LOCATION INSHORE OR
Tentative Series
IRD. CEG\MPR
02/2025
INSHORE SERIES
Landscape--Pumice mantled plateau
Landform--flood plains on relict lakeshores; flood-plain steps on valley floors
Slope--0 to 1 percent
Parent material--loamy alluvium including volcanic ash and minor amounts of diatomaceous sediments over sandy alluvium derived from coarse, pumiceous volcanic ash and pumiceous tephra
Mean annual precipitation--670 mm
Mean annual air temperature--7 degrees C
Depth class--very deep
Drainage class--poorly drained
Soil moisture regime--aquic
Soil temperature regime--cryic
Soil moisture subclass--typic
TAXONOMIC CLASS: Ashy-pumiceous, glassy Aquandic Cryaquolls
TYPICAL PEDON: Inshore ashy sandy loam - meadow, with 2 percent surface cover of pumice paracobbles, on a 0.5 percent slope at 1378 m elevation.
Oe--0 to 4 cm; moderately decomposed plant material, very dark gray (10YR 3/1) dry, black (10YR 2/1) moist; weak fine granular structure; soft, very friable, nonsticky and nonplastic; many very fine and fine, and few medium roots; many very fine and common fine dendritic tubular pores; clear smooth boundary
A1--4 to 12 cm; ashy sandy loam, very dark gray (10YR 3/1) dry, black (10YR 2/1) moist; weak medium subangular blocky structure; soft, very friable, slightly sticky and nonplastic; common very fine and fine, and few medium roots; common very fine dendritic tubular pores; 2 percent subrounded fine and medium pumice paragravel; noneffervescent; slightly acid (pH 6.5); clear smooth boundary
A2--12 to 30 cm; ashy sandy loam, dark gray (10YR 4/1) dry, black (10YR 2/1) moist; moderate medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; few very fine, fine, and medium roots; common fine dendritic tubular pores; 12 percent subrounded fine and medium pumice paragravel; noneffervescent; neutral (pH 7.3); clear smooth boundary
2Eg--30 to 60 cm; very paragravelly ashy loamy coarse sand, light gray (10YR 7/1) dry, brown (7.5YR 4/2) moist; weak medium and coarse subangular blocky structure; soft, very friable, nonsticky and nonplastic; few very fine, fine, and medium roots; 1 percent fine, prominent irregular iron-manganese masses in matrix, dark yellowish brown (10YR 4/6) moist; 2 percent pumice paracobbles and 40 percent fine to coarse pumice paragravel; noneffervescent; 2 cm thick lens of diatomaceous silt, black (10YR2/1) moist, from 55 to 57 cm; neutral (pH 7.0); clear smooth boundary
2BC1--60 to 90 cm; very paragravelly ashy coarse sandy loam, white (10YR 8/1) dry, 90 percent brown (7.5YR 4/3) and 10 percent brownish yellow (10YR 6/6) moist; massive; hard, very friable, nonsticky and nonplastic; 2 percent fine prominent irregular iron-manganese masses in matrix and 3 percent fine prominent platy iron-manganese masses at top of horizon, dark yellowish brown (10YR 4/6) moist; 2 percent fine faint irregular iron-manganese masses in matrix and 3 percent fine faint platy iron-manganese masses at top of horizon, strong brown (7.5YR 4/6) moist; 5 percent fine prominent irregular iron-manganese masses around pararock fragments, dark yellowish brown (10YR 4/6) moist, and 5 percent fine faint irregular iron-manganese masses around pararock fragments, strong brown (7.5YR 4/6) moist; 45 percent by volume subrounded fine to coarse pumice paragravel; noneffervescent; neutral (pH 7.0); clear smooth boundary
2BC2--90 to 135 cm; paragravelly ashy loamy coarse sand, white (10YR 8/1) dry, light brown (7.5YR 6/4) moist; massive; hard, very friable, nonsticky and nonplastic; common fine interstitial pores; 15 percent fine distinct iron-manganese masses in matrix and around pararock fragments, strong brown (7.5YR 4/6) moist; 2 percent subrounded fine and medium gravel and 20 percent by volume fine to coarse pumice paragravel; noneffervescent; slightly acid (pH 6.5); gradual smooth boundary
