LOCATION JONLAKE NVEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Lithic Haplocryolls
TYPICAL PEDON: Jonlake extremely gravelly loam, rangeland. (Colors are for dry soil unless otherwise noted.) The soil surface is covered with approximately 40 percent pebbles, 20 percent cobbles, and 2 percent stones.
A1--0 to 15 cm; grayish brown (10YR 5/2) extremely gravelly loam, very dark grayish brown (10YR 3/2) moist; weak fine subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; many very fine and few fine roots; common very fine tubular and interstitial pores; 55 percent pebbles and 10 percent cobbles; neutral (pH 6.8); clear wavy boundary. (8 to 20 cm thick)
A2--15 to 28 cm; grayish brown (10YR 5/2) extremely gravelly loam, very dark grayish brown (10YR 3/2) moist; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; many very fine and fine roots; common very fine tubular and interstitial pores; 65 percent pebbles and 5 percent cobbles; neutral (pH 6.8); clear wavy boundary. (8 to 18 cm thick)
A3--28 to 36 cm; brown (10YR 5/3) very gravelly loam, dark brown (10YR 3/3) moist; weak fine and medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; many very fine and fine roots; common very fine tubular and interstitial pores; 55 percent pebbles; neutral (pH 6.8); clear wavy boundary. (0 to 13 cm thick)
C--36 to 43 cm; pale brown (10YR 6/3) extremely gravelly loam, brown (10YR 4/3) moist; weak fine subangular blocky structure; soft, very friable, moderately sticky and slightly plastic; common very fine and fine roots; common very fine tubular and interstitial pores; 60 percent pebbles; neutral (pH 6.8); abrupt irregular boundary. (8 to 18 cm thick)
R--43 cm; hard quartzite bedrock.
TYPE LOCATION: White Pine County, Nevada; about 0.25 mile north of Pine Creek in Great Basin National Park; USGS Wheeler Peak 7.5 minute topographic quadrangle; latitude 38 degrees, 59 minutes, 59 seconds north, longitude 114 degrees, 20 minutes, 45 seconds west; UTM Zone 11, 729847e, 4320091n[c1], NAD83.
RANGE IN CHARACTERISTICS:
Soil moisture - Usually moist; moist in winter, spring and early summer dry in all parts at least 45 consecutive days following the summer solstice (July and August), but intermittently moist in the upper part for 10 to 20 days cumulative due to convection storms between July and September; Xeric soil moisture regime.
Soil temperature: 4 to 7 degrees C.
Mean summer soil temperature: 7 to 8 degrees C
Mollic epipedon thickness: 18 to 38 cm.
Depth to bedrock - 30 to 50 cm.
Control section - Clay content: Averages 18 to 25 percent.
Rock fragments: Averages 50 to 80 percent, dominantly pebbles. Lithology of fragments is dominantly quartzite.
A horizons - Value: 4 or 5 dry, 2 or 3 moist.
Chroma: 2 or 3, dry or moist.
Reaction: Slightly acid or neutral.
C horizon - Value: 6 or 7 dry, 3 or 4 moist.
Chroma: 2 through 4, dry or moist.
Consistence: Slightly sticky or moderately sticky.
Rock fragments: Averages 50 to 80 percent, dominantly pebbles.
Reaction: Slightly acid or neutral.
COMPETING SERIES: These are the
Arrowpeak(MT),
Cheadle(MT),
Chokecherry(ID),
Clamp(OR),
Dalys(MT),
Dollarhide(ID),
Eyre(CO),
Irigul(WY),
Irson(WY),
Labshaft(NV),
Milling(WA),
Poin(MT),
Rogert(CO),
Schwacheim(CO),
Starley(WY),
Topeki(NV) and
Udel(NV) series.
Arrowpeak soils have 10 to 20 percent clay in the control section.
Cheadle soils are calcareous, and are slightly to strongly alkaline in the A2 horizon.
Chokecherry soils have 10 to 18 percent clay in the particle-size control section.
Clamp soils are 10 to 30 cm to a lithic contact, and have 27 to 35 percent clay in their control section.
Dalys soil are 8 to 25 cm deep to a lithic contact.
Dollarhide soils have Bw horizons and have 8 to 18 percent clay in the control section.
Eyre soils have 8 to 18 percent clay, and dominantly flagstone rock fragments in the control section.
Irigul soils have dominantly channer rock fragments in the control section.
Irson soils have a MAST of 0 to 2 degrees C. and have more than 35 percent fine sand or coarser in the control section.
Labshaft soils have Bw horizons, and have 25 to 35 percent clay in the control section.
Milling soils have Bw horizons.
Poin soils have 5 to 18 percent clay in the control section.
Rogert soils have 5 to 18 percent clay in the control section.
Schwacheim soils have Bw horizons and a udic soil moisture regime bodering on ustic
Starley soils have Ck horizons with 5 to 40 percent calcium carbonate equivalent, and have dominantly cobble-size rock fragments in the control section.
Topeki soils have dominantly cobbles and stones in the control section.
Udel soils have a lithic contact within 25 cm.
GEOGRAPHIC SETTING: Jonlake soils are on mountains and typically occur on summit and backslope positions. These soils formed in residuum and colluvium from quartzite with local admixtures of argillite. Slopes are 15 to 50 percent. Elevations are 2,220 to 3,170 m. The climate is moist-subhumid, cold wet winters and warm dry summers. The mean annual precipitation is 450 to 700 mm and the mean annual temperature is 3 to 6 degrees C., and the frost-free season is 40 to 60 days.
GEOGRAPHICALLY ASSOCIATED SOILS: Hapgood and Topeki series. Hapgood soils are very deep and have mollic epipedons which are greater than 40 cm thick. Topeki soils have dominantly cobble and stone rock fragments in their control section.
DRAINAGE AND PERMEABILITY: Well drained; medium to very high runoff; slow or moderate permeability; moderately high saturated hydraulic conductivity.
USE AND VEGETATION: Livestock grazing, recreation and wildlife habitat. The potential native vegetation is mainly low sagebrush, bluebunch wheatgrass and bluegrass. This site is correlated to Ecological Site R28AY061NV Claypan 14+ P.Z.
DISTRIBUTION AND EXTENT: East Central Nevada. MLRA 28A. These soils are not extensive.
MLRA OFFICE RESPONSIBLE: Reno, Nevada
SERIES ESTABLISHED: White Pine County, Nevada, East Part. 2004. The name is coined.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - The zone from the surface to about 36 cm (A1, A2 and A3 horizons).
Lithic contract - The boundary at about 43 cm.
Particle-size control section - The zone from 25 to 43 cm (part of the A2, A3 and C horizons.