LOCATION ASPENBUTTE OR
Tentative Series
Rev. CEG/BTH
01/2025
ASPENBUTTE SERIES
Landscape--Cascade Mountains
Landform--moraines
Slope--0 to 20 percent
Parent material--colluvium and mudflows mixed with volcanic ash over till, colluvium, or residuum derived from basalt and andesite
Mean annual precipitation--about 1200 mm
Mean annual air temperature--about 5.4 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--udic
Soil temperature regime--frigid
Soil moisture subclass--typic
TAXONOMIC CLASS: Medial-skeletal over loamy-skeletal, amorphic over isotic, frigid Alfic Hapludands
TYPICAL PEDON: Aspenbutte gravelly medial sandy loam on a forested moraine with a slope of 14 percent and an elevation of 1597 m
Oi--0 to 1 cm; slightly decomposed plant material; clear smooth boundary.
Oe--1 to 3 cm; moderately decomposed plant material; abrupt wavy boundary.
A1--3 to 12 cm; gravelly medial sandy loam, brown (7.5YR 4/4) dry, very dark brown (7.5YR 2.5/2) moist; moderate fine and medium granular structure; slightly hard, very friable, slightly sticky, and nonplastic; common very fine and fine and few medium and coarse roots; common fine dendritic tubular pores; 20 percent andesite gravel, 2 percent andesite cobbles, and 2 percent andesite stones; slightly acid (pH 6.4); gradual smooth boundary.
A2--12 to 26 cm; gravelly medial sandy loam, brown (7.5YR 5/4) dry, dark brown (7.5YR 3/3) moist; weak medium subangular blocky structure parting to moderate medium and coarse granular structure; slightly hard, very friable, slightly sticky, and nonplastic; common very fine and fine and few medium roots; common fine dendritic tubular pores; 20 percent andesite gravel, 5 percent andesite cobbles, and 2 percent andesite stones; slightly acid (pH 6.3); gradual wavy boundary.
Bw--26 to 62 cm; very cobbly medial sandy loam, brown (7.5YR 5/4) dry, dark brown (7.5YR 3/4) moist; moderate medium subangular blocky structure; slightly hard, very friable, slightly sticky, and nonplastic; few very fine to very coarse roots; few fine and medium dendritic tubular pores; 22 percent andesite gravel, 20 percent andesite cobbles, and 8 percent andesite stones; slightly acid (pH 6.3); clear wavy boundary.
2Bt1--62 to 107 cm; extremely cobbly loam, pale brown (10YR 6/3) dry, brown (7.5YR 4/4) moist; moderate coarse subangular blocky structure; moderately hard, friable, slightly sticky, and slightly plastic; few fine and medium roots; few fine and medium dendritic tubular pores; 40 percent distinct dark brown (7.5YR 3/4) moist clay films on rock fragments and 10 percent faint dark brown (7.5YR 3/4) moist clay films on ped faces; 35 percent fine to coarse andesite gravel, 30 percent andesite cobbles, and 7 percent andesite stones; moderately acid (pH 5.8); gradual smooth boundary.
2Bt2--107 to 165 cm; extremely cobbly sandy loam, light brown (7.5YR 6/3), dark yellowish brown (10YR 3/4) moist; moderate medium subangular blocky; moderately hard, friable, slightly sticky, and nonplastic; few fine and very few medium roots; few fine dendritic tubular pores; 50 percent distinct dark brown (7.5YR 3/3) moist clay films on rock fragments and 5 percent distinct dark brown (7.5YR 3/3) moist clay films on ped faces; 10 percent medium and coarse black (7.5YR 2.5/1) moist manganese coatings around rock fragments and 10 percent medium and coarse black (7.5YR 2.5/1) moist manganese coatings on ped faces; 30 percent andesite gravel, 10 percent andesite paragravel, 35 percent andesite cobbles, 10 percent andesite paracobbles, and 4 percent andesite stones; moderately acid (pH 5.9); gradual smooth boundary.
2Bt3--165 to 208 cm; extremely gravelly sandy loam, light brown (7.5YR 6/4) dry, very dark brown (7.5YR 2.5/3) moist; moderate medium subangular blocky structure; moderately hard, friable, slightly sticky, and nonplastic; very few fine roots; very few fine dendritic tubular pores; 20 percent faint dark brown (7.5YR 3/3) moist clay films on rock fragments; 40 percent andesite gravel, 10 percent andesite paragravel, 18 percent andesite cobbles, 5 percent andesite paracobbles, and 4 percent andesite stones; moderately acid (pH 5.6).
TYPE LOCATION: Klamath County, Oregon; about 0.25 miles north and 2.2 mile east of the intersection of Clover Creek Road and Dead Indian Memorial Road; about 215 m north of the southeast corner of sec. 34, T.37S., R.5E., Willamette Meridian; Lake of the Woods South, Oregon USGS quadrangle; latitude 42.3029167 degrees north, longitude 122.2083056 degrees west, datum WGS84 (coordinates estimated from GPS)
RANGE IN CHARACTERISTICS:
*Soil temperature:frigid regime
*Mean annual soil temperature-- 5.0 to 8.0 degrees C
*Moisture control section--30 to 90 cm; udic regime; dry for 30 to 45 consecutive days
*Rock fragments--strongly cemented to indurated andesite or basalt
*Pararock fragments--weakly to moderately cemented andesite
*Depth to lithologic discontinuity--40 to 95 cm
Particle-size control section
*Rock fragment content--greater than 35 percent, both parts
*Clay content--5 to 20 percent, upper part; 15 to 30 percent, lower part
Estimated properties, A and Bw horizons (upper part of the particle-size control section)
*Thickness--greater than 36 cm
*Ammonium oxalate extractable Al plus 1/2 Fe--2.0 to 3.0 percent
*P retention--85 to 95 percent
*1/3-bar bulk density--0.75 to 0.90 g/cm3
*1500 kPa water (air-dried samples)--15 to 25 percent
Oi and Oe horizons
*Thickness--1 to 10 cm, combined
A horizons
Hue--7.5YR or 10YR dry, 5YR to 10YR moist
Value--3 to 5 dry, 2.5 or 3 moist
Chroma--3 or 4 dry, 2 to 4 moist
Fine-earth texture--medial loam, medial sandy loam
Clay content--5 to 20 percent
Total content of rock and pararock fragments--15 to 85 percent
Paragravel content--0 to 10 percent
Gravel content--10 to 35 percent
Cobble content--0 to 35 percent
Stone content--0 to 5 percent
Boulder content--0 to 4 percent
Reaction--moderately acid to neutral (pH 5.6 to 7.3)
Thickness--5 to 30 cm
Bw horizons
Hue--7.5YR or 10YR dry, 5YR to 10YR moist
Value--3 to 5 dry, 3 or 4 moist
Chroma--3 or 4 dry and moist
Fine-earth texture--medial loam, medial sandy loam
Clay content--10 to 20 percent
Total content of rock and pararock fragments--35 to 85 percent
Paragravel content--0 to 10 percent
Gravel content--22 to 30 percent
Cobble content--10 to 25 percent
Stone content--2 to 10 percent
Boulder content--0 to 10 percent
Reaction--slightly acid to neutral (pH 6.1 to 7.3)
Thickness--25 to 70 cm
2Bw horizons (where present)
Hue--7.5YR or 10YR dry, 5YR to 10YR moist
Value--3 to 5 dry, 3 or 4 moist
Chroma--3 or 4 dry and moist
Fine-earth texture--loam, sandy loam
Clay content--10 to 20 percent
Total content of rock and pararock fragments--35 to 85 percent
Paragravel content--0 to 10 percent
Gravel content--22 to 30 percent
Cobble content--10 to 25 percent
Stone content--2 to 10 percent
Boulder content--0 to 10 percent
Reaction--slightly acid to neutral (pH 6.1 to 7.3)
Thickness--0 to 30 cm
2Bt horizons
Hue--7.5YR or 10YR dry and moist
Value--4 to 6 dry, 3 or 4 moist
Chroma--3 or 4 dry, 3 to 5 moist
Fine-earth texture--loam, sandy loam, clay loam
Clay content--15 to 30 percent
Total content of rock and pararock fragments--36 to 85 percent
Paragravel content--0 to 10 percent
Paracobble content--0 to 15 percent
Gravel content--22 to 30 percent
Cobble content--14 to 35 percent
Stone content--0 to 10 percent
Boulder content--0 to 10 percent
Reaction--moderately acid to slightly acid (pH 5.6 to 6.5)
COMPETING SERIES:
There are no competing series.
GEOGRAPHIC SETTING:
Elevation--1265 to 1900 m
Climate--humid, wet winters and springs
Mean annual air temperature-- 3.9 to 7.0 degrees C
Mean annual soil temperature-- 5.0 to 8.0 degrees C
Mean annual precipitation--600 to 1500 mm
Frost-free period--40 to 90 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Grousehill-- duripan 50 to100 cm from soil surface; oxyaquic; cryic
Kyotesue--no lithologic discontinuity
Nutmeg--medial particle-size class; aquic conditions between 50 to 100 cm; cryic
Skylake--medial particle-size class
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturated hydraulic conductivity (Ksat)--moderately high to high
USE AND VEGETATION:
Use--timber production, wildlife habitat, recreation
Vegetation--white fir, Douglas-fir, ponderosa pine, incense cedar, sugar pine, mountain brome, western prince's pine, sedge
DISTRIBUTION AND EXTENT: Cascade Mountains in southern Oregon; MLRA 3; moderate extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED:
Klamath County, Oregon, 2010
REMARKS:
Diagnostic horizons and other features in this pedon
*Particle-size control section--zone from 3 to 103 cm
*Ochric epipedon
*Andic soil properties--zone from 3 to 62 cm
*Cambic horizon--zone from 26 to 62 cm
*Argillic horizon--62 to 208 cm
*Lithologic discontinuity--upper boundary at 62 cm
ADDITIONAL DATA:
NASIS SITE ID--10-CEG-08; NASIS PEDON ID--10OR683008
*Complete Kellogg Soil Survey Laboratory (KSSL) characterization--lab pedon ID 11N0411
National Cooperative Soil Survey
U.S.A.