2C--135 to 200 cm; very paragravelly ashy loamy coarse sand, very pale brown (10YR 7/3) dry, strong brown (7.5YR 5/6) moist; massive; loose, nonsticky and nonplastic; 5 percent fine prominent manganese masses in matrix, black (N 2.5/) moist; 15 percent fine to medium distinct iron-manganese masses in matrix, dark reddish brown (5YR 3/4) moist; 2 percent subrounded fine and medium gravel, 5 percent subrounded pumice paracobbles, and 40 percent subrounded fine to coarse pumice paragravel; noneffervescent; neutral (pH 7.0)
TYPE LOCATION: Klamath County, Oregon; about 13 miles north and 4 miles east of the town of Chiloquin, Oregon; about 365 m north and 325 m west of the southeast corner of Section 29, Township 32 S, Range 8 E; Willamette Meridian; Fuego, Oregon U.S. Geological Survey quadrangle; latitude 42.7655730 degrees north, longitude 121.7838860 degrees west, datum WGS 84 (coordinates derived from GPS unit)
RANGE IN CHARACTERISTICS:
Soil Temperature: cryic regime
Mean annual soil temperature--5 to 8 degrees C
Moisture control section--20 to 60 cm; aquic regime; saturated (episaturation above the root limiting layer; endosaturation below the root-limiting layer) in some part for 30 to 90 days from April through June in normal years
Thickness of mollic epipedon--20 to 45 cm
Rock fragments--pumice paragravel and paracobbles
Organic matter--regular decrease with depth
Depth to redox concentrations--25 to 60 cm
Depth to aquic conditions--20 to 50 cm
Depth to lithologic discontinuity--10 to 70 cm
Depth to root-limiting layer (dry rupture resistance is hard)--30 to 70 cm
Particle-size control section
*Clay content--5 to 18 percent (weighted average)
*Pumice rock fragment content--35 to 80 percent (weighted average)
Estimated andic properties:
*Ammonium oxalate extractable Al plus 1/2 Fe--0 to 0.2 percent
*Medium to very coarse sand in the .02 to 2.0 mm fraction--greater than 50 percent
*P-retention--3 to 25 percent
*Volcanic glass content--25 to 90 percent glass and glass-coated aggregates
*1/3-bar bulk density--0.60 to 1.10 g/cm3
*1500 kPa water (air-dried samples)--5 to 25 percent
Oe horizon (or Oa, present in some pedons)
*Thickness--0 to 10 cm
A horizons
Hue--10YR, moist or dry
Value--2 or 3 moist, 4 or 5 dry
Chroma--1 or 2, moist or dry
Fine-earth texture--ashy loamy sand, ashy sandy loam, ashy loam, ashy silt loam
Clay content--6 to 19 percent
Paragravel content--0 to 20 percent
Paracobble content--0 to 2 percent
Reaction--moderately acid to neutral (pH 5.6 to 7.3)
Organic matter content--1 to 10 percent
Thickness--20 to 70 cm
2Eg horizons (or 2Bw horizons, present in some pedons)
Hue--5YR, 7.5YR, or 10YR, moist or dry
Value--3 to 7 moist, 5 to 8 dry
Chroma--1 to 3 moist; 1 or 2 dry
Fine-earth texture--ashy loamy coarse sand, ashy loamy sand, ashy sandy loam
Clay content--5 to 14 percent
Paragravel content--15 to 55 percent
Gravel content--0 to 2 percent
Paracobble content--0 to 50 percent
Reaction--slightly acid or neutral (pH 6.1 to 7.3)
Organic matter content--0.5 to 2 percent
2BC horizons
Hue--5YR, 7.5YR, or 10YR, moist or dry
Value--3 to 7 moist, 5 to 8 dry
Chroma--3 to 6 moist; 2 to 5 dry
Fine-earth texture--ashy sand, ashy loamy coarse sand, ashy loamy sand, ashy coarse sandy loam
Clay content--3 to 14 percent
Paragravel content--2 to 55 percent
Gravel content--0 to 5 percent
Paracobble content--0 to 50 percent
Reaction--slightly acid or neutral (pH 6.1 to 7.3)
Organic matter content--0.1 to 1 percent
2C horizons (when present)
Hue--5YR, 7.5YR, or 10YR, moist or dry
Value--3 to 7 moist, 5 to 8 dry
Chroma--3 to 6 moist; 2 to 5 dry
Fine-earth texture--ashy coarse sand, ashy sand, ashy loamy coarse sand, ashy loamy sand
Clay content--3 to 14 percent
Paragravel content--30 to 65 percent
Gravel content--0 to 10 percent
Paracobble content--0 to 10 percent
Reaction--slightly acid or neutral (pH 6.1 to 7.3)
Organic matter content--0 to 0.5 percent
COMPETING SERIