LOCATION KANARRA UTEstablished Series
TAXONOMIC CLASS: Fine, smectitic, mesic Calcic Argixerolls
TYPICAL PEDON: Kanarra sandy clay loam - rangeland. (Colors are for dry soil unless otherwise noted.)
Ap--O to 18 cm; brown (7.5YR 5/3) sandy clay loam, dark brown (7.5YR 3/3) moist; moderate thin platy structure parting to moderate very fine granular; slightly hard, friable, slightly sticky and slightly plastic; few fine, common very fine roots; common fine pores; moderately alkaline (pH 8.2); abrupt smooth boundary. (18 to 25 cm thick)
Bt1--18 to 28 cm; brown (7.5YR 5/2) clay loam, dark brown (7.5YR 3/2) moist; moderate coarse prismatic structure parting to strong very fine angular blocky; very hard, firm, moderately sticky and moderately plastic; few fine and very fine roots; few fine and common very fine pores; continuous moderately thick clay films on faces of peds; moderately alkaline (pH 8.2); clear smooth boundary. (10 to 23 cm thick)
Bt2--28 to 51 cm; brown (7.5YR 5/4) clay loam, dark brown (7.5YR 3/4) moist; moderate coarse prismatic structure parting to strong fine angular blocky; very hard, firm, moderately sticky and moderately plastic; few fine and very fine roots; few fine, common very fine pores; continuous moderately thick clay films; moderately alkaline (pH 8.3); abrupt wavy boundary. (10 to 28 cm thick)
Btk--51 to 61 cm; light brown (7.5YR 6/4) clay loam, dark brown (7.5YR 3/3) moist; moderate medium subangular blocky structure; very hard, firm, moderately sticky and moderately plastic; few very fine roots; common fine and medium pores common moderately thin clay films on faces of peds; strongly effervescent; strongly alkaline (pH 8.6); clear wavy boundary. (8 to 13 cm thick)
Bk2--61 to 86 cm; pink (7.5YR 8/3) clay loam, light brown (7.5YR 6/3) moist; weak thin platy structure parting to weak medium subangular blocky; weakly cemented, firm, moderately sticky and moderately plastic; few fine and very fine roots; few medium, fine and very fine pores; strongly effervescent, carbonates are disseminated; strongly alkaline (pH 8.8); gradual smooth boundary. (20 to 30 cm thick)
Bk3--86 to 117 cm; pink (7.5YR 8/3) clay loam, light brown (7.5YR 6/4) moist; massive; weakly cemented, friable, moderately sticky and moderately plastic; few medium, common medium fine and very fine pores; violently effervescent, carbonates are disseminated; strongly alkaline (pH 8.9); gradual wavy boundary. (25 to 36 cm thick)
Bk4--117 to 152 cm; pink (7.5YR 7/4) clay loam, light brown (7.5YR 6/4) moist; massive; very hard, friable, slightly sticky and slightly plastic; few medium common fine and many very fine pores; violently effervescent, carbonates are disseminated; strongly alkaline (pH 9.0)
TYPE LOCATION: Iron County, Utah; 0.6 mile north of the Kanarraville overpass, along frontage road, in borrow pit, 2200 feet south and 1240 feet west of the NE corner of section 22, T. 37 S., R. 12 W; USGS Kanarraville, Utah 7.5 minute quadrangle; latitude 37 degrees 33 minutes 60 seconds N and longitude 113 degrees 11 minutes 2 seconds W; NAD 83.
RANGE IN CHARACTERISTICS:
Soil moisture: Moist in winter and spring and continuously dry in all parts for significant periods in summer and fall; xeric soil moisture regime bordering aridic.
Mean annual soil temperature: 8.0 to 10.5 degrees C.
Mean summer soil temperature: 20.5 to 21.5 degrees C.
Thickness of mollic epipedon: 25 to 41 cm.
Depth to secondary carbonates: 30 to 76 cm.
Particle-size control section - Clay content: 35 to 45 percent.
Rock fragments: 0 to 15 percent, mainly gravel.
A horizon
Hue: 7.5YR or 10YR.
Value: 3 to 5 dry, 2 or 3 moist.
Chroma: 2 or 3.
Reaction: neutral through moderately alkaline.
Bt and Btk horizon
Hue: 7.5YR or 10YR.
Value: 4 or 6 dry, 2 to 4 moist.
Chroma: 2 to 4.
Texture: Clay loam and clay.
Clay content: 35 to 45 percent
Rock fragments: 0 to 15 percent, mainly gravel and cobbles.
Reaction: Slightly alkaline to strongly alkaline.
Bk horizon
Hue: 5YR to 10YR.
Value: 5 through 8 dry, 4 through 6 moist.
Chroma: 2 through 4.
Texture: Loam, clay loam or sandy clay loam.
Clay content: 20 to 35 percent.
Rock fragments: 0 to 15 percent, mainly gravel and cobbles.
Calcium carbonate equivalent: 15 to 40 percent, weakly cemented in places.
Reaction: Moderately alkaline or strongly alkaline.
C horizon (present in some pedons and will underlie Bk horizon at depths of 74 to 117 cm):
Texture: clay loam, sandy clay loam, loam or gravelly sandy clay loam.
Rock fragments: 5 to 25 percent, mainly gravel and cobbles.
COMPETING SERIES: These are the Banner, Dangulch, Flowell, Gem and Gemson series.
Banner soils have dominantly silty clay loam and silty clay textures and gravelly loam 2C horizons. Dangulch soils have a paralithic contact at 100 to 150 cm. Flowell soils have dominantly silty clay loam textures and 5YR surface horizons. Gem soils are moderately deep to basalt. Gemson soils have an argillic horizon to 150 cm or more.
GEOGRAPHIC SETTING: Kanarra soils are at elevations of 1,650 to 2,350 meters. They occur on fan remnants, structural benches, and mountain slopes and formed in alluvium and colluvium derived from intermediate igneous rocks. Slopes range from 1 to 25 percent. The average annual precipitation is 300 to 400 mm. The mean annual temperature is 7.0 to 9.5 degrees C., and the frost-free period is 100 to 130 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Birdow, Hiko Peak, Red Butte and Sandall soils and the competing Doyce soils. Red Butte Hiko Peak and Sandall soils are loamy-skeletal. Birdow soils lack calcic horizon.
DRAINAGE AND PERMEABILITY: Well drained; low runoff; slow permeability; moderately low saturated hydraulic conductivity.
USE AND VEGETATION: These soils are used mainly for rangeland and dryland pasture seeded to crested wheatgrass, irrigated cropland wildlife habitat. The native vegetation is dominantly big sagebrush, scattered juniper, serviceberry, and cheatgrass. These soils are correlated to upland ecological sites in Utah.
DISTRIBUTION AND EXTENT: Southwestern Utah. This series is inextensive. MLRA 28A.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: Iron County, Utah, 1997; Iron-Washington Soil Survey Area.
Remarks: Diagnostic horizons and feature recognized in this pedon are:
Mollic epipedon - The zone from the surface of the soil to 28 cm (Ap and Bt1 horizons).
Argillic horizon - The zone from 18 to 61 cm (Bt1, Bt2 and Btk horizons).
Calcic horizon - The zone from 61 to 152 cm (Bk1 and Bk2 horizons).
Particle-size control section - The zone from 18 to 61 cm (Bt1, Bt2, and Btk horizons)
The classification is based on the "Keys to Soil Taxonomy, Tenth Edition, 2006".