LOCATION REMMIT CO+MT UTEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, mesic Ustic Haplocambids
TYPICAL PEDON: Remmit fine sandy loam, 0 to 2 percent slopes. (Colors are for dry soil unless otherwise noted.)
A--0 to 4 inches; brown (10YR 5/3) fine sandy loam, dark brown (10YR 3/3) moist; moderate fine granular structure; soft, very friable, slightly sticky and slightly plastic; neutral (pH 6.5); abrupt smooth boundary. (2 to 5 inches thick)
Bt1--4 to 7 inches; pale brown (10YR 6/3) sandy loam, dark brown (10YR 3/3) moist; weak medium subangular blocky parting to moderate fine subangular blocky structure; hard, friable, slightly sticky and slightly plastic; 1 to 4 percent thin, patchy argillans around pores; neutral (pH 6.8), clear smooth boundary. (2 to 5 inches thick)
Bt2--7 to 16 inches; pale brown (10YR 6/3) sandy loam, brown (10YR 4/3) moist; strong fine prismatic parting to moderate fine and medium subangular blocky structure; hard, firm, slightly sticky and slightly plastic; 3 to 8 percent thin, patchy argillans in and around pores; moderately alkaline (pH 8.0); clear wavy boundary. (1 to 8 inches thick)
Bt3--16 to 22 inches; light yellowish brown (10YR 6/4) sandy loam, dark yellowish brown (10YR 4/4) moist; weak coarse prismatic parting to weak medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; 1 to 3 percent thin argillans in pores; moderately alkaline (pH 8.1); clear wavy boundary. (0 to 5 inches thick)
Bk1--22 to 33 inches; very pale brown (10YR 7/4) sandy loam, yellowish brown (10YR 5/4) moist; weak coarse prismatic parting to weak medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; strongly effervescent, few visible calcium carbonates as fine filaments filling old pores; moderately alkaline (pH 8.1); gradual wavy boundary. (3 to 8 inches thick)
Bk2--33 to 47 inches; very pale brown (10YR 7/3) sandy loam, light yellowish brown (10YR 6/4) moist; weak medium prismatic structure; slightly hard, friable, nonsticky and nonplastic; violently effervescent, common visible calcium carbonate as fine filaments, streaks and coatings on ped faces; moderately alkaline (pH 8.3); clear smooth boundary. (0 to 7 inches thick)
2Bk3--47 to 64 inches; very pale brown (10YR 8/3) loam, light yellowish brown (10YR 6/4) moist; weak coarse prismatic structure; slightly hard, friable, slightly sticky and slightly plastic; violently effervescent, common visible calcium carbonate as filaments, filled pores and blotches; moderately alkaline (pH 8.3) clear wavy boundary. (0 to 9 inches thick)
2Bk4--64 to 77 inches; very pale brown (10YR 8/3) loam, pale brown (10YR 6/3) moist; massive; soft, very friable, slightly sticky and slightly plastic; violently effervescent, common visible, calcium carbonate visible as filled pores and filaments, moderately alkaline (pH 8.3). (0 to 12 inches thick)
TYPE LOCATION: Weld County, Colorado; 1,580 feet north and 2,050 feet west of the southeast corner of Sec. 2, T. 2 N., R. 66W. 104 degrees, 44 minutes, 30 seconds west longitude; 40 degrees, 51 minutes, 21 seconds north latitude.
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 47 to 52 degrees F. The control section contains less than 15 percent gravel which usually occurs in lag lines. The 10 to 40 inch particle-size control section has 10 to 18 percent clay, and 45 to 55 percent fine sand and coarser. The weighted average of organic carbon in the upper 10 inches is 0.5 to 1.0 percent. Depth to calcareous soil material ranges from 8 to 15 inches. Depth to the lithologic discontinuity is greater than 40 inches.
The A horizon has a hue of 10YR, value of 5 to 6 dry, 3 through 5 moist, and chroma of 2 through 4. Reaction is neutral.
The Bt horizons have hues of 10YR or 2.5Y, value of 5 through 7 dry, 4 through 6 moist, chromas of 3 through 6. Texture is sandy loam. Clay films may be observable on surfaces of peds and in pores. Reaction is mildly alkaline or moderately alkaline.
The Bk horizons have hues of 10YR or 2.5Y, values of 5 through 8 dry, 4 through 7 moist. Texture is loam or sandy loam.
COMPETING SERIES: These are the Begay (UT), Ignacio (NM) Parida (NM), Sandspring T(AZ), and Turnback (WY) series. Begay soils have hues redder than 7.5YR in the Bw, Bk and c subsoils. Ignacio soils have a lithic contact at 20 to 40 inch depths. The Parida soils average more than 15 percent coarse fragments in the particle-size control section. The Turnback soils have a paralithic contact at 20 to 40 inches depths.
GEOGRAPHIC SETTING: Remmit soils are on plains and wind reworked terraces. Slopes range from 0 to 15 percent. The soils formed in wind reworked sandstone sediments. The mean annual precipitation is 10 to 14 inches. The mean annual air temperature ranges from 45 to 53 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Olney, Owlcreek(t), vona and Zigweld soils. Olney and vona soils have argillic subsoils. Owlcreek soils have mollic epipedons and dark colored buried subsoils. Zigweld soils have 18 to 35 percent clay in the particle-size control section.
DRAINAGE AND PERMEABILITY: Well drained or somewhat excessively drained, moderately rapid permeability.
USE AND VEGETATION: These soils are used for native range and limited nonirrigated cropland acreage. Vegetation is shortgrass prairie with some mid-grasses, buffalograss, blue grama, western wheatgrass, greens needlegrass, red threeawn and snakeweed.
DISTRIBUTION AND EXTENT: Remmit soils are in northeastern Colorado. This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Powder River County (Powder River Area), Montana, 1972.
REMARKS: The responsibility for the series and the type location has been transferred from Powder River County Montana to Weld County Colorado. Laboratory sampling (1991) [sample 91P5247-5254] confirmed this soil as a coarse-loamy Ustollic Camborthid with some oriented clay argillians in the subsoil which are not qualifying for an argillic horizon. The Cambic horizon ranges from 4 to 22 inches. Last updated by the state 12/91.
OSED scanned by SSQA. Last revised by state on 12/91.