LOCATION IKE IDEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, carbonatic, frigid Lithic Xeric Haplocalcids
TYPICAL PEDON: Ike stony loam in rangeland; on a 15 percent slope at 5,900 feet elevation with black sagebrush and bluebunch wheatgrass. When described on July 28, 1986, the soil was slightly moist throughout. (Color is for dry soil unless otherwise noted.)
A--0 to 3 inches; brown (10YR 5/3) stony loam, dark brown (10YR 3/3) moist; moderate fine subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; many very fine and common fine roots; common very fine tubular pores; 2 percent stones, 5 percent cobbles and 25 percent gravel; strongly effervescent (30 percent calcium carbonate equivalent); moderately alkaline (pH 8.2); clear smooth boundary. (2 to 4 inches thick)
Bkq1--3 to 12 inches; pale brown (10YR 6/3) very gravelly loam, brown (10YR 4/3) moist; moderate fine subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; many very fine, common fine and few medium roots; common very fine tubular pores; 5 percent limestone cobbles and 30 percent gravel; violently effervescent (40 percent calcium carbonate equivalent); common lime coats 1 to 2 mm thick and pendants 3 to 5 mm thick on underside of coarse fragments; moderately alkaline (pH 8.1); clear smooth boundary. (4 to 9 inches thick)
Bkq2--12 to 17 inches; pale brown (10YR 6/3) very gravelly sandy loam, dark yellowish brown (10YR 4/4) moist; moderate fine subangular blocky structure; slightly hard, very friable, slightly sticky and nonplastic; common very fine, fine and medium roots; common very fine tubular pores; 15 percent limestone cobbles and 30 percent gravel; violently effervescent (45 percent calcium carbonate equivalent); common lime coats 1 to 2 mm thick and pendants 3 to 5 mm thick on underside of coarse fragments; moderately alkaline (pH 8.0); abrupt wavy boundary. (4 to 6 inches thick)
R--17 inches; dark gray (N 4/) hard limestone slightly stained and weathered to reddish brown (5YR 5/4)
TYPE LOCATION: Custer County, Idaho; about 3/4 of a mile northeast of Leslie, Idaho. 200 feet west and 300 feet south from the northeast corner of section 14, T. 6 N., R. 25 E.; 43 degrees, 51 minutes, 22 seconds north latitude, 113 degrees, 27 minutes, 19 seconds west longitude.
RANGE IN CHARACTERISTICS:
The soil moisture control section is dry for one-half to three-fourths of the time when the soil temperature is above 41 degrees F; aridic bordering on xeric.
Average annual soil temperature - 41 to 47 degrees F. Average summer temperature - 59 to 66 degrees F.
Reaction - slightly to strongly alkaline
Depth to bedrock - 10 to 20 inches
Depth to the calcic horizon - 2 to 7 inches
Particle-size control section
Total clay - 10 to 20 percent
Carbonate clay 8 to 18 percent
Carbonate free clay 2 to 10 percent
Total sand - 40 to 70 percent
Calcium carbonate equivalent - 40 to 60 percent
Rock fragments average - 40 to 85 percent
A horizon
Value - 5 to 7 dry and 3 or 4 moist
Chroma - 2 or 3 dry or moist
Calcium carbonate equivalent - 25 to 35 percent
Bkq1 horizon
Value - 5 through 7 dry and 3 through 5 moist
Chroma - 3 or 4 moist
Texture - GRV-SIL, or GRV-L
Rock fragments - 35 to 60 percent
Bkq2 horizon and (Bkq3 if present)
Hue - 10YR or 2.5Y
Value - 6 through 8 dry and 4 through 7 moist
Chroma - 2 or 3 dry and 2 through 4 moist
Texture - CBV-L, CBV-SL, CBX-L, CBX-SL, GRX-L, GRX-SIL, GRX-SL, GRV-SL, CBX-SIL, GRV-SIL, GRV-L, or STX-L
Rock fragments - 35 to 90 percent
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: Ike soils occur on ridgetops and sideslopes of limestone foothills and mountains. The soils formed in limestone colluvium, slope alluvium, and residuum. Slopes run from 10 to 90 percent. Elevations range from 5,000 to 8,500 feet. The precipitation ranges from 8 to 12 inches, most of which is in the form of snow. The average annual temperature is 40 to 45 degrees F. Average summer temperature averages 59 to 60 degrees F. The frost free season is 50 to 80 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Jimbee, Nitchly, Skibo, Simeroi, and Zeale soils. The Jimbee soils are cryic and have a mollic epipedon. The Nitchly soils are cryic and over 20 inches deep. Simeroi soils are over 20 inches deep. Skibo and Zeale soils are cryic, have a mollic epipedon and are over 20 inches deep.
DRAINAGE AND PERMEABILITY: Well drained; rapid runoff; moderate permeability.
USE AND VEGETATION: Used primarily for range and wildlife. Vegetation is mainly black sagebrush and bluebunch wheatgrass.
DISTRIBUTION AND EXTENT: Ike soils are extensive in southcentral Idaho.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Custer County, Idaho, 1999.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from 0 to 3 inches
Calcic horizon - the zone from 3 to 17 inches
Particle-size control section - the zone from 10 to 17 inches