LOCATION ALOGIA WYEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, frigid Ustic Calciargids
TYPICAL PEDON: Alogia loam on a slightly concave west-facing slope of one percent with native vegetation utilized as rangeland. (Colors are for dry soil unless otherwise stated.)
A--0 to 3 inches; brown (7.5YR 5/4) loam, dark brown (7.5YR 4/3) moist; weak thin platy structure; soft, very friable, slightly sticky and slightly plastic; common fine and medium roots; slightly effervescent, carbonates disseminated; moderately alkaline (pH 8.0); abrupt smooth boundary. (2 to 3 inches thick)
Bt--3 to 7 inches; brown (7.5YR 5/4) loam, dark brown (7.5YR 4/3) moist; moderate medium subangular blocky structure; soft, friable, slightly sticky and slightly plastic; common fine and medium roots; few thick clay films line pores and root channels; strongly effervescent, carbonates disseminated; moderately alkaline (pH 8.2); clear smooth boundary. (0 to 13 inches thick)
Btk1--7 to 15 inches; light reddish brown (5YR 6/3) clay loam, reddish brown (5YR 4/3) moist; moderate medium and fine subangular blocky structure; soft, friable, sticky and plastic; few fine roots; common thin clay films on faces of peds; violently effervescent, carbonates disseminated (CaCO3 equivalent 13 percent); few fine small masses of gypsum; strongly alkaline (pH 8.6); clear smooth boundary. (8 to 23 inches thick)
Btk2--15 to 21 inches; light reddish brown (5YR 6/4) clay loam, reddish brown (5YR 4/4) moist; weak fine subangular blocky structure; soft, very friable, sticky and plastic; few fine roots; few thin clay films on faces of peds; strongly effervescent, carbonates disseminated (CaCO3 equivalent 17 percent); few fine small masses of gypsum; moderately alkaline (pH 8.4); gradual smooth boundary. (0 to 6 inches thick)
Bky1--21 to 31 inches; pink (7.5YR 7/4) loam, brown (7.5YR 5/4) moist; massive; slightly hard, friable, slightly sticky and nonplastic; violently effervescent, carbonates disseminated (CaCO3 equivalent 8 percent); many fine and medium small masses of gypsum; moderately alkaline (pH 8.2); gradual smooth boundary. (10 to 28 inches thick)
Bky2--31 to 41 inches; pink (5YR 7/3) loam, reddish brown (5YR 5/4) moist; massive; slightly hard, friable, slightly sticky and nonplastic; violently effervescent, carbonates disseminated (CaCO3 equivalent 15 percent); many fine and medium small masses of gypsum; moderately alkaline (pH 8.2); gradual smooth boundary. (0 to 38 inches thick)
2Cy--41 to 50 inches; reddish brown (2.5YR 5/4) clay loam, dark reddish brown (2.5YR 3/4) moist; massive; slightly hard, friable, sticky and plastic; strongly effervescent, carbonates disseminated (CaCO3 equivalent 5 percent); common fine small masses of gypsum; moderately alkaline (pH 8.2); gradual smooth boundary. (9 to 44 inches thick)
2C--50 to 60 inches; reddish yellow (5YR 6/6) clay loam, reddish brown (5YR 4/4) moist; massive; very hard, firm, sticky and plastic; strongly effervescent, carbonates disseminated; few fine small masses of gypsum; mildly alkaline (pH 7.6).
TYPE LOCATION: Albany County, Wyoming; 2600 feet north and 2150 feet east of SW corner of sec. 32, T. 15 N., R. 73 W.
RANGE IN CHARACTERISTICS: Depth to the base of the argillic horizon ranges from 13 to 21 inches. Secondary carbonates are being redeposited in the argillic horizon, and in some areas the depth to secondary carbonates is as shallow as two inches. Depth to gypsum and salts more soluble than gypsum typically ranges from 0 to 15 inches. The mean annual soil temperature ranges from 40 to 45 degrees F., and the mean summer soil temperature is 59 to 65 degrees F. These soils have a fluctuating seasonal water table at 40 to 60 inches. The gypsum content seems to preclude the development of gleyed colors in the substratum. These soils contain less than 5 percent pebbles throughout.
The A horizon has hue of 7.5YR or 5YR, value of 4 or 5 dry, 3 or 4 moist, and chroma of 4 through 6 dry and 2 through 6 moist. Reaction is mildly alkaline or moderately alkaline.
The Bt and Btk horizons have hue of 7.5YR or 5YR, value of 4 through 6 dry, 3 or 4 moist, and chroma of 4 through 6 dry and 3 through 6 moist. Texture is loam, clay loam, silt loam, or silty clay loam with 20 to 35 percent clay and 15 to 35 percent fine or coarser sand. Reaction is moderately alkaline or strongly alkaline. Electrical conductivity ranges from 2 to 8 mmhos/cm.
The Bky horizon has hue of 7.5YR or 5YR, value of 4 through 7 dry, 3 through 6 moist, and chroma of 3 through 8 dry and moist. Texture is loam or silt loam with 12 to 25 percent clay. Reaction is moderately alkaline. Electrical conductivity ranges from 4 to 8 mmhos/cm. Calcium carbonate equivalent ranges from 15 to 20 percent, and gypsum ranges from 10 to 20 percent.
The 2Cy and 2C horizons, if present, have hue of 2.5YR or 5YR, value of 4 through 6 dry, 3 through 5 moist, and chroma of 3 through 8 dry and moist. Texture may be variable and the C may be stratified in some pedons below 40 inches. Common textures are clay loam, loam, silt loam, and less commonly sandy loam. Reaction is mildly or moderately alkaline. Calcium carbonate equivalent ranges from 5 to 20 percent, and gypsum ranges from 10 to 20 percent.
COMPETING SERIES: These are the Alcova, Almy, Anchutz, Antonito, Bateson, Bluerim, Bonfri, Cushool, Cutback, Diamondville, Diamonkit, Fluetsch, Forelle, Harsha, Hickey, Rawah, Regnaps, Rock River, Satanka, Stunner, Stylite, and Wycolo. The Alcova and Bateson soils have more than 35 percent coarse fragments in the substrata. The Almy and Hickey soils do not have significant amounts of gypsum in the profile and are well drained. Antonito, Bluerim, Bonfri, Cushool, Cutback, Diamondville, Diamonkit, Rawah, Regnaps, Satanka, and Wycolo soils have bedrock between 20 and 40 inches. The Anchutz, Fluetsch, Forelle, Harsha, Rock River, Stunner, and Stylite soils have hues of 10YR, 2.5Y, and 5Y in the Bt horizon and are well drained.
GEOGRAPHIC SETTING: Alogia soils are on nearly level seep areas and drainages of alluvial fans and terraces adjoining flood plains. Slopes are 0 to 3 percent. Elevation is 6000 to 7,800 feet. The mean annual precipitation is about 12 inches. The mean annual temperature is about 42 degrees F. The frost-free season is 60 to 90 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Cantle and Joemre soils. The Cantle soils have a mollic epipedon. The Joemre soils have coarse-loamy control sections and are well drained.
DRAINAGE AND PERMEABILITY: Moderately well drained; runoff is slow; moderate permeability.
USE AND VEGETATION: These soils are used mainly as rangeland and wildlife habitat. The native vegetation is alkali sacaton, basin wildrye, western wheatgrass, and some greasewood.
DISTRIBUTION AND EXTENT: Basins of southeast Wyoming. The series is not extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Albany County Area, Wyoming; 1991.
REMARKS: Diagnostic horizons recognized in this pedon are:
Ochric epipedon - 0 to 3 inches (A1)
Argillic horizon - 6 to 21 inches (Bt, Btk1,Btk2)
Calcic horizon - 15 to 21 inches (Btk2)
Borollic feature - organic carbon and temperature regime meets the requirements for Borollic