LOCATION GLENYON AZEstablished Series
TAXONOMIC CLASS: Clayey over sandy or sandy-skeletal, mixed, superactive, calcareous, mesic Typic Torriorthents
TYPICAL PEDON: Glenyon silty clay loam - rangeland. (Colors are for dry soil unless otherwise noted.)
A--0 to 2 inches; yellowish red (5YR 5/6) silty clay loam, reddish brown (5YR 4/4) moist; moderate medium platy structure; soft, friable, slightly sticky and plastic; common very fine roots; few very fine tubular pores; slightly effervescent; strongly alkaline (pH 8.5); abrupt smooth boundary. (1 to 3 inches thick)
By--2 to 11 inches; strong brown (7.5YR 5/6) silty clay loam, brown (7.5YR 4/4) moist; weak coarse subangular blocky structure; hard, firm, sticky and plastic; common very fine roots; common very fine tubular pores; strongly effervescent; few gypsum crystals; strongly alkaline (pH 8.5); gradual smooth boundary. (8 to 10 inches thick)
Cy--11 to 34 inches; light brown (7.5YR 6/4) silty clay loam, brown (7.5YR 4/4) moist; massive; hard, firm, very sticky and very plastic; few very fine roots; few very fine tubular pores; few gypsum crystals; strongly effervescent; strongly alkaline (pH 8.6); clear smooth boundary. (17 to 23 inches thick)
2C1--34 to 45 inches; light brown (7.5YR 6/4) loamy sand; strong brown (7.5YR 5/6) moist; single grain; loose; slightly effervescent; moderately alkaline (pH 8.4); clear smooth boundary. (10 to 20 inches thick)
2C2--45 to 60 inches; light brown (7.5YR 6/4) loamy fine sand; strong brown (7.5YR 5/6) moist; massive; slightly hard, very friable; slightly effervescent; moderately alkaline (pH 8.4)
TYPE LOCATION: Coconino County, Arizona; about .25 mile north of Fredonia; 2000 feet west, 500 feet south of the southeast corner of section 8, T. 41 N., R. 2 W.
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. Typic aridic moisture regime.
Soil temperature - 53 to 58 degrees F.
Rock fragments - Less than 5 percent gravel
Depth to contrasting layer - 30 to 36 inches
Gypsum- 0 to 3 percent
Electrical conductivity - ranges to 7 dS/m
Texture- averages 35 to 40 percent clay above the contrasting layer and less than 20 percent sand in the particle-size control section. Below the contrasting layer is loamy sand or loamy fine sand averaging less than l5 percent clay.
A horizon
Hue: 5YR, 7.5YR
Value: 5 or 6 dry, 4 or 5 moist
Chroma: 3 through 6, dry or moist
B and C horizon
Hue: 5YR, 7.5YR
Value: 5 or 6 dry, 4 or 5 moist
Chroma: 3 through 6, dry or moist
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: Glenyon soils are on low stream terraces. These soils formed in stratified mixed alluvium of Holocene age. Slopes are 0 to 2 percent. Elevations are 4700 to 5000 feet. Mean annual precipitation is 7 to 11 inches in the form of summer thunderstorms and winter rain and snow. Mean annual air temperature is 52 to 57 degree F. Frost-free period is 140 to 180 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Mespun and Barx soils. Mespun soils are sandy. Barx soils are fine-loamy.
DRAINAGE AND PERMEABILITY: Well drained; slow runoff; moderately slow permeability. A seasonal irrigation induced water table may be present at depths of 20 inches or more.
USE AND VEGETATION: Used for livestock grazing and irrigated cropland. Vegetation is mainly greasewood, western wheatgrass, fourwing saltbush and blue grama.
DISTRIBUTION AND EXTENT: Northern Arizona. The Glenyon series is of small extent. MLRA 35.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: Coconino County, Arizona; Soil survey of Coconino County Area, North Kaibab Part; l985.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from 0 to 2 inches (A horizon)