LOCATION TAYLORSFLAT UTEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Xeric Haplocalcids
TYPICAL PEDON: Taylorsflat loam - rangeland. (Colors are for air-dry soil unless otherwise stated.)
A--0 to 5 inches; pale brown (10YR 6/3) loam, brown (10YR 4/3) moist; moderate medium and fine granular structure; hard, friable, slightly sticky and slightly plastic; few fine and medium roots; strongly effervescent; moderately alkaline; (pH 8.3); clear, wavy boundary. (3 to 10 inches thick)
Bw--5 to 20 inches; very pale brown (10YR 7/3) loam, brown (10YR 5/3) moist; weak medium and fine subangular blocky structure; hard, friable, slightly sticky and slightly plastic; few fine and medium roots; few fine pores; strongly effervescent; moderately alkaline (pH 8.4); clear wavy boundary. (5 to 17 inches thick)
Bk--20 to 33 inches; very pale brown (10YR 8/3) silty clay loam, light yellowish brown (10YR 6/4) moist; massive; hard, firm, slightly sticky and slightly plastic; few fine roots; few fine pores; violently effervescent; strongly alkaline (pH 8.6); clear smooth boundary. (5 to 42 inches thick)
2C--33 to 72 inches; very pale brown, light gray (10YR 7/2) silty clay loam, light brownish gray (10YR 6/2) moist; massive; very hard, firm, sticky and plastic; few gypsum flakes and crystals and few fine yellowish brown (10YR 5/6) mottles below depth of 48 inches; violently effervescent; strongly alkaline (pH 9.0). (This horizon is composed of lacustrine deposits.)
TYPE LOCATION: Millard County, Utah, about 3 miles southwest of Lynndyl. 1400 feet east and 1500 feet south of the NW corner of section 35, T15 S, R5 W.; lat. 39 degrees 27 minutes 41.95 seconds N. and long. 112 degrees 22 minutes 53.04 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry, moist for brief periods in the winter and spring. Aridic bordering xeric soil moisture regime.
Soil temperature: 8 to 12 degrees C.
Depth to calcic horizon: 25 to 62 centimeters
Particle-size control section (weighted average):
Clay content: 18 to 35 percent
Rock fragments: 0 to 15 percent
A horizon:
Hue: 10YR or 7.5YR
Value: 5 or 6 dry; 3 to 5 moist
Chroma: 2 to 4
EC (mmhos/cm): 0 to 4
Calcium carbonate equivalent: 3 to 20 percent
Reaction: Slightly alkaline to strongly alkaline
Bw horizon:
Hue: 10YR or 7.5YR
Value: 5 to 7 dry; 3 to 5 moist
Chroma: 3 or 4
Texture: Loam or silt loam with more than 15 percent fine sand or coarser
Clay content: 18 to 27; carbonate clay ranges from 1 to 3 percent
Rock fragments: 0 to 15 percent
EC (mmhos/cm): 0 to 4
Calcium carbonate equivalent: 3 to 25 percent
Reaction: Slightly alkaline to strongly alkaline
Bk horizon:
Hue: 10YR or 7.5YR
Value: 6 to 8 dry; 4 to 7 moist
Chroma: 2 to 4
Texture: Loam, clay loam, silt loam, or silty clay loam with more than 15 percent fine sand or coarser
Clay content: 20 to 35; carbonate clay ranges from 2 to 10 percent
Rock fragments: 0 to 15 percent
EC (mmhos/cm): 0 to 4; some pedons have EC ranging to 16
Calcium carbonate equivalent: 15 to 40 percent and is 5 percent or more greater than the underlying horizons
Visible secondary carbonates: None to many filaments and masses
Stage of carbonate accumulation: Stage 2
Reaction: Moderately alkaline or strongly alkaline; some pedons range to very strongly alkaline
C horizon:
Hue: 10YR or 7.5YR
Value: 5 to 8 dry; 4 to 6 moist
Chroma: 2 to 4
Texture: Loam, clay loam, silt loam, or silty clay loam with more than 15 percent fine sand or coarser. Some pedons have horizons below 100cm that are stratified gravelly sandy loam to very gravelly coarse sand
Clay content: 18 to 35; carbonate clay ranges from 1 to 10 percent
Rock fragments: 0 to 15 percent
EC (mmhos/cm): 0 to 4 mmhos/cm; some pedons have EC ranging to 16
Calcium carbonate equivalent: 10 to 40 percent
Reaction: Moderately alkaline or strongly alkaline; some pedons range to very strongly alkaline
COMPETING SERIES: These are Firmage(UT), Komo (T UT), and Potratz (ID) series. Firmage soils have 15 to 35 percent rock fragments in the particle-size control section. Komo soils have hue of 7.5YR or redder and have 15 to 35 percent rock fragments. Potratz soils formed in loess and material weathered from basalt.
GEOGRAPHIC SETTING: Taylorsflat soils are on nearly level to undulating fan skirts, alluvial flats, and lake plains at elevations of 4,300 to 6,000 feet. Slopes range from 0 to 8 percent. These soils formed in alluvium and lacustrine sediment from a wide range of rock formations. The climate is semiarid. Average annual precipitation is 8 to 12 inches. Mean annual air temperature is 45 to 52 degrees F, and the freeze-free period is 100 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are Birdow, Checkett, Diveno, Harding, Hiko Peak, Mellor, Oasis, Spager and Wales soils. Checkett and Divino soils have argillic horizons. Mellor and Harding soils have natric horizons. Oasis soils are coarse-loamy and lack a calcic horizon. Hiko Peak soils are gravelly throughout. Spager soils have a carbonate cemented hardpan. Birdow soils are loamy throughout and have a thick mollic epipedon. Wales soils lack a calcic horizon.
DRAINAGE AND PERMEABILITY: Well drained; slow or medium runoff; slow to moderate permeability.
USE AND VEGETATION: Used as range, irrigated cropland and wildlife habitat. Natural vegetation is mainly sagebrush, yellowbrush, shadscale, sand dropseed, needleandthread and some juniper.
DISTRIBUTION AND EXTENT: Western Utah. These soils are moderately extensive. MLRA 28A and 28B.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: East Millard Area, Utah, 1949.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: The zone from the soil surface to a depth of 5 inches. (A horizon)
Cambic horizon: The zone from a depth of 5 inches to a depth of 20 inches. (Bw horizon)
Calcic horizon: The zone of calcium carbonate accumulation from a depth of 20 inches to a depth of 33 inches. (Bk horizon)
Xeric feature: Soil moisture regime is Aridic bordering Xeric.
Particle-size control section: The zone from 10 to 40 inches (part of Bw, Bk, and part of 2C horizons.)