LOCATION FLOREY WY
Tentative Series
Rev. DPG-DJP-RJS
04/2017
FLOREY SERIES
The Florey series consists of very deep, well drained soils that formed in slope alluvium derived from interbedded sedimentary rocks. These soils are on fan remnants and ridges. Slopes are 1 to 8 percent. Mean annual precipitation is about 550 mm, and mean annual air temperature is about 0.8 degrees C.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Pachic Argicryolls
TYPICAL PEDON: Florey loam, in rangeland (colors are for dry soil unless otherwise noted).
A--0 to 12 cm; brown (7.5YR 4/4) loam, dark brown (7.5YR 3/3) moist; weak fine granular structure; very friable, soft, slightly sticky, slightly plastic; many very fine, fine, and medium roots; many very fine and fine tubular pores 10 percent gravel; moderately acid (pH 6.0); clear smooth boundary. (7 to 12 cm thick)
ABt--12 to 45 cm; dark brown (7.5YR 3/3) loam, very dark brown (7.5YR 2.5/3) moist; weak medium subangular blocky structure; friable, slightly hard, moderately sticky, moderately plastic; many very fine and fine roots; many very fine and fine tubular pores; 10 percent gravel; 5 percent faint clay films on all faces of peds; slightly acid (pH 6.4); clear smooth boundary. (0 to 33 cm thick)
Bt1--45 to 61 cm; reddish brown (5YR 4/4) very gravelly loam, dark reddish brown (5YR 3/3) moist; weak medium subangular blocky structure; friable, slightly hard, moderately sticky, moderately plastic; common fine roots; many very fine and fine tubular pores; 35 percent gravel and 10 percent cobbles; 15 percent faint clay films on all faces of peds; neutral (pH 7.0); clear smooth boundary.
Bt2--61 to 83 cm; reddish brown (5YR 4/4) very gravelly clay loam, dark reddish brown (5YR 3/3) moist; weak medium subangular blocky structure; firm, moderately hard, moderately sticky, moderately plastic; few fine roots; many very fine and fine tubular pores; 45 percent gravel; 20 percent faint clay films on all faces of peds; neutral (pH 7.2); clear smooth boundary.
Bt3--83 to 97 cm; reddish brown (5YR 4/4) extremely gravelly clay loam, dark reddish brown (5YR 3/3) moist; weak medium subangular blocky structure; firm, moderately hard, moderately sticky, moderately plastic; few fine roots; few fine tubular pores; 65 percent gravel; 20 percent faint clay films on all faces of peds; finely disseminated carbonates; slightly effervescent; slightly alkaline (pH 7.4); clear smooth boundary. (Bt1, Bt2, Bt3 combined -- 35 to 55 cm thick)
C--97 to 200 cm; reddish brown (5YR 4/4) very gravelly clay loam, dark reddish brown (5YR 3/3) moist; massive; very firm, hard, moderately sticky, moderately plastic; 55 percent gravel; finely disseminated carbonates; slightly effervescent; slightly alkaline (pH 7.4).
TYPE LOCATION: Lincoln County, Wyoming; USGS Sublette Canyon, Wyoming topographic quadrangle; 4 degrees 3 minutes 45.7 seconds north latitude and 110 degrees 46 minutes 56.22 seconds west longitude.
RANGE IN CHARACTERISTICS:
Mean annual soil temperature: 1.0 to 3.5 degrees C.
Mollic epipedon thickness: 40 cm or more
Depth to argillic horizon: 7 to 12 cm
Weighted average of rock fragments in the upper 50 cm of the argillic horizon is greater than 35 percent.
