LOCATION TOOTALL WY
Tentative Series
Rev. DPG/DJP/RJS
01/2018
TOOTALL SERIES
The Tootall series consists of very deep, well drained soils that formed in slope alluvium weathered from sandstone, shale and mudstone. These soils are on hillslopes and fan remnants. Slopes are 2 to 35 percent. Mean annual precipitation is about 300 mm and mean annual air temperature is about 3.9 degrees C.
TAXONOMIC CLASS: Fine, smectitic, frigid Torrertic Haplustalfs
TYPICAL PEDON: Tootall sandy clay loam, in rangeland (colors are for dry soil unless otherwise noted).
A--0 to 8 cm; dark yellowish brown (10YR 4/4) sandy clay loam, dark brown (10YR 3/3), moist; weak fine granular structure; very friable, soft, moderately sticky, moderately plastic; many very fine and common medium roots; many very fine dendritic tubular pores; slight effervescence; slightly alkaline (pH 7.8); clear wavy boundary. (3 to 14 cm thick)
Bt1--8 to 21 cm; brown (7.5YR 5/4) clay loam, brown (7.5YR 4/3) moist; moderate very fine angular blocky structure; friable, slightly hard, very sticky, very plastic; many very fine and few medium roots; many fine tubular pores; 10 percent faint clay films on all faces of peds; strong effervescence; moderately alkaline (pH 8.0); clear wavy boundary.
Bt2--21 to 70 cm; brown (7.5YR 5/4) clay loam, brown (7.5YR 4/3), moist; moderate medium angular blocky structure; friable, slightly hard, very sticky, very plastic; common very fine roots; common medium tubular pores; 10 percent faint clay films on all faces of peds; strongly effervescent; moderately alkaline (pH 8.2); clear wavy boundary. (Combined thickness of Bt1 and Bt2 - 23 to 62 cm)
Btk--70 to 100 cm; brown (7.5YR 4/4) clay, dark brown (7.5YR 3/3), moist; moderate coarse angular blocky structure; firm, moderately hard, very sticky, very plastic; few fine roots; few fine dendritic tubular pores; 10 percent faint clay films on all faces of peds; 8 percent medium spherical carbonate masses in matrix; violently effervescent; strongly alkaline (pH 8.6); clear wavy boundary. (22 to 49 cm thick)
Bk--100 to 152 cm; brown (7.5YR 4/4) clay, dark brown (7.5YR 3/3), moist; strong very coarse angular blocky structure; firm, moderately hard, very sticky, very plastic; few fine interstitial pores; 10 percent faint pressure faces on all faces of peds; 10 percent medium spherical carbonate masses in matrix; violently effervescent; moderately alkaline (pH 8.4); clear wavy boundary.
TYPE LOCATION: Lincoln County, Wyoming; USGS Nugget, Wyoming topographic quadrangle; 41 degrees 45 minutes 29.99 seconds north latitude and 110 degrees 51 minutes 11.54 seconds west longitude.
RANGE IN CHARACTERISTICS:
Mean annual soil temperature - 3.0 to 7.0 degrees C.
Depth to argillic horizon - 3 to 14 cm
Depth to calcic horizon - 31 to 70 cm
A horizon
Hue: 7.5YR or 10YR; dry or moist
Value: 4 or 5 dry; 3 or 4 moist
Chroma: 3 to 6 dry; 2 to 4 moist
Texture: sandy clay loam, loam
Clay content: 18 to 32 percent
Rock Fragments: 0 to 10 percent gravel
Reaction: pH 7.8 to 8.2
Bt1, Bt2 horizons
Hue: 5YR to 10YR; dry or moist
Value: 4 or 5 dry; 3 to 5 moist
Chroma: 3 to 6 dry; 2 to 4 moist
Texture: clay loam, clay
Clay content: 35 to 46 percent
Rock Fragments: 0 to 10 percent gravel
Reaction: pH 7.8 to 8.2
Btk horizon
Hue: 5YR to 2.5Y; dry or moist
Value: 4 or 7 dry; 3 to 6 moist
Chroma: 3 to 8 dry; 2 to 6 moist
Clay content: 35 to 46 percent
Rock Fragments: 0 to 10 percent gravel
Calcium carbonate equivalent: 15 to 25 percent
Reaction: pH 8.2 to 8.6
Bk horizon
Hue: 2.5YR to 5Y; dry or moist
Value: 4 to 7 dry; 3 to 8 moist
Chroma: 2 to 6 dry; 1 to 4 moist
Clay content: 40 to 55 percent
Rock Fragments: 0 to 10 percent gravel
Calcium carbonate equivalent: 15 to 25 percent
Sodium adsorption ratio: 0 to 3
Reaction: pH 8.2 to 8.6
COMPETING SERIES:
Acel (MT) - do not have a calcic horizon
Bew (MT)- do not have a calcic horizon
Gunsone (WY) - has gypsum in the lower horizons
Pylon (MT) - are moderately deep to paralithic contact
Ulric (WY) - are moderately deep to paralithic contact
GEOGRAPHIC SETTING:
Landform - hillslopes, fan remnants
Elevation - 1,900 to 2,210 meters
Slope - 2 to 35 percent
Parent Material - slope alluvium weathered from sandstone, shale and mudstone
Climate - long, cold winters; cool, moist springs; short, cool summers
Mean annual precipitation - 250 to 350 mm with peak periods of precipitation occurring during the spring
Mean annual air temperature - 2.2 to 5.7 degrees C.
Frost-free period - 30 to 70 days
GEOGRAPHICALLY ASSOCIATED SOILS: None listed.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained, Ksat in particle-size control section - 0.5-5.0 um/sec.
USE AND VEGETATION: Tootall soils are primarily used for rangeland. The potential native vegetation is mainly Early sagebrush, Wyoming big sagebrush, rabbitbrush, Sandberg bluegrass, Western wheatgrass, and other forbs and grasses.
DISTRIBUTION AND EXTENT: Tootall soils are of small extent in southwestern Wyoming. MLRA 46.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED: Lincoln County, Wyoming, 2015. The series name is a coined phrase.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - 0 to 8 cm (A horizon)
Argillic horizon- 8 to 100 cm (Bt1, Bt2, Btk horizon)
Calcic horizon - 70 to 152 cm (Btk, Bk horizons)
Particle-size control section - from 8 to 58 cm (Bt1, part of Bt2 horizons).
Tootall soils have a frigid temperature regime and an ustic moisture regime bordering on aridic.
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National Cooperative Soil Survey
U.S.A.