LOCATION GONZALES AZEstablished Series
TAXONOMIC CLASS: Clayey, smectitic, thermic, shallow Ustic Haplocambids
TYPICAL PEDON: Gonzales very cobbly sandy clay loam-rangeland. (Colors are for dry soil unless otherwise noted.)
A--0 to 1 inch; reddish gray (5YR 5/2) very cobbly sandy clay loam, dark reddish brown (5YR 3/2) moist; moderate fine granular structure; slightly hard, friable, moderately sticky and moderately plastic; many very fine roots; many very fine irregular pores; 20 percent cobble and 25 percent gravel; neutral (pH 7.0); abrupt wavy boundary. (1 to 3 inches thick)
Bw1--1 to 7 inches; dark reddish brown (5YR 3/2) clay, dark reddish brown (5YR 3/2) moist; moderate medium subangular blocky structure; hard, very firm, very sticky and very plastic; many very fine roots; common fine tubular pores; neutral (pH 7.0) clear wavy boundary. (4 to 7 inches thick)
Bw2--7 to 14 inches; reddish brown (5YR 4/4) clay, dark reddish brown (5YR 3/4) moist; strong medium subangular blocky structure; very hard, very firm, very sticky and very plastic; many very fine roots; few fine tubular pores; neutral (pH 7.0) abrupt wavy boundary. (7 to 10 inches thick)
2Cr--14 to 17 inches; weathered tuff.
2R--17 inches; tuff.
TYPE LOCATION: Mohave County, Arizona; about 21 miles northeast of Wikieup; 2,500 feet east and 200 feet south of the northwest corner of Section 14, T. 17 N., R. 11W.
RANGE IN CHARACTERISTICS:
Soil Moisture: Intermittently moist in some part of the soil moisture control section during July-September and December-February. Driest during May and June. Ustic aridic moisture regime.
Rock Fragments: Averages less than 15 percent in the control section
Soil Temperature: 59 to 63 degrees F.
Depth to bedrock: 10 to 20 inches
Organic matter: Less than 3 percent in the surface
A horizon
Hue: 5YR, 7.5YR
Value: 4 or 5 dry
Chroma: 2 or 3, dry or moist
B horizon
Hue: 5YR, 7.5YR
Value: 2 through 4, dry or moist
Chroma: 2 through 4, dry or moist
Texture: Clay, sandy clay (40 to 55 percent clay)
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: Gonzales soils are on hills and mountains at elevations of 3,800 to 5,800 feet. These soils formed in alluvium from tuff, breccia, basalt, and andesite. Slopes range from 5 to 35 percent. The mean annual precipitation is 12 to 16 inches. The mean annual air temperature is 57 to 61 degrees F. The frost-free period is 180 to 210 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bonita and Whitehouse soils. Bonita soils are deep. Whitehouse soils have an argillic horizon.
DRAINAGE AND PERMEABILITY: Well drained; very high runoff; Slow permeability.
USE AND VEGETATION: Gonzales soils are used for livestock grazing and wildlife habitat. The present vegetation is Juniper, beargrass, Turbinella oak, beaver tail, and Tobosa.
DISTRIBUTION AND EXTENT: Northwestern Arizona. This series is of moderate extent. MLRA is 38.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: Mohave County, Arizona. Soil survey of Mohave County, AZ, Central Part; 2005.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from 0 to 1 inch (A horizon)
(organic matter content is too low for a mollic epipedon)
Cambic horizon - The zone from 1 to 14 inches (B horizon)
Paralithic Contact - The boundary at 14 inches (Cr horizon)
Lithic contact - The boundary at 17 inches (R horizon)
The series was originally proposed in Mohave County, Arizona, Southern Part, 1986.
Classified according to Keys to Soil Taxonomy Ninth Edition, 2003