LOCATION DAISYPEAK MT
Tentative Series
Rev. SPV/EMM
07/2012
DAISYPEAK SERIES
The Daisypeak series consists of moderately deep, well drained soils that formed in residuum or colluvium over residuum derived from calcareous sedimentary rock sources. These soils are on mountains, ridges, and structural benches. Slopes are 2 to 30 percent. Mean annual precipitation is about 765 millimeters, and mean annual air temperature is about 2 degrees C.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive Calcic Argicryolls
TYPICAL PEDON: Daisypeak cobbly silt loam, forested (colors are for dry soil unless otherwise noted).
Oi--0 to 2 cm; forest litter, slightly decomposed. (0 to 5 cm thick)
A--2 to 16 cm; dark gray (10YR 4/1) cobbly silt loam, very dark gray (10YR 3/1) moist; weak very fine granular structure; soft, very friable, nonsticky and nonplastic; many very fine and fine and few medium roots; few very fine and fine irregular pores; 20 percent gravel, 10 percent cobbles and 2 percent stones; 3 percent coating of carbonates on bottoms of rock fragments; slightly alkaline (pH 7.4); gradual wavy boundary. (10 to 20 cm thick)
Btk--16 to 26 cm; brown (10YR 4/3) very cobbly loam, dark brown (10YR 3/3) moist; moderate fine subangular blocky structure; hard, friable, moderately sticky and moderately plastic; common very fine and fine and few medium roots; few very fine and fine irregular pores; 30 percent distinct clay films on faces of peds; 20 percent gravels and 30 percent cobbles; 30 percent coating of carbonates on bottoms of rock fragments; slightly effervescent; slightly alkaline (pH 7.6); clear smooth boundary. (10 to 30 cm thick)
Bk1--26 to 44 cm; brown (10YR 5/3) very gravelly loam, brown (10YR 4/3) moist; weak fine subangular blocky structure; slightly hard, friable, slightly sticky and moderately plastic; many very fine and fine roots; few very fine and fine irregular pores; 35 percent gravel and 20 percent cobbles; 60 percent carbonate coating around rock fragments; strongly effervescent; slightly alkaline (pH 7.8); gradual wavy boundary.
Bk2--44 to 72 cm; pale brown (10YR 6/3) extremely channery loam, brown (10YR 5/3) moist; weak fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; very few very fine and fine roots; few fine irregular pores; 65 percent channers and 5 percent flagstones; 65 percent carbonate coating around rock fragments and 7 percent very fine threadlike masses of lime in the matrix; strongly effervescent; moderately alkaline (pH 8.0); gradual wavy boundary. (Combined thickness of Bk horizons is 25 to 50 cm thick)
R--72 cm; hard fractured limestone.
TYPE LOCATION: Meagher County, Montana; located about 4,565 feet west and 2,320 feet north of southeast corner of section 34 T 11N., R 11E; Daisy Peak topographic quadrangle; UTM 12T, 0551060E, 5168575N, NAD 83.
RANGE IN CHARACTERISTICS:
Mean annual soil temperature - 0 to 3 degrees C.
Mollic epipedon thickness - 18 to 30 cm
Depth to lithic contact - 50 to 100 cm
Depth to argillic horizon - 15 to 45 cm
Depth to calcic horizon - 15 to 30 cm
A horizon
Value: 3 or 4 dry; 2 or 3 moist
Chroma: 1 or 2; dry or moist
Texture: loam or silt loam
Clay content: 14 to 25 percent
Rock fragments: 10 to 45 percent--5 to 30 percent gravel or channers, 5 to 20 percent cobbles, stones, or flagstones
Reaction: pH 7.0 to 7.6
Btk horizon
Value: 4 to 6 dry; 3 to 5 moist
Chroma: 2 to 4; dry or moist
Texture: loam, silt loam, clay loam
Clay content: 20 to 30 percent
Rock fragments: 35 to 60 percent--15 to 35 percent gravel or channers, 15 to 35 percent cobbles, stones or flagstones
Calcium carbonate equivalent: 5 to 20 percent
Reaction: pH 7.6 to 8.2
Bk horizons
Hue: 2.5Y or 10YR; dry or moist
Value: 5 to 7 dry; 4 to 6 moist
Chroma: 2 to 4; dry or moist
Texture: loam or silt loam
Clay content: 15 to 27 percent
Rock fragments: 40 to 70 percent--30 to 65 percent gravel or channers, 5 to 30 percent cobbles, stones, or flagstones
Calcium carbonate equivalent: 15 to 35 percent
Reaction: pH 7.8 to 8.4
COMPETING SERIES:
Brodie (WY) - is very deep
Cavemountain (NV) - has a xeric moisture regime
Cowcoulee (MT) - has an ustic soil moisture regime
Grassyhollow (WY) - has hues of 2.5YR or 5YR
Hodden (CO) - is very deep
Hoodling (CO) - is very deep
Latigo (ID) - is very deep
Maciver (MT) - is very deep
Nurkey (ID) - has a xeric moisture regime
Teeler (WY) - is very deep
Wilhelm (WY) - is very deep
GEOGRAPHIC SETTING:
Landform - mountains, ridges, and structural benches
Elevation - 2,000 to 2,750 meters
Slope - 2 to 30 percent
Parent material - residuum or colluvium over residuum derived from calcareous sedimentary rock sources. A cap of loess may be present in some areas
Climate - long, cold winters; cool, moist springs; short, cool summers
Mean annual precipitation - 635 to 1000 mm
Mean annual air temperature - 0 to 3 degrees C
Frost-free period - 15 to 50 days
GEOGRAPHICALLY ASSOCIATED SOILS: This is the
Starley series. Starley soils are on convex slope positions and are shallow or very shallow to a lithic contact and do not have an argillic horizon.
DRAINAGE AND PERMEABILITY: Well drained, moderate permeability.
USE AND VEGETATION: Daisypeak soils are primarily used for forestry, rangeland and wildlife habitat. The potential native range vegetation is highly dependent upon elevation and can consist of sedges, Idaho fescue, rough fescue, poverty grass, alpine bluegrass, alpine death camas, vetch, gentain and shrubby cinquefoil. Forested areas consist of a mixed overstory of spruce, Douglas-fir, subalpine fir, lodgepole pine and whitebark pine with an understory of elk sedge, pinegrass, vetch, arnica, clematis, and cleft leaved groundsel.
DISTRIBUTION AND EXTENT: Daisypeak soils are of small extent in central and southwestern Montana. MLRA 43B.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED: Lewis and Clark National Forest Area, Montana, 2011. Daisypeak series is named after Daisy Peak in the Little Belt Mountains in eastern Meagher County, Montana.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - the zone from 2 to 26 cm (A and Btk horizons)
Argillic horizon - the zone from 16 to 26 cm (Btk horizon)
Calcic horizons - the zone from 26 to 72 cm (Btk, Bk1, and Bk2 horizons)
Particle-size control section - the zone from 16 to 26 cm (Btk horizon).
Daisypeak soils have a cryic soil temperature regime and a udic soil moisture regime.
National Cooperative Soil Survey
U.S.A.