A horizon
Value: 3 or 4 dry; 2.5 or 3 moist
Chroma: 3 or 4 dry; 2 or 3 moist
Clay content: 14 to 20 percent
Rock Fragments: 0 to 25 percent gravel
Reaction: pH 5.6 to 6.8
AB, BA horizon (if present)
Clay content: 18 to 25 percent
Rock Fragments: 0 to 20 percent gravel; 0 to 10 percent cobbles
Reaction: pH 6.1 to 6.8
Thickness: 0 to 35 cm
ABt horizon (if present)
Hue: 5YR or 7.5YR dry or moist
Value: 3 or 4 dry; 2.5 or 3 moist
Chroma: 3 or 4 dry or moist
Clay content: 18 to 25 percent
Rock Fragments: 0 to 20 percent gravel; 0 to 10 percent cobbles
Reaction: pH 6.2 to 6.8
Bt1, Bt2, Bt3 horizons
Hue: 5YR or 7.5YR dry or moist
Value: 3 or 4 dry or moist
Chroma: 3 or 4 dry or moist
Texture (less than 2mm): loam, clay loam
Clay content: 20 to 34 percent
Rock Fragments: 25 to 75 percent gravel; 0 to 35 percent cobbles; 0 to 5 percent stones
Calcium carbonate equivalent: 0 to 2 percent
Reaction: pH 6.2 to 7.6
C horizon
Hue: 5YR or 7.5YR dry or moist
Value: 3 or 4 dry or moist
Chroma: 3 to 4 dry or moist
Texture (less than 2mm): clay loam, sandy clay loam
Clay content: 20 to 35 percent
Rock fragments: 35 to 60 percent gravel; 0 to 35 percent cobbles; 0 to 5 percent stones
Calcium carbonate equivalent: 0 to 5 percent
Reaction: pH 6.9 to 7.8
COMPETING SERIES:
Angelwhine (CA) - has a xeric moisture regime
Aspetill (CA) - has a xeric moisture regime
Badwater (WY) - contains boulders in the profile
Bickmore (UT) - moderately deep to a lithic contact
Bigcoulee (MT) - has a udic moisture regime
Blackbear (MT) - moderately deep to a lithic contact
Bluebell (ID) - moderately deep to a lithic contact
Booneville (ID) - has a udic moisture regime
Buena Vista (NV) - moderately deep to a lithic contact
Dab (NV) - has a xeric moisture regime
Dailybasin (MT) - has cobbles in the A horizon
Delhew (NV) - has a xeric moisture regime
Hawkinspeak (CA) - moderately deep to a lithic contact
Igor (WY) - has cobbles and stones in the A horizon
Keman (ID) - has a xeric moisture regime
Littlemud (NV) - moderately deep to lithic contact
Lostcannon (CA) - has a xeric moisture regime
Monibasin (CA) - has a xeric moisture regime
Panin (NV) - moderately deep to a lithic contact
Parkalley (ID) - has a xeric moisture regime
Parkay (UT) - has a xeric moisture regime
Rangertaft (NV) - moderately deep to a lithic contact
Redbird (SD) - has secondary calcium carbonate accumulation
Rutherford (ID) - moderately deep to a lithic contact
Sweetmount (CA) - has a xeric moisture regime.
Woodhurst (MT) - moderately deep to a lithic contact
GEOGRAPHIC SETTING:
Landform: fan remnants and ridges
Elevation: 2,200 to 2,700 meters
Slope: 1 to 8 percent
Parent Material: slope alluvium derived from interbedded sedimentary rocks
Climate: long, cold winters; cool, moist springs; short, cool summers
Mean annual precipitation: 375 to 600 mm
Mean annual air temperature: 0.5 to 2.5 degrees C.
Frost-free period: 10 to 45 days
GEOGRAPHICALLY ASSOCIATED SOILS: None listed.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained and 1.5 to 15.0 um/sec.
USE AND VEGETATION: Florey soils are primarily used for rangeland. The potential native vegetation is mainly mountain big sagebrush, Sandberg bluegrass, prairie junegrass, rhizomatous wheatgrass, and other forbs and grasses.
DISTRIBUTION AND EXTENT: Florey soils are of small extent in southwestern Wyoming. MLRA 43B and 46.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED: Lincoln County, Wyoming, 2017. The series name is derived from a local landmark.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon: 0 to 200 cm (A, ABt, Bt1, Bt2, Bt3 horizons)
Argillic horizon: 45 to 97 cm (Bt1, Bt2, Bt3 horizons)
Particle-size control section: 45 to 95 cm (Bt1, Bt2, part of Bt3 horizons).
Florey soils have a cryic temperature regime and an ustic moisture regime.
National Cooperative Soil Survey
U.S.A.