LOCATION BONEYARD NVTentative Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Xeric Argicryolls
TYPICAL PEDON: Boneyard very stony loam--rangeland. (Colors are for dry soil unless otherwise noted.) The soil surface is partially covered with approximately 35 percent gravel, 10 percent cobbles, and 10 percent stones.
A1--0 to 8 cm; dark grayish brown (10YR 4/2) very stony loam, very dark brown (10YR 2/2) moist; weak very thin platy structure; soft, very friable, slightly sticky and slightly plastic; few very fine roots; common very fine tubular pores; 35 percent gravel, 10 percent cobbles, and 10 percent stones; neutral (pH 7.2); clear smooth boundary. (5 to 10 cm thick)
A2--8 to 25 cm; dark grayish brown (10YR 4/2) very cobbly loam, very dark grayish brown (10YR 3/2) moist; weak very fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; many very fine roots; common very fine tubular pores; 30 percent gravel and 20 percent cobbles; neutral (pH 7.2); clear wavy boundary. (0 to 30 cm thick)
Bt1--25 to 40 cm; brown (10YR 5/3) extremely gravelly loam, dark brown (10YR 3/3) moist; weak very fine subangular blocky structure; slightly hard, friable, moderately sticky and moderately plastic; many very fine, and few fine and medium roots; common very fine tubular and interstitial pores; few faint clay films bridging sand grains and lining pores; 60 percent gravel and 5 percent cobbles; slightly alkaline (pH 7.4); clear wavy boundary. (8 to 30 cm thick)
Bt2--40 to 64 cm; yellowish brown (10YR 5/4) extremely gravelly loam, dark yellowish brown (10YR 3/4) moist; weak very fine subangular blocky structure; slightly hard, friable, moderately sticky and moderately plastic; few very fine roots; common very fine tubular and interstitial pores; common distinct clay films bridging sand grains and lining pores; 55 percent gravel and 10 percent cobbles; slightly alkaline (pH 7.4); abrupt irregular boundary. (10 to 30 cm thick)
R--64 cm; slightly fractured indurated quartzite bedrock.
TYPE LOCATION: White Pine County, Nevada; 13 miles south of Gallagher Gap and 1 mile west of Bone Yard Canyon in the Duck Creek Range, on the National Forest boundary; about 1,500 feet west and 400 feet north of the southeast corner of section 26, T. 17 N., R. 64 E.; USGS Cleve Creek Baldy 7.5 minute topographic quadrangle; latitude 39 degrees, 18 minutes, 18 seconds north and longitude 114 degrees, 44 minutes, 12 seconds west; UTM zone 11N, 695151e, 4353059n, NAD 83.
RANGE IN CHARACTERISTICS:
Soil moisture - Usually moist in winter, spring, and early summer, dry in all parts at least 45 consecutive days following the summer solstice (July and August); Xeric soil moisture regime.
Soil temperature - 4 to 7 degrees C.
Mollic epipedon thickness - 20 to 40 cm, includes the Bt1 horizon.
Depth to base of argillic horizon - 50 to 100 cm.
Depth to bedrock - 50 to 100 cm to a lithic contact.
Control section - Clay content; Averages 20 to 27 percent.
Rock fragment content; Averages 60 to 85 percent, mainly as gravel and cobbles. Lithology of the fragments is mainly quartzite.
A horizon - Value: 4 or 5 dry, 2 or 3 moist.
Chroma: 2 or 3, dry or moist.
Reaction: Neutral or slightly alkaline.
Bt horizons - Value: 4 through 6 dry, 3 or 4 moist.
Chroma: 2 through 4, dry or moist.
Clay content: 20 to 27 percent.
Rock fragments: 60 to 85 percent, mainly as gravel and cobbles.
Consistence: Soft or slightly hard, dry; very friable to friable moist; slightly sticky to moderately sticky and slightly plastic to moderately plastic, wet.
Reaction: Slightly alkaline or moderately alkaline.
COMPETING SERIES: These are the
Chamberlain(ID),
Cowlow(ID),
Crandall(UT),
Ezbin(ID),
Forsey(UT),
Fourme(ID),
Itwo(NV),
Jackflat(CA),
Packer(NV),
Scuffe(NV),
Stopatoe((NV),
Successloop(NV),
Tagum(NV),
Toquima(NV),
Winada(NV), and
Zeebar(ID) series.
The Chamberlain, Ezbin, Forsey, Fourme, and Zeebar soils are very deep.
Cowlow soils have a calcic horizon at 28 to 76 cm.
Crandall soils are deep.
Itwo soils are slightly acid to neutral throughout.
Jackflat soils have a paralithic contact at 100 to 150 cm.
The Packer soils are deep and very deep.
Scuffe, Stopatoe, Tagum, and Winada soils are moderately deep to paralithic contacts.
Successloop soils are very deep, have 27 to 35 percent clay and 35 to 50 percent rock fragments in the particles-size control section.
Toquima soils have surface Oi horizons, have C horizons below the argillic horizons, and have depth to base of the argillic horizon of 10 to 20 inches.
GEOGRAPHIC SETTING: Boneyard soils are on mountain backslopes. These soils formed in colluvium and residuum from quartzite. Slopes are 8 to 75 percent. Elevations are 1,980 to 3,050 m. The climate is moist-subhumid with cold wet winters and warm dry summers. The mean annual precipitation is 450 to 700 mm. The mean annual temperature is 3 to 6 degrees C., and the frost-free period is 40 to 60 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Hutchley,
McIvey,
Segura, and
Tusel series.
Hutchley soils are shallow to bedrock.
McIvey soils have clayey-skeletal families.
Segura soils are very shallow or shallow to bedrock.
Tusel soils are deep and very deep to bedrock
DRAINAGE AND PERMEABILITY: Well drained; medium or high runoff; moderate permeability; moderately high saturated hydraulic conductivity.
USE AND VEGETATION: Boneyard soils are used for livestock grazing and wildlife habitat. The potential native vegetation is mainly curlleaf mountainmahogany, mountain big sagebrush, and bluebunch wheatgrass. This site is correlated to Ecological Site R28BY032NV, Stony Mahogany Savanna.
DISTRIBUTION AND EXTENT: East central Nevada. These soils are not extensive. MLRA 28B.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES PROPOSED: White Pine County, Humboldt-Toiyabe National Forest, South Part, Nevada, 2007. The name is coined from a local drainage way.
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - The zone from the soil surface to 40 cm (A1, A2 and Bt1 horizons).
Argillic horizon - The zone from 25 to 64 cm (Bt1 and Bt2 horizons).
Particle-size control section - The zone from 25 to 64 cm (Bt1 and Bt2 horizons).