LOCATION LIZA WYTentative Series
TAXONOMIC CLASS: Fine-silty, mixed, superactive, frigid Pachic Argixerolls
TYPICAL PEDON: Liza silt loam on a mountain slope with 10 percent slope at an elevation of 1982 meters. (Colors are for dry soil unless otherwise noted.)
Ap--0 to 23 cm; brown (10YR 5/3) silt loam; very dark brown (7.5YR 2.5/3) moist; moderate coarse subangular blocky structure parting to moderate medium subangular blocky; slightly hard, very friable, slightly sticky, nonplastic; common very fine roots; many very fine irregular and common fine tubular pores; neutral (pH 6.8); abrupt wavy boundary. (20 to 30 cm thick)
AB--23 to 34 cm; brown (10YR 5/3) silt loam; dark brown (7.5YR 3/3) moist; moderate coarse subangular blocky structure; moderately hard, friable, slightly sticky, nonplastic; common very fine roots; many very fine tubular pores; few (15 percent) krotovinas; neutral (pH 7.2); abrupt wavy boundary. (0 to 15 cm thick)
Bt1--34 to 50 cm; yellowish brown (10YR 5/4) silty clay loam; dark brown (7.5YR 3/3) moist; weak medium prismatic structure parting to strong medium subangular blocky; hard, friable, moderately sticky, slightly plastic; common very fine and few fine roots; many very fine and common fine tubular pores; common (30 percent) dark brown (7.5YR 3/3) clay films and many (60 percent) light brown (7.5YR 6/3) skeletans; few (5 percent) krotovinas; slightly alkaline (pH 7.4); clear wavy boundary.
Bt2--50 to 79 cm; yellowish brown (10YR 5/4) silty clay loam; dark brown (7.5YR 3/4) moist; moderate fine prismatic structure parting to strong medium subangular blocky; very hard, friable, very sticky, very plastic; common very fine and few fine roots; many very fine and common medium and fine tubular pores; many (60 percent) dark brown (7.5YR 3/3) clay films and few (15 percent) light brown (7.5YR 6/3) skeletans; slightly alkaline (pH 7.4); gradual wavy boundary.
Bt3--79 to 103 cm; yellowish brown (10YR 5/4) silty clay loam; dark brown (7.5YR 3/4) moist; moderate medium prismatic structure parting to strong medium angular blocky; very hard, friable, moderately sticky, moderately plastic; common very fine roots; many very fine and common fine and medium tubular pores; common (45 percent) dark brown (7.5YR3/3), clay films and many (50 percent) brown (7.5YR 5/4) skeletans; slightly alkaline (pH 7.4); gradual wavy boundary.
Bt4--103 to 142 cm; yellowish brown (10YR 5/4) silty clay loam; brown (7.5YR 4/4) moist; moderate coarse prismatic structure parting to strong medium subangular blocky; very hard, friable, moderately sticky, moderately plastic; common very fine roots; many very fine and common fine and medium tubular pores; many (60 percent) brown (7.5YR 4/3) clay films and few(5 percent) brown (7.5YR 5/4) skeletans; slightly alkaline (pH 7.8); abrupt wavy boundary. (Combined thickness of the Bt horizons is 90 to 110 cm)
Bk--142 to 152 cm; yellowish brown (10YR 5/4) loam; brown (7.5YR 4/4) moist; moderate medium subangular blocky structure; slightly hard, friable, very sticky, nonplastic; common very fine tubular pores; few (20 percent) pink (7.5YR 7/3) masses of calcium carbonate on surfaces along pores; 16 percent calcium carbonate equivalent; violently effervescent; moderately alkaline (pH 8.0).
TYPE LOCATION: Teton County, Wyoming; about 4.9 km northeast of Alta; 744 m west and 540 m north of the southeast corner of Section 8, T. 44 N., R. 118 W.; Clawson USGS topographic quadrangle; lat. 43 degrees, 47 minutes, 48.2 seconds N. and long. 111 degrees, 1 minute, 28.8 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Mollic epipedon thickness: 50 to 60 cm
Particle size control section total clay (weighted average): 27 to 35 percent
Depth to argillic horizon: 20 to 42 cm
Depth to calcic horizon: 110 to 145 cm
Mean annual soil temperature: 5.0 to 8.0 degrees C.
Mean summer soil temperature: 15.0 to 18.3 degrees C. (frigid soil temperature regime)
Ap horizon
Value: 2.5 or 3 moist
Chroma: 2 or 3 moist
Bt horizon
Hue: 7.5YR or 10YR moist
Value: 3 or 4 moist
Chroma: 3 or 4 moist
Texture: SIL, SICL
Clay content: 20 to 40 percent
Bk or Btk horizons
Value: 4 or 5 moist, 5 to 7 dry
Chroma: 3 or 4 moist, 2 to 4 dry
Texture: L, or SL, with 0 to 15 percent total fragments; 0 to 10 percent gravel, 0 to 5 percent cobbles
COMPETING SERIES: These are the Barfuss, Bothwell, Marystown, and Smelter series. The Barfuss, Bothwell, Marystown and Smelter series do not have a calcic horizon.
GEOGRAPHIC SETTING:
Landscape: mountain
Landform: mountain slope
Elevation: 1938 to 2036 meters
Slope: 0 to 16 percent
Parent material: loess
Mean annual air temperature: 3.3 to 5.6 degrees C.
Mean annual precipitation: 533 to 813 mm
Frost free period: 40 to 70 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Jedediah (T) and Greys soils. Jedediah soils are in swales and are cryic. Greys soils are on north slopes and are cryic.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class: well
Runoff: high
Saturated hydraulic conductivity: moderately low in the control section and high below the discontinuity
USE AND VEGETATION:
Major uses: small grains, hay and pasture
Dominant native vegetation: mountain big sagebrush, snowberry, antelope bitterbrush, Idaho fescue, bluebunch wheatgrass, and mountain brome
DISTRIBUTION AND EXTENT:
Distribution: Western Wyoming, MLRA 13
Extent: the series is not extensive
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES PROPOSED: Teton County, Wyoming, 2009; Teton Area, Idaho-Wyoming Soil Survey
REMARKS:
Diagnostic horizons and soil characteristics recognized in this pedon are:
Mollic epipedon: from a depth of 0 to 50 cm
Argillic horizon: from a depth of 34 to 142 cm
Calcic horizon: from a depth of 142 to 152 cm
Particle size control section: from a depth of 34 to 84 cm
Soil temperature regime: frigid
Soil moisture regime: xeric
ADDITIONAL DATA:
Typical pedon was not sampled.