LOCATION MANOGUE NV

Established Series
Rev. OWB-WED-JVC-JBF
11/2016

MANOGUE SERIES

The Manogue series consists of deep and very deep, well drained soils that formed in alluvium, colluvium, and residuum derived from volcanic rocks. Manogue soils are on hills, plateaus, and rock pediments. Slopes are 0 to 30 percent. The mean annual precipitation is about 230 mm and the mean annual temperature is about 9 degrees C.

TAXONOMIC CLASS: Fine, smectitic, mesic Aridic Haploxererts

TYPICAL PEDON: Manogue cobbly clay--rangeland. (Colors are for dry soil unless otherwise noted.) The soil surface is covered with 15 gravel and 15 percent cobbles.

A--0 to 8 cm; dark brown (10YR 3/3) cobbly clay, dark brown (10YR 3/3) moist; moderate very fine granular structure; soft, very friable, very sticky and very plastic; very few roots; many very fine interstitial pores; 15 percent cobbles; neutral (pH 7.2); abrupt smooth boundary. (3 to 10 cm thick)

Bss--8 to 38 cm; brown (10YR 4/3) clay, dark yellowish brown (10YR 4/4) moist; strong medium and coarse prismatic structure; very hard, very firm, very sticky and very plastic; very few roots; few very fine tubular pores; common slickensides; moderately alkaline (pH 8.4); abrupt smooth boundary. (20 to 40 cm thick)

Bkss1--38 to 104 cm; brown (10YR 4/3) clay, dark yellowish brown (10YR 4/4) moist; strong coarse prismatic structure; very hard, very firm, very sticky and very plastic; very few roots; few fine tubular pores; 5 percent gravel; common slickensides; strongly effervescent; moderately alkaline (pH 8.4); clear smooth boundary. (33 to 80 cm thick)

Bkss2--104 to 145 cm; brown (10YR 4/3) clay, dark yellowish brown (10YR 4/4) moist; weak very coarse prismatic structure; very hard, very firm, very sticky and very plastic; very few roots; very few fine tubular pores; 5 percent gravel; common slickensides; strongly effervescent; moderately alkaline (pH 8.4); abrupt wavy boundary. (20 to 50 cm thick)

2Bk--145 to 160 cm; pale brown (10YR 6/3) gravelly clay loam, dark yellowish brown (10YR 4/4) moist; weak medium angular blocky structure; hard, firm, moderately sticky and moderately plastic; very few fine tubular pores; 15 percent gravel; strongly effervescent; moderately alkaline (pH 8.4); abrupt wavy boundary. (0 to 38 cm thick)

2Cr--160 cm; highly weathered andesite.

TYPE LOCATION: Washoe County, Nevada; about 4 miles north of Sparks in Sun Valley; approximately 1,240 feet west and 1,240 feet north of the southeast corner of section 17, T. 20 N., R. 20 E.; USGS Reno 7.5 minute topographic quadrangle; latitude 39 degrees 35 minutes 47 seconds N and longitude 119 degrees 45 minutes 24 seconds W; WGS84 Decimal Degrees 39.5963889 latitude, -119.756667 longitude.

RANGE IN CHARACTERISTICS:
Soil moisture: Moist in winter and spring, dry in summer and fall; adjacent soils have an aridic moisture regime that borders on xeric.
Mean annual soil temperature: 10 to 11 degrees C.
Depth to carbonates: 25 to 50 cm.
Depth to bedrock: 100 to 165 cm to a paralithic contact. The paralithic materials below the contact are weathered volcanic rocks such as andesite or basalt.

Particle-size control section - Clay content: 40 to 55 percent.

A horizon
Hue: 10YR or 7.5YR.
Value: 3 through 5 dry, 3 or 4 moist.
Chroma: 3 or 4, dry or moist.
Reaction: Slightly acid through moderately alkaline.

Bss and Bkss horizons
Hue: 10YR or 7.5YR.
Value: 4 through 6 dry, 3 or 4 moist.
Chroma: 2 through 4, dry or moist.
Texture: Clay or silty clay.
Reaction: Slightly alkaline or moderately alkaline.
Other features: Some pedons have 2Bk horizons with texture of gravelly clay loam.

COMPETING SERIES: These are the Brubeck, Doten, Gerlach, Getrail, Horsecamp, Moroni, and Waspo series.

Brubeck soils are moderately deep to lithic contacts. Doten soils have redoximorphic features within 100 cm of the soil surface. Gerlach soils have thick mollic epipedons and are not effervescent within 100 cm of the soil surface. Getrail soils are not effervescent and have paralithic materials of marine shale within the series control section. Horsecamp soils are deep to lithic contacts and have secondary carbonates at depths of 50 to 90 cm. Moroni soils are higher in calcium carbonate equivalent and do not have cambic horizons. Waspo soils are moderately deep to paralithic contacts.

GEOGRAPHIC SETTING: Manogue soils are on hills, plateaus, and rock pediments. These soils formed in alluvium, colluvium, and residuum derived from volcanic rocks. Slopes are 0 to 30 percent. Elevations range from 1,310 to 1,830 meters. The climate is semiarid with cool, moist winters and warm, dry summers. The mean annual precipitation is 200 to 300 mm and the mean annual temperature is 8 to 10 degrees C. The frost-free period is 80 to 110 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Greenbrae and Indian Creek soils. Greenbrae soils have an argillic horizon with an average clay content of 27 to 35 percent. Indian Creek soils have a duripan at depths of 36 to 50 cm.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; medium, high, or very high surface runoff; low saturated hydraulic conductivity.

USE AND VEGETATION: Manogue soils are used for rangeland, recreation and urban development. The native vegetation is littleleaf horsebrush, spiny hopsage, Wyoming big sagebrush, and bottlebrush squirreltail.

DISTRIBUTION AND EXTENT: Western Nevada. These soils are moderately extensive. The series concept and main acreage is in MLRA 26, while other acreage occurs in MLRAs 23 and 27.

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

SERIES ESTABLISHED: Washoe County, Nevada (South Part), 1980.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - The zone from the soil surface to 18 cm (A horizon and part of the Bss horizon).
Cambic horizon - The zone from 8 to 38 cm (Bss horizon).
Slickensides - The zone from 8 to 145 cm (Bss, Bkss1, and Bkss2 horizons).
Paralithic contact - The boundary at 160 to underlying soft, weathered bedrock (2Cr layer).
Particle-size control section - The zone from 25 to 100 cm (parts of the Bss and Bkss1 horizons).

ADDITIONAL DATA: A pedon of Manogue near the series type location has full characterization data by the Soil Survey Laboratory (SSL), Lincoln, NE, as soil survey sample number S75NV-031-016 (pedon # 40A3430).

User Pedon ID: 2006NV031075.

National Cooperative Soil Survey
U.S.A.