LOCATION FALERIA                 NV

Established Series
Rev. DJM/RLB/JBF
06/2016

FALERIA SERIES

The Faleria series consists of deep, well drained soils that formed in residuum and colluvium derived from volcanic rocks with a strong influence from volcanic ash. The Faleria soils are on mountain slopes. Slopes are 30 to 75 percent. The mean annual precipitation is about 460 mm and the mean annual temperature is about 6 degrees C.

TAXONOMIC CLASS: Ashy-skeletal, glassy, frigid Vitrandic Haplustalfs

TYPICAL PEDON: Faleria gravelly sandy loam--woodland. (Colors are for dry soil unless otherwise noted.) The surface is partially covered with 10 percent cobbles and 20 percent gravel.

Oi--0 to 3 cm; ponderosa pine needles with about 0.6 cm partially decomposed pine needles; neutral (pH 6.8); abrupt wavy boundary.

A1--3 to 8 cm; grayish brown (10YR 5/2) gravelly sandy loam, very dark grayish brown (10YR 3/2) moist; moderate thin platy structure; soft, very friable, nonsticky and nonplastic; many very fine and fine roots; many very fine and fine interstitial and few fine tubular pores; 5 percent cobbles and 15 percent gravel; neutral (pH 6.8); clear smooth boundary. (3 to 8 cm thick)

A2--8 to 20 cm; grayish brown (10YR 5/2) gravelly loam, very dark grayish brown (10YR 3/2) moist; moderate fine and medium subangular blocky structure; soft, very friable, slightly sticky and nonplastic; many very fine and fine and common medium roots; many very fine and fine interstitial and common fine tubular pores; 20 percent gravel; neutral (pH 7.2); clear smooth boundary. (8 to 18 cm thick)

Bt1--20 to 36 cm; pale brown (10YR 6/3) very gravelly sandy loam, dark brown (10YR 3/3) moist; strong fine and medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; common fine and medium and few coarse roots; many very fine and fine interstitial and common fine tubular pores; few faint clay film on mineral grains; 5 percent cobbles and 35 percent gravel; neutral (pH 7.0); clear wavy boundary. (10 to 18 cm thick)

Bt2--36 to 69 cm; pale brown (10YR 6/3) very gravelly sandy loam, dark brown (10YR 3/3) moist; strong fine and medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and fine roots; common very fine and fine interstitial and fine tubular pores; few faint clay film on mineral grains; 5 percent cobbles and 45 percent gravel; neutral (pH 7.0); clear wavy boundary. (25 to 38 cm thick)

Bt3--69 to 86 cm; pale brown (10YR 6/3) very cobbly sandy loam, brown (7.5YR 5/4) moist; strong fine and medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; many fine and medium and common coarse roots; many very fine interstitial and common fine tubular pores; common distinct clay bridges between ; 35 percent cobbles and 20 percent gravel; neutral (pH 6.8); clear wavy boundary. (3 to 23 cm thick)

Bt4--86 to 102 cm; pink (5YR 7/3) very gravelly sandy loam, reddish brown (5YR 4/3) moist; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common very fine to medium roots; many very fine and fine interstitial pores; common faint clay films on faces of peds and lining pores; 10 percent cobbles and 30 percent gravel; neutral (pH 6.8); clear wavy boundary. (10 to 20 cm thick)

Bt5--102 to 122 cm; pink (5YR 7/3) very gravelly sandy loam, reddish brown (5YR 4/4) moist; massive; soft, very friable, slightly sticky and nonplastic; few medium and common very fine and fine roots; many very fine and fine interstitial pores; common faint clay bridges between mineral grains; 10 percent cobble and, 45 percent gravel; neutral (pH 6.8); abrupt wavy boundary. (15 to 25 cm thick)

R--122 cm; hard rhyolitic tuff with an irregular 2.5 cm weathering rind.

TYPE LOCATION: Lincoln County, Nevada; approximately 1 mile east of Ella Mountain lookout in the Clover Mountains; about 7980 feet west and 100 feet north of the northeast corner of section 31, T. 5 S., R. 68 E.; USGS Ella Mountain 7.5 minute topographic quadrangle; latitude 37 degrees 27 minutes 31 seconds N and longitude 114 degrees 27 minutes 32 seconds W; WGS84 Decimal Degrees 37.4586111 latitude, -114.4541667 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture; Usually moist, moist in some part of the moisture control section from early July through early October and during winter and early spring months; typic ustic soil moisture regime.
Mean annual soil temperature: 7 to 8 degrees C.
Depth to bedrock: 100 to 150 cm.
Other features: Strong influence from volcanic ash and glass with a bulk density ranging from 0.90 to 1.10 gram/cubic cm.

Particle-size control section - Clay content: 18 to 27 percent.
Rock fragments: 35 to 60 percent.

A horizons
Value: 4 or 5 dry, 3 or 4 moist.
Chroma: 2 or 3.

Bt1, Bt2 and Bt3 horizons
Hue: 10YR or 7.5YR.
Value: 5 or 6 dry, 3 through 5 moist.
Chroma: 3 or 4.
Texture: Very gravelly sandy loam, very gravelly sandy clay loam, very gravelly loam or very cobbly sandy loam.
Structure: Strong or moderate subangular blocky.
Other features: These horizons average 40 to 60 percent by weight volcanic glass within the very fine sand fraction. This soil does not contain the acid-oxalate extractable iron greater than 1.0 percent.

Bt4 and Bt5 horizons
Value: 6 or 7 dry, 4 or 5 moist.
Chroma: 3 or 4.
Rock fragments: 35 to 60 percent.
Structure: Subangular blocky or massive.
Consistence: Slightly hard or soft

COMPETING SERIES: There are no competing series.

GEOGRAPHIC SETTING: Faleria soils are on mountain slopes. These soils formed in residuum and colluvium derived from rhyolitic tuffs with a strong influence from volcanic ash. Slopes are 30 to 75 percent. Elevations are 1,895 to 2,320 meters. The climate is cool continental with warm moist summers. The mean annual precipitation is 400 to 500 mm, the mean annual temperature is 6 to 7 degrees C, and the frost-free season is 80 to 100 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Turba and Laross soils. Turba soils have a paralithic contact within 36 cm and have a loamy-skeletal particle-size control section. Laross soils lack an argillic horizon and have a mean annual soil temperature greater than 8 degrees C.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; medium runoff; moderately high saturated hydraulic conductivity.

USE AND VEGETATION: Woodland and wildlife habitat. The present vegetation is mainly Ponderosa pine, greenleaf manzanita, mountain snowberry, Utah serviceberry, and pine bluegrass.

DISTRIBUTION AND EXTENT: Southeastern Nevada. These soils are of small extent. MLRA 29.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California

SERIES ESTABLISHED: Lincoln County, Nevada, South Part, 1992.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the soil surface to 20 cm (A1 and A2 horizons).
Argillic horizon - The zone from 20 to 128 cm (Bt1, Bt2, Bt3, Bt4 and Bt5 horizons)
Vitrandic subgroup - The sand fraction make up more than 30 percent of the fine earth and it contains more than 30 percent volcanic glass.
Particle-size control section - The zone from 20 to 70 cm (Bt1, Bt2 and upper part of the Bt3 horizons).

ADDITIONAL DATA: Characterization data available for samples S86NV-017-008 (24-30). Characterization data is available for this pedon.

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National Cooperative Soil Survey
U.S.A.