LOCATION GUISER NV
Established Series
Rev. WDM-JBF-BKP
02/2017
GUISER SERIES
The Guiser series consists of very deep, well drained soils that formed in colluvium derived from quartzite and conglomerate. Guiser soils are on mountains. Slopes are 30 to 75 percent. Mean annual precipitation is about 580 mm and mean annual temperature is about 5 degrees C.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Xeric Argicryolls
TYPICAL PEDON: Guiser extremely cobbly loam--forestland. (Colors are for dry soil unless otherwise noted.)
Oe--0 to 3 cm; black (10YR 2/1) moist; partly decomposed needles and twigs; abrupt smooth boundary. (3 to 8 cm thick)
A1--3 to 20 cm; brown (10YR 5/3) extremely cobbly loam, very dark grayish brown (10YR 3/2) moist; moderate very fine subangular blocky structure parting to moderate fine granular; soft, very friable, slightly sticky and slightly plastic; many very fine, fine, medium, and coarse roots; many very fine and fine tubular and interstitial pores; 30 percent gravel, 30 percent cobbles, and 15 percent stones; neutral (pH 7.0); abrupt smooth boundary. (17 to 35 cm thick)
A2--20 to 41 cm; brown (10YR 5/3) extremely cobbly coarse sandy loam, brown (10YR 4/3) moist; moderate very fine subangular blocky parting to moderate fine granular; soft, very friable, nonsticky and nonplastic; many very fine, fine, medium, and coarse roots; many very fine and fine tubular and interstitial pores; 40 percent gravel and 30 percent cobbles; slightly alkaline (pH 7.4); clear wavy boundary. (18 to 60 cm thick)
Bt--41 to 94 cm; light yellowish brown (10YR 6/4) extremely cobbly loam, dark yellowish brown (10YR 4/4) moist; moderate fine subangular blocky structure; slightly hard, friable, moderately sticky and moderately plastic; common very fine, fine, medium, and coarse roots; many fine and very fine tubular pores; common faint clay films on face of peds; 35 percent gravel and 30 percent cobbles; neutral (pH 7.2); gradual wavy boundary. (38 to 76 cm thick)
C--94 to 155 cm; very pale brown (10YR 7/3) extremely gravelly coarse sandy loam, brown (10YR 4/3) moist; weak fine granular structure; soft, very friable, nonsticky and nonplastic; few very fine and fine roots; few fine tubular pores; 75 percent gravel and 10 percent cobbles; slightly alkaline (pH 7.6).
TYPE LOCATION: White Pine County, Nevada; 5,000 feet north and 2,000 feet west of the summit of Mt. Grafton in an unsurveyed area, in T. 10 N., R. 64 E.; USGS Mount Grafton 7.5 minute topographic quadrangle; 38 degrees, latitude 42 minutes, 18 seconds N and longitude 114 degrees, 44 minutes, 59 seconds W; WGS84 Decimal Degrees 38.7050000 latitude, -114.7497222 longitude.
RANGE IN CHARACTERISTICS:
Soil moisture: Usually moist, moist in winter, spring and early summer, dry mid-summer and fall; xeric soil moisture regime.
Mean annual soil temperature: 6 to 7 degrees C.
Mean summer soil temperature: 7 to 8 degrees C.
Mollic epipedon thickness: 18 (when mixed) to 35 cm thick.
Depth to lower boundary of argillic: 81 to 152 cm.
Reaction: Neutral or slightly alkaline.
Particle-size control section - Clay content: 18 to 27 percent.
Rock fragments: 60 to 85 percent.
A1 horizon
Value: 4 or 5 dry.
Chroma: 2 or 3, dry or moist.
Structure: Subangular blocky or granular.
A2 horizon
Value: 5 through 7 dry, 4 through 6 moist.
Chroma: 2 through 4, dry or moist.
Texture: Extremely cobbly sandy loam or extremely cobbly coarse sandy loam.
Rock fragments: 65 to 85 percent, dominantly cobbles.
Structure: Subangular blocky or granular.
Bt horizon
Value: 5 through 7 dry.
Chroma: 2 through 4, dry or moist.
Texture: Extremely cobbly loam, or extremely cobbly sandy clay loam.
Rock fragments: 60 to 80 percent, dominantly cobbles.
C horizon
Value: 6 or 7 dry.
Chroma: 2 through 4, dry or moist.
Texture: Extremely gravelly sandy loam or extremely gravelly coarse sandy loam.
Rock fragments: 60 to 85 percent, dominantly gravel.
COMPETING SERIES: These are the
Badgercamp,
Bakscratch,
Boneyard,
Chamberlain,
Cowlow, Crandal,
Forsey,
Fourme,
Hiridge, Itow,
Jackflat,
Packer,
Scuffe,
Stopatoe,
Successloop,
Tagum,
Toquima,
Winada, and
Zeebar series.
Badgercamp,
Bakscratch, and Highridge soils are shallow.
Boneyard,
Cowlow,
Itwo,
Scuffe,
Stopatoe,
Tagum,
Toquima, Winda soils are moderately deep.
Chamberlain soils formed in alluvium that averages less than 60 percent rock fragments and the rock fragments are rounded.
Forsey and
Packer soils have an argillic horizon with a lower boundary less than 70 cm.
Fourme, Crandal, and
Zeebar soils have mean annual soil temperature that averages less than 6 degrees.
Jackflat soils average less than 60 percent rock fragments in the particle-size control section and a reaction that ranges to slightly acid.
Successloop soils average 27 to 35 percent clay and less than 60 percent rock fragments in the particle-size control section.
GEOGRAPHIC SETTING: Guiser soils are on mountains. These soils formed in colluvium from quartzite and conglomerate. Slopes are 30 to 75 percent. Elevations are 2,350 to 3,350 meters. The climate is cold and moist during the winter and early spring months and cool and dry during the summer months. Mean annual temperature is 4 to 6 degrees C. and mean annual precipitation is 500 to 610 mm, in most years the snow pack melts by mid-June. The frost-free period is 50 to 75 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Hackwood and
Hardzem series. Hackwood soils have thick mollic epipedons and lack argillic horizons. Hardzem soils are moderately deep.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; high runoff; moderately high saturated hydraulic conductivity.
USE AND VEGETATION: These soils are used for wildlife habitat. Present vegetation is white fir, limber pine, some bristlecone pine, and curlleaf mountain mahogany.
DISTRIBUTION AND EXTENT: Mountains in Eastern Nevada. Guiser soils are of moderate extent. MLRA 28B
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: White Pine County, Nevada, 1982.
REMARKS: The name is coined from the nearby Geyser Ranch.
Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - The zone from 3 cm to 18 cm (by mixing A1 and the upper part of A2 horizons).
Argillic horizon - The zone from 41 to 94 cm (Bt horizon).
Particle-size control section - The zone from 41 to 91 cm (Upper 50 cm of the Bt horizon).
Additional Data: Past authors include CPH and RLB.
National Cooperative Soil Survey
U.S.A.