LOCATION KIMERA COEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Ustic Haplocalcids
TYPICAL PEDON: Kimera loam, on a west facing, 5 percent slope in grass at an elevation of 4705 feet. (Colors are for dry soil unless otherwise noted.) When described on August 23, 2002 the soil was moist from 0 to 4 inches.
A--0 to 4 inches; brown (10YR 5/3) loam, brown (10YR 4/3) moist; moderate fine granular structure; soft, very friable, slightly sticky and slightly plastic; many very fine to medium roots; strong effervescence (1 percent calcium carbonate equivalent); moderately alkaline; clear smooth boundary. (3 to 6 inches thick)
Bw--4 to 15 inches; pale brown (10YR 6/3) loam, brown (10YR 4/3) moist; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine and fine roots; violent effervescence (7 percent calcium carbonate equivalent); moderately alkaline; clear smooth boundary. (8 to 14 inches thick)
Bk1--15 to 28 inches; very pale brown (10YR 7/3) clay loam, brown (10YR 5/3) moist; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine roots; few fine distinct irregular carbonate masses throughout; violent effervescence (16 percent calcium carbonate equivalent); moderately alkaline; clear smooth boundary.
Bk2--28 to 47 inches; very pale brown (10YR 7/3) clay loam, brown (10YR 5/3) moist; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; few very fine roots; common percent fine distinct irregular carbonate masses throughout; violent effervescence (18 percent calcium carbonate equivalent); moderately alkaline; abrupt smooth boundary.
Bk3--47 to 57 inches; light brownish gray (10YR 6/2) silt loam, dark grayish brown (10YR 4/2) moist; moderate medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; few fine roots; few patchy faint pressure faces on vertical faces of peds; common medium distinct irregular carbonate masses throughout; violent effervescence (15 percent calcium carbonate equivalent); moderately alkaline; abrupt smooth boundary. (Combined thickness of the Bk1, Bk2 and Bk3 horizons is 31 to 49 inches)
Bk4--57 to 65 inches; very pale brown (10YR 7/3) loam, brown (10YR 4/3) moist; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common medium distinct irregular carbonate masses throughout; violent effervescence (9 percent calcium carbonate equivalent); moderately alkaline.
TYPE LOCATION: Las Animas County, Colorado; about 5 miles south of Ninaview, Colorado; located about 500 feet north and 350 feet west of the southeast corner of sec. 26, T. 28 S., R. 52 W.; Plug Hat USGS quad; lat. 37 degrees 34 minutes 21 seconds N. and long. 103 degrees 12 minutes 20 seconds W., NAD 1983
RANGE IN CHARACTERISTICS:
Soil moisture: The soil moisture control section is moist intermittently May through August and driest December through February; aridic moisture regime bordering on ustic.
Mean annual soil temperature: 48 to 54 degrees F
Mean summer soil temperature: 68 to 74 degrees F
Depth to secondary calcium carbonate: 0 to 6 inches
Depth to calcic horizon: 11 to 20 inches
Depth to cambic horizon: 3 to 6 inches
Thickness of the calcic horizon: 30 to 49 inches
Particle-size control section (weighted average):
Clay content: 20 to 30 percent
Sand content: 20 to 40 percent
Rock fragments: 0 to 5 percent gravel
A horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5 dry, 3 or 4 moist
Chroma: 2 or 3
Texture: loam, fine sandy loam
Clay content: 15 to 27 percent
Rock fragments: 0 to 5 percent gravel
Calcium carbonate equivalent: 1 to 5 percent
Reaction: slightly alkaline or moderately alkaline
Bw horizon:
Hue: 7.5YR or 10YR
Value: 5 or 6 dry, 4 or 5 moist
Chroma: 3 or 4
Texture: loam, clay loam, silt loam
Clay content: 20 to 30 percent
Rock fragments: 0 to 5 percent gravel
Calcium carbonate equivalent: 5 to 15 percent
