LOCATION JOEMRE WYEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, frigid Ustic Calciargids
TYPICAL PEDON: Joemre fine sandy loam on a convex, east-facing slope of 6 percent-rangeland. (Colors are for dry soil unless otherwise stated.)
A--0 to 2 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6) moist; moderate medium granular structure; soft, very friable, nonsticky and nonplastic; common fine and few medium roots; strongly effervescent, carbonates disseminated, 6 percent calcium carbonate equivalent by calcimeter method; less than 5 percent fine pebbles; mildly alkaline (pH 7.8); abrupt smooth boundary. (2 to 5 inches thick)
Bt--2 to 5 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6) moist; weak medium subangular blocky structure; soft, very friable, sticky and plastic; common fine and few medium roots to 4 inches, few fine and medium roots below; few thin clay films lining pores and bridging sand grains; strongly effervescent, carbonates disseminated, 7 percent calcium carbonate equivalent by calcimeter method; less than 5 percent fine pebbles; moderately alkaline (pH 8.0); clear wavy boundary. (3 to 15 inches thick)
Btk--5 to 13 inches; yellowish red (5YR 4/6) loam, red (2.5YR 4/6) moist; strong coarse prismatic structure parting to strong coarse subangular blocky; hard, firm, slightly sticky and slightly plastic; few fine and medium roots; common moderately thick clay films on faces of peds; strongly effervescent, carbonates disseminated and as common fine soft masses, 9 percent calcium carbonate equivalent by calcimeter method; less than 5 percent fine pebbles; moderately alkaline (pH 8.4); clear wavy boundary. (0 to 12 inches thick)
Bk--13 to 60 inches; yellowish red (5YR 5/8) fine sandy loam, yellowish red (5YR 5/6) moist; massive; slightly hard, friable, sticky and nonplastic; few fine and medium roots; violently effervescent, carbonates disseminated and as thin pendants on undersides of pebbles, 13 percent calcium carbonate equivalent by calcimeter method; 10 percent medium and coarse pebbles; moderately alkaline (pH 8.4).
TYPE LOCATION: Albany County, Wyoming; about two miles northeast of Laramie; approximately 2,000 feet west and 2,700 feet north of the SE corner of sec. 14, T. 16 N., R. 73 W.
RANGE IN CHARACTERISTICS: The mean annual soil temperature ranges from 40 to 47 degrees F., and the mean summer soil temperature ranges from 59 to 65 degrees F. Depth to the base of the argillic horizon exceeds 10 inches. Rock fragment content is less than 15 percent throughout.
The A horizon has hue of 7.5YR through 2.5YR; value of 4 or 5 dry, 3 or 4 moist; and chroma of 3 through 6 dry and moist. Clay ranges from 6 to 12 percent. Reaction is mildly or moderately alkaline.
The Bt horizon has hue of 5YR or 2.5YR; value of 4 through 6 dry, and 3 or 4 moist; and chroma of 4 through 8 dry and 4 through 6 moist. Texture is fine sandy loam, very fine sandy loam, or loam with clay content averaging 10 to 18 percent. A Btk horizon is present in over half the pedons and is typically part of the argillic horizon.
The Bk horizon has hue of 5YR or 2.5YR, value of 5 or 6 dry, 3 through 5 moist, and chroma of 4 through 8. Texture is fine sandy loam, very fine sandy loam, or loam with 10 to 15 percent clay. Carbonates range from 9 to 20 percent. This horizon is a diagnostic calcic. The reaction is moderately or strongly alkaline.
COMPETING SERIES: These are the Canwall, Cotha, Elk Mountain, Farson, Means, Rawlins, Rohonda, Ryan Park, and Ryark series. Canwall soils have a lithic contact at depths of 20 to 40 inches. Cotha, Elk Mountain, Means, and Rohonda soils have a paralithic contact at 20 to 40 inches. Farson, Ryan Park and Rawlins soils have hue of 7.5YR or yellower.
GEOGRAPHIC SETTING: Joemre soils are on nearly level to strongly sloping relict fan aprons, alluvial fans, and terraces. Slopes are 1 to 15 percent. These soils are formed in mixed alluvium derived dominantly from "redbed" sedimentary formations. Elevation is 6,000 to 7,800 feet. The mean annual precipitation ranges from 10 to 14 inches of which about half falls as snow in April, May, and early June. The mean annual temperature ranges from 40 to 45 degrees F. The frost-free season is approximately 85 to 110 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Fiveoh, Tieside, and the competing Rohonda series. Fiveoh soils do not have argillic horizons and are on less convex positions. Tieside soils are shallow to fractured limestone and are on adjacent bedrock remnants. Rohonda soils are on more convex positions.
DRAINAGE AND PERMEABILITY: Well drained; slow runoff on gentler slopes and medium runoff on steeper slopes; moderate permeability.
USE AND VEGETATION: These soils are used for rangeland and wildlife habitat. Vegetation is mostly needleandthread, Indian ricegrass, thickspike wheatgrass, big sagebrush, and rabbitbrush.
DISTRIBUTION AND EXTENT: Intermountain basins of southern Wyoming and northern Colorado. The series is of moderate extent, covering slightly less than 10,000 acres.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Albany County (Albany County Area), Wyoming; 1991.
REMARKS: Diagnostic horizons and features recognized in this pedon are: Ochric epipedon - 0 to 2 inches (A); Argillic horizon - 2 to 13 inches (Bt, Btk); Calcic horizon - 5 to 60 inches (Btk, Bk).
The concept of this series is a mature Haplargid being resaturated with secondary calcium carbonate. Argillic horizons with strong, coarse, blocky, and prismatic structure are typical, along with abundant carbonate accumulation and discontinuous clay films.