutes, 08 seconds N.; long. 112 degrees, 29 minutes, 26 seconds W.
RANGE IN CHARACTERISTICS: Mean annual soil temperature ranges from 50 to 54 degrees F., and mean summer soil temperature ranges from 68 to 74 degrees F. The soil moisture regime is Aridic bordering on Xeric.
The particle size control section ranges from 18 to 27 percent clay. Depth to bedrock is 14 to 20 inches. Rock fragment content is 15 to 30 percent. Calcium carbonate equivalent is 40 to 50 percent in the particle size control section.
The A horizon has hue of 10YR, value of 5 or 6 dry and 3 or 4 moist, with chroma of 3 or 4. Coarse fragment content is 15 to 30 percent.
The Bk horizon has hue of 10YR, value of 5 or 6 dry, and 3 or 5 moist, with chroma of 3 or 4. Texture is cobbly or gravelly loam. Content of rock fragments is 20 to 30 percent. Reaction is moderately to strongly alkaline.
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: The Cloyd soils are on ridges and hillslopes. Slopes are 5 to 20 percent. The soil formed in residuum derived from travertine limestone. Elevation ranges from 4800 to 5000 feet. The mean annual precipitation ranges from 8 to 12 inches. The mean annual air temperature ranges from 48 to 52 degrees F. Freeze-free period is about 100 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Ashdown, Bandag, Deseret, Kanosh, Manassa and Mellor soils. Ashdown, Bandag and Manassa soils are very deep. Deseret soils are very deep and contain 18 to 35 percent clay and are influened with gypsum. Kanosh soils are very deep and are influenced with gypsum. Mellor soils are very deep and contain 27 to 35 percent clay and are influenced with sodium.
DRAINAGE AND PERMEABILITY: Well drained; very rapid runoff; moderate permeability.
USE AND VEGETATION: These soils are used principally for rangeland and quarring for travertine rock. Potential vegetation consists of Bluebunch wheatgrass, Indian ricegrass, and Black sagebrush.
DISTRIBUTION AND EXTENT: The Cloyd soils are located in west central, Utah. MLRA 28A. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: Millard County, Utah; Millard County, Eastern Part Soil Survey, 1995.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the soil surface to about 14 inches. (A1 and A2 horizons)
Calcic horizon - The zone of calcium carbonate accumulation from a depth of 7 inches to 14 inches. (Bk horizon)
Particle size control section - the zone from 10 to 14 inches. (A1, A2, Bk horizons)
The classification is based on the "Keys to Soil Taxonomy, Eighth Edition, 1998".