LOCATION GOOSENAWT IDEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Cumulic Haploxerolls
TYPICAL PEDON: Goosenawt gravelly loam on a 1 percent slope in cropland at 4,700 feet elevation. (Color is for dry soil unless otherwise noted. When described on May 24, 1979 the soil was dry to 8 inches and moist below.)
A1--0 to 3 inches; gray (10YR 5/1) gravelly loam, very dark grayish brown (10YR 3/2) moist; weak fine granular structure; soft, very friable, slightly sticky and slightly plastic; many very fine, common fine, and few medium roots; many very fine and fine tubular pores; 1 to 2 cm thick gravel lens; 15 percent gravel; slightly alkaline (pH 7.8); clear smooth boundary.
A2--3 to 13 inches; dark gray (10YR 4/1) gravelly loam, very dark gray (10YR 3/1) moist; moderate fine granular structure; slightly hard, very friable, slightly sticky and slightly plastic; many very fine and common fine roots; many very fine and fine tubular pores; 2 cm thick, light brownish gray (10YR 6/2) moist continuous silt loam lens at about 3 inches; 20 percent gravel; slightly alkaline (pH 7.8); abrupt smooth boundary.
A3--13 to 24 inches; gray (10YR 5/1) gravelly loam, very dark gray (10YR 3/1) moist; weak medium granular structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and fine roots; common fine tubular pores; 2.5 cm thick, dark grayish brown (10YR 4/2) moist discontinuous laminated fine sandy loam lens, at about 23 inches; 1 to 2 cm thick gravelly lens; 25 percent gravel; slightly alkaline (pH 7.6); abrupt smooth boundary. (Combined thickness of the A horizons is 20 to 34 inches)
2Ab1-- 24 to 42 inches; very dark gray (10YR 3/1) clay loam, black (10YR 2/1) moist; weak coarse subangular blocky structure; hard, firm, sticky and plastic; few very fine, fine, and medium roots; common fine tubular pores; 1 to 2 cm thick gravelly lens; 5 percent gravel; slightly alkaline (pH 7.4); clear smooth boundary.
2Ab2--42 to 58 inches; dark gray (10YR 4/1) clay loam, very dark gray (10YR 3/1) moist; weak fine subangular blocky structure parting to moderate medium granular; hard, friable, sticky and plastic; few very fine and fine, and common medium roots; common medium tubular pores; 1 to 2 cm thick gravelly lens; 5 percent gravel; slightly alkaline (pH 7.4); abrupt smooth boundary. (Combined thickness of the 2Ab horizons is 12 to 42 inches)
2Bk1-- 58 to 64 inches; light brownish gray (10YR 6/2) silt loam, olive brown (2.5Y 4/4) moist; massive; slightly hard, very friable, slightly sticky and slightly plastic; few very fine, fine, and medium roots; few fine tubular pores; 1 to 2 cm thick gravelly lens; 5 percent gravel; many soft lime mycelia and splotches; strong effervescence; slightly alkaline (pH 7.4); clear smooth boundary. ( 0 to 8 inches thick)
2Bk2--64 to 74 inches; pale brown (10YR 6/3) loam, dark grayish brown (2.5Y 4/2) moist; massive; slightly hard, very friable, slightly sticky and slightly plastic; few very fine and fine, and common medium roots; common fine tubular pores; 1 to 2 cm thick gravelly lens; 10 percent gravel; slight effervescence; slightly alkaline (pH 7.4).
TYPE LOCATION: Oneida County, Idaho; about 2 miles north and 1 mile east of Malad City, Idaho, about 1,200 feet west and 300 feet south of the northeast corner of section 10, T.14S., R.36E. Latitude - 42 degrees, 13 minutes, 40 seconds North; Longitude - 112 degrees, 13 minutes, 58 seconds West.
RANGE IN CHARACTERISTICS:
Thickness of the mollic epipedon - 32 to 60 inches
Depth to secondary lime - 35 to 65 inches
Average annual soil temperature - 47 to 51 degrees F.
Average summer soil temperature - 63 to 66 degrees F.
Particle-size control section:
Clay content average - 20 to 30 percent (total clay)
Rock fragments average - 5 to 20 percent
A horizon:
Value - 4 or 5 dry
Chroma - 1 or 2 dry or moist
Reaction - slightly or moderately alkaline
Ab horizon:
Value - 3 or 4 dry, 2 or 3 moist
Bk horizon:
Hue - 2.5Y or 10YR
Chroma - 2 through 4 dry or moist
Reaction - slightly or moderately alkaline
Texture- SIL or L
COMPETING SERIES: These are the Birdow, Blackrock, Coit, Dagor, Eastcan, Goose Creek, Gosinta (T), Lakeview, Monroe (T), Oxy (T), Shoepeg (T), Soquel, and Willowdale series. Birdow soils are calcareous throughout. Blackrock soils contain 20 to 35 percent rock fragments in the particle-size control section. Coit soils have redoximorphic features at depths of 11 to 25 inches and are calcareous throughout. Dagor soils lack buried A horizons. Eastcan soils have redoximorphic features at depths of 24 to 40 inches and are calcareous throughout. Goose Creek soils have redoximorphic features below 24 inches and have a water table at 30 to 42 inches. Gosinta soils lack buried A horizons and have a water table at 2 to 4 feet. Lakeview soils lack buried A horizons and contain a component of volcanic ash. Monroe soils have an average summer soil temperature greater than 66 degrees F. and an aridic soil moisture regime. Oxy soils are moderately deep. Shoepeg soils have redoximorphic features at 20 to 36 inches and are somewhat poorly drained. Soquel soils have an average annual soil temperature of 54 to 58 degrees F. and are medium acid to neutral throughout. Willowdale soils have 10 to 20 percent pumice sand in the control section and are calcareous at 20 inches or less.
GEOGRAPHIC SETTING: Goosenawt soils are on bottomlands and alluvial fans. Slopes are 0 to 2 percent. Elevations ranges from 4,400 to 5,000 feet. The soils formed in mixed alluvium over lacustrine sediments. The average annual precipitation ranges from 13 to 16 inches, the average annual air temperature is 45 to 49 degrees F. and the frost free period is 110 to 130 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Broadhead, Manila and Sterling soils. Broadhead soils are on fan terraces and have more than 35 percent clay in the particle-size control section. Manila soils are on adjacent sideslopes and have an argillic horizon. Sterling soils have a calcic horizon and are on alluvial fans.
DRAINAGE AND PERMEABILITY: Well drained; slow runoff; moderately slow permeability. This soil is subject to rare, very brief flooding from March through April.
USE AND VEGETATION: Irrigated alfalfa, wheat and barley.
DISTRIBUTION AND EXTENT: Southeastern Idaho. These soils are not extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Oneida County, Idaho, 1994.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon (cumulic feature) - The zone from the soil surface to 58 inches (A1, A2, AC, 2Ab1 and 2Ab2 horizons).
Particle-size control section - The zone from 10 to 40 inches (part of the A2, the AC and part of the 2Ab1 horizons).
Goosenawt soils probably formed under moderately well drained conditions but are currently well drained due to natural down-cutting of streams.