LOCATION JULIETTE ID
Tentative Series
CBR/DJP
05/2021
JULIETTE SERIES
The Juliette series consists of very deep, well drained soils that formed in colluvium or loess influenced colluvium derived from limestone. These soils are on mountain slopes. Slopes are 30 to 70 percent. Mean annual precipitation is about 600 mm, and mean annual air temperature is about 2 degrees C.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Xeric Calcicryolls
TYPICAL PEDON: Juliette gravelly loam in forestland. (Colors are for dry soil unless otherwise noted.)
Oi--0 to 3 cm; slightly decomposed plant material.
A--3 to 18 cm; brown (10YR 4/3) gravelly loam, dark brown (10YR 3/3) moist; weak fine granular structure; soft, very friable, slightly sticky and slightly plastic; many very fine, fine and few medium roots; common very fine and fine interstitial and few very fine and fine tubular pores; 30 percent gravel; 2 percent cobbles; slightly alkaline (pH 7.6); clear smooth boundary.
Bk1--18 to 36 cm; brown (10YR 5/3) very gravelly loam, brown (10YR 4/3) moist; weak medium subangular blocky structure parting to weak fine granular; soft, very friable, slightly sticky and slightly plastic; many very fine, fine and few medium and coarse roots; common very fine and fine interstitial and few very fine and fine tubular pores; 35 percent gravel, 5 percent cobbles; calcium carbonate coats on bottom surfaces of rock fragments; strongly effervescent; slightly alkaline (pH 7.8); gradual wavy boundary.
Bk2--36 to 56 cm; very pale brown (10YR 7/3) very gravelly loam, yellowish brown (10YR 5/4) moist; weak fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine, fine and medium roots; common very fine tubular pores; 35 percent gravel; calcium carbonate coats on bottom and side surfaces of rock fragments; violently effervescent; moderately alkaline (pH 8.0); clear wavy boundary.
Bk3--56 to 84 cm; very pale brown (10YR 7/4) extremely gravelly sandy loam, light yellowish brown (10YR 6/4) moist; weak medium subangular blocky structure; slightly hard, friable, nonsticky and slightly plastic; common very fine, fine and few medium roots; common very fine and few fine tubular pores; 35 percent gravel, 25 percent cobbles, 2 percent stones; calcium carbonate coats on all surfaces of rock fragments; violently effervescent; moderately alkaline (pH 8.2); gradual wavy boundary.
Bkq1--84 to 119 cm; very pale brown (10YR 7/4) extremely gravelly sandy loam, brownish yellow (10YR 6/6) moist; single grain; loose; common very fine, fine and few medium roots; few very fine tubular and interstitial pores; 60 percent gravel, 5 percent cobbles; calcium carbonate and silica coats on all surfaces of rock fragments; violently effervescent; moderately alkaline (pH 8.3); gradual wavy boundary.
Bkq2--119 to 150 cm; very pale brown (10YR 7/4) extremely gravelly sandy loam, light yellowish brown (10YR 6/4) moist; single grain; loose; common very fine, fine and few medium and coarse roots; few very fine tubular and interstitial pores; 45 percent gravel, 30 percent cobbles; calcium carbonate coats on all surfaces of rock fragments; strongly effervescent; moderately alkaline (pH 8.2).
TYPE LOCATION: Custer County, Idaho; USGS topographic quadrangle Bayhorse; latitude 44.3897247 degrees north and latitude 114.2995657 degrees west, datum WGS84.
RANGE IN CHARACTERISTICS:
Mean annual soil temperature--1.7 to 3.9 degrees F.
Thickness of mollic epipedon--18 to 38 cm
Depth to calcic horizon--18 to 38 cm
Particle-size control section (weighted averages)
Clay content--10 to 22 percent
Total rock fragments--40 to 85 percent
Calcium carbonate equivalent--25 to 40 percent
Oi horizon
Reaction--pH 4.5 to 5.5
Organic matter content--65 to 95 percent
Thickness-1 to 8 cm
A horizon
Hue--7.5YR, 10YR or 2.5Y
Value--4 or 5 dry, 2 or 3 moist
Chroma--2 or 3
Texture (less than 2 mm fraction)--loam or silt loam
Clay content--12 to 20 percent
Rock fragments--15 to 80 percent; 15 to 50 percent gravel, 0 to 6 percent cobbles, 0 to 3 percent stones
Reaction--pH 7.8 to 8.4
Thickness--15 to 38 cm
Bk horizons
Hue--7.5YR, 10YR, or 2.5Y
Value--4 to 7 dry, 4 to 6 moist
Chroma--2 to 4
Texture (less than 2 mm fraction)--loam, silt loam, or sandy loam
Clay content--12 to 22 percent
Rock fragments--35 to 80 percent; 15 to 50 percent gravel, 0 to 25
percent cobbles, 0 to 6 percent stones
Calcium carbonate equivalent--15 to 40 percent
Reaction--pH 7.4 to 8.4
Thickness--25 to 91 cm
Bkq horizons
Hue7.5YR, 10YR, or 2.5Y
Value--5 to 7 dry, 4 to 6 moist
Chroma--2 to 6
Texture--sandy loam or loam
Rock fragments--60 to 85 percent; 15 to 75 percent gravel, 3 to 30 percent cobbles, 0 to 9 percent stones
Calcium carbonate equivalent--25 to 60 percent
Reaction--pH 7.9 to 8.4
COMPETING SERIES:
Swan Flat (ID)--soils do not have silica accumulation
Vo (ID)--soils do not have an O horizon
GEOGRAPHIC SETTING:
Landform--mountain slopes
Elevation--1,590 to 2,990 meters
Slope--2 to 70 percent
Parent material--colluvium or loess influenced colluvium derived from limestone
Mean annual precipitation--410 to 650 mm
Mean annual air temperature--1.0 to 4.0 degrees
Frost-free period--10 to 50 days
GEOGRAPHICALLY ASSOCIATED SOILS: None listed
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; 5 to 25 um/sec
USE AND VEGETATION: Juliette soils are primarily used for forestland. The potential native vegetation is Douglas-fir, common juniper, and mountain snowberry.
DISTRIBUTION AND EXTENT: Juliette soils are of moderate extent in central and southeastern Idaho; MLRAs 12 and 43B
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana.
SERIES ESTABLISHED: Custer County, 2021. Juliette series is derived from a nearby stream.
REMARKS:
Diagnostic horizons and features recognized in this pedon:
Mollic epipedon--3 to 21 cm after mixing to a depth of 18 cm below the mineral soil surface (A, part of the Bk1 horizon).
Calcic horizon--18 to 150 cm (Bk, Bkq horizons)
Particle-size control section--28 to 103 cm (part of Bk1, Bk2, Bk3, part of Bkq1 horizons).
Juliette soils have a cryic temperature regime and a xeric moisture regime.
Taxonomic version: Twelfth Edition, 2014
National Cooperative Soil Survey
U.S.A.