Reaction: slightly alkaline or moderately alkaline
Bk1, Bk2 and Bk3 horizons:
Hue: 7.5YR or 10YR
Value: 5 to 7 dry, 4 to 6 moist
Chroma: 3 to 6
Texture: loam, clay loam, silt loam, sandy clay loam
Clay content: 20 to 35 percent
Rock fragments: 0 to 10 percent gravel
Calcium carbonate equivalent: 15 to 35 percent
EC (mmhos/cm): 0 to 4
Reaction: moderately alkaline or strongly alkaline
Bk4 horizon: (Bky in some pedons)
Hue: 7.5YR or 10YR
Value: 5 to 7 dry, 4 to 6 moist
Chroma: 3 to 6
Texture: fine sandy loam, loam, sandy clay loam
Clay content: 15 to 27 percent
Rock fragments: 0 to 15 percent gravel
Calcium carbonate equivalent: 5 to 25 percent
EC (mmhos/cm): 1 to 8
Gypsum: 0 to 5 percent
Reaction: moderately alkaline or strongly alkaline
COMPETING SERIES: These are the
Abra(AZ),
Bighams(AZ),
Bowdish(CO),
Copeman(WY),
Creel(NM),
Darvey(NM),
Hernandez(NM),
Honlu(UT),
Numa(CO), Pwachsprings(AZ), and
Xenmack(NM) series.
Abra soils: are dry in
May and June
Bighams, Creel, and Xenmack soils: have a paralithic contact at depths of 20 to 40 inches
Bowdish soils: have a lithic contact at depths of 20 to 40 inches
Copeman soils: have a lithologic discontinuity and average more than 15 percent rock fragments
Darvey soils: are moist December through February
Hernandez soils: have a mean annual temperature of 46 to 48 degrees F, and are drier in May and June
Honlu soils: average 15 to 35 percent rock fragments
Numa soils: have a manmade Ap horizon that is borderline to mollic and anthropic epipedons due to excess nitrogen and phoshorous
Peachsprings soils: average 15 to 35 percent rock fragments in some part of the control section
GEOGRAPHIC SETTING:
Parent material: alluvium and eolian deposits derived from sedimentary material
Landform: plains, fans, ridges, hills
Slopes: 1 to 9 percent
Elevation: 4,600 to 6,000 feet
Mean annual temperature: 50 to 54 degrees F
Mean annual precipitation: 12 to 14 inches
Precipitation pattern: peak periods May through August
Driest December through February
Frost-free period: 125 to 155 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Chicosa, Fort, Oterodry, and Wilid series. The Chicos soils average more than 35 percent rock fragments and are on fan remnants. The Fort soils have an argillic horizon and are on footslopes of ridges. The Oterodry soils are coarse-loamy and are on the summits of ridges. The Wilid soils have an argillic horizon and are on plains.
DRAINAGE AND PERMEABILITY: Well drained, low to medium runoff, moderate permeability.
USE AND VEGETATION: Rangeland and wildlife habitat; the primary vegetation is blue grama, galleta, yucca, sand dropseed, sideoats grama, and broom snakeweed.
DISTRIBUTION AND EXTENT: southeastern Colorado; LRR G, MLRA 69; moderate extent.
MLRA OFFICE RESPONSIBLE: Salina, Kansas
SERIES PROPOSED: Las Animas County, Colorado, Las Animas County Area soil survey area, Colorado. The name coined.
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Series control section: The zone from 0 to 65 inches.
Particle-size control section: The zone from 10 to 40 inches. (part of the Bw, Bk1, and part of the Bk2 horizons)
Ochric epipedon: The zone from 0 to 4 inches. (A horizons)
Cambic horizon: The zone from 4 to 15 inches. (Bw horizons)
Calcic horizon: The zone from 15 to 57 inches. (Bk1, Bk2, and Bk3 horizons)
Other features: ustic aridic moisture regime
Remarks: This soil was considered part of the Kim series. This series is proposed as a result of identification of consistent cambic and calcic horizons (with visible segregated lime) have been identified
The assignment of the cation-exchange activity class is inferred from lab data from similar soils in the surrounding area.
Taxonomic Version: Second Edition, 1999
ADDITIONAL DATA: