LOCATION WIKIEUP AZEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, nonacid, thermic, shallow Typic Torriorthents
TYPICAL PEDON: Wikieup extremely cobbly coarse sandy loam - rangeland. (Colors are for dry soil unless otherwise noted.)
A--0 to 1 inch; yellowish brown (10YR 5/4) extremely cobbly coarse sandy loam, dark yellowish brown (10YR 4/4) moist; weak fine granular structure; loose, very friable, nonsticky and nonplastic; common very fine roots; common very fine tubular pores; 45 percent gravel and 25 percent cobble; noneffervescent; moderately alkaline (pH 8.0); abrupt smooth boundary. (1 to 2 inches thick)
C--1 to 5 inches; yellowish brown (10YR 5/4) very gravelly coarse sandy loam, dark yellowish brown (10YR 4/4) moist; massive; loose, very friable, nonsticky and nonplastic; common very fine roots; common very fine tubular pores; 35 percent gravel; noneffervescent; moderately alkaline (pH 8.0); abrupt smooth boundary. (3 to 18 inches thick)
2Cr--5 to 8 inches; weathered granite. (3 to 16 inches thick)
2R--8 inches; granite.
TYPE LOCATION: Mohave County, Arizona; located at a latitude of 35 degrees, 02 minutes, 03 seconds North and a longitude of 114 degrees, 04 minutes, 17 seconds West.
RANGE IN CHARACTERISTICS:
Soil Moisture: Intermittently moist in some part of the soil moisture control section during December - February and for less than 20 days cumulative during July - September. Driest during May and June. Typic aridic soil moisture regime.
Soil Temperature: 61 to 72 degrees F.
Depth to paralithic contact: 4 to 20 inches
Depth to lithic contact: 6 to 20 inches
Reaction: neutral to moderately alkaline
Dark colors are considered to be lithochromic
A horizon
Hue: 10YR, 7.5YR
Value: 5 or 6 dry, 3 to 5 moist
Chroma: 3 or 4, dry or moist
Rock fragments: 35 to 70 percent gravel and cobble
C horizon
Hue: 10YR, 7.5YR
Value: 5 or 6 dry, 3 to 5 moist
Chroma: 2 to 4, dry or moist
Texture: sandy loam, coarse sandy loam, loam
Rock fragments: 35 to 60 percent, dominantly gravel
COMPETING SERIES: These are the Fig (AZ) and Nolena (NV) soils. Fig soils do not have a lithic contact. Nolena soils average more than 60 percent gravel in the control section.
GEOGRAPHIC SETTING: Wikieup soils are on pediments, hills and mountains. Slopes range from 3 to 60 percent. These soils formed in mixed igneous and metamorphic alluvium and colluvium. Elevations range from 2,400 to 5,400 feet. The mean annual precipitation is 6 to 12 inches. The mean annual air temperature is 59 to 70 degrees F. The frost-free period is about 180 to 250 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Arizo, Castaneda, Franconia, Goodsprings and Orwash soils. Arizo, Franconia and Orwash soils are very deep. Castaneda soils are moderately deep to a petrocalcic hardpan. Goodsprings soils are shallow to a petrocalcic hardpan.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained; very high runoff; moderately rapid permeability.
USE AND VEGETATION: Used for livestock grazing and wildlife habitat. Vegetation includes big galleta, desert needlegrass, Parish threeawn, flattop buckwheat, Nevada Mormon tea and Parish goldeneye.
DISTRIBUTION AND EXTENT: Northwestern Arizona. This series is of moderate extent. MLRA is 30. The name is from a local town.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: Mohave County, Arizona; Soil survey of Mohave County, Arizona, Central Part; 2005.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from 0 to 1 inch (A horizon)
Paralithic contact - The boundary at 5 inches (2Cr horizon)
Lithic contact - The boundary at 8 inches (2R horizon)
Entisol feature - The absence of diagnostic subsurface horizons
Series originally proposed in Mohave County, Arizona; Soil survey of Mohave County, Arizona, Southern Part; 1993.
Classified according to Keys to Soil Taxonomy Ninth Edition, 2003.