LOCATION TUZIGOOT AZ
Established Series
Rev. DRT/BAL
08/2012
TUZIGOOT SERIES
The Tuzigoot series consists of very deep, well drained soils formed in alluvium from lacustrine sediments. Tuzigoot soils are on fan remnants and have slopes of 0 to 40 percent. The mean annual precipitation is about 13 inches and the mean annual air temperature is about 62 degrees F.
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, thermic Ustic Haplocalcids
TYPICAL PEDON: Tuzigoot silt loam - rangeland (colors are for dry soil unless otherwise noted).
A--0 to 5 inches; yellowish brown (10YR 5/4) silt loam, dark yellowish brown (10YR 4/4) moist; moderate medium platy structure; soft, very friable, moderately sticky and moderately plastic; many very fine and fine roots; many very fine and fine vesicular and tubular pores; violently effervescent; moderately alkaline (pH 8.4); clear smooth boundary (4 to 6 inches thick).
Bkc1--5 to 17 inches; brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; moderate medium subangular blocky structure; soft, very friable, moderately sticky and moderately plastic; many very fine and fine roots; common fine tubular pores; few fine and medium calcium carbonate concretions; violently effervescent; moderately alkaline (pH 8.4); clear smooth boundary (10 to 13 inches thick).
Bkc2--17 to 29 inches; pale brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; weak medium subangular blocky structure; soft, very friable, moderately sticky and moderately plastic; common very fine and fine roots; common fine tubular pores; common fine and medium calcium carbonate concretions; violently effervescent; strongly alkaline (pH 8.6); clear smooth boundary (10 to 15 inches thick).
Bkc3--29 to 45 inches; light brown (7.5YR 6/4) loam, brown (7.5YR 4/4) moist; weak fine subangular blocky structure; soft, very friable, moderately sticky and moderately plastic; common very fine and fine roots; common fine tubular pores; common fine and medium calcium carbonate concretions; violently effervescent; strongly alkaline (pH 8.6); clear smooth boundary (14 to 18 inches thick).
Bkc4--45 to 60 inches; pink (7.5YR 7/4) clay loam, brown (7.5YR 5/4) moist; massive; soft, friable, moderately sticky and moderately plastic; few very fine and fine roots; few fine tubular pores; many fine and medium calcium carbonate concretions; violently effervescent; moderately alkaline (pH 8.4).
TYPE LOCATION: Yavapai County, Arizona; located about 1,115 feet south and 2,540 feet east of the NW corner of Section 1, T. 15 N., R. 3 E.; 34 degrees, 43 minutes, 44.7 seconds north latitude; 111 degrees, 58 minutes, 59.8 seconds west longitude.
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 soil moisture regime.
Soil temperature - 62 to 65 degrees F.
Clay content: Averages 18 to 27 percent in the particle-size control section
Rock fragments - 0 to 35 percent gravel in any one horizon, averages less than 35 percent in the control section.
Depth to calcic horizon less than 10 inches.
A horizon
Hue: 7.5YR, 10YR
Value: 5 or 6 dry, 3 or 4 moist
Chroma: 3 or 4, dry or moist
Organic matter: 1 to 2 percent
Calcium carbonate equivalent: 2 to 5 percent
Bkc horizons
Hue: 7.5YR, 10YR
Value: 5 to 7 dry, 3 to 5 moist
Chroma: 3 or 4, dry or moist
Organic matter: 0.1 to 0.5 percent
Reaction: moderately alkaline or strongly alkaline
Calcium carbonate equivalent: 5 to 30 percent
Electrical conductivity: 0 to 4 dS/m
Texture: loam, silt loam, silty clay loam, clay loam with less than 35 percent sand
Some pedons may have bedrock at 50 to 60 inches.
COMPETING SERIES: These are the
Chispa (TX),
Elfrida (AZ),
Kahn (AZ),
Laborcita (NM),
Pandale (TX),
Ratliff (TX),
Salado (NM) and San Jon (NM) series. Pandale, Ratliff, and San Joh soils are moist in the soil moisture control section during
May and June and occur in the Great
Plains. Chispa, Elfrida, Kahn, Laborcita, and Salado soils do not have calcium carbonate concretions throughout the profile. Kahn and Salado soils have less than 1 percent organic matter in the surface horizons.
GEOGRAPHIC SETTING: Tuzigoot soils are on fan remnants with slopes of 0 to 40 percent. They formed in alluvium from lacustrine sediments of the Verde formation. Elevation ranges from 3000 to 4000 feet. Mean annual precipitation is 12 to 14 inches. Mean annual air temperature is 60 to 63 degrees F. The frost-free period is about 180 to 220 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Bissett and
Blancoverde soils. The Bissett soils are very shallow to limestone bedrock and are carbonatic. Blancoverde soils are shallow to dense lacustrine sediment and are lacking diagnostic horizons.
DRAINAGE AND PERMEABILITY: Well drained; slow to very rapid runoff; slow permeability.
USE AND VEGETATION: Used for wildlife habitat and urban development. Vegetation is creosotebush, winterfat, fourwing saltbush, mesquite and catclaw acacia.
DISTRIBUTION AND EXTENT: Central Arizona. Tuzigoot soils are of small extent. MLRA is 38.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: Yavapai County, Arizona; Soil Survey of Black Hills-Sedona Area, Arizona, Parts of Coconino and Yavapai Counties; 1996. The name is derived from Tuzigoot National Monument.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from 0 to 5 inches (A horizon)
Calcic horizon - the zone from 5 to 60 inches (Bkc1, Bkc2, Bkc3, Bkc4 horizons)
Classified according to Soil Taxonomy Second Edition, 1999; Keys to Soil Taxonomy Eleventh Edition, 2010.
The Tuzigoot series was proposed in 1961 and dropped in 1967. It was proposed again in 1975 and the name reserved in 1979. The type location has been moved to better reflect the series concept.
Updated competing series section 3/17/08, CEM
Revised for the correlation of Black Hills-Sedona, AZ, August 2012, CEM
National Cooperative Soil Survey
U.S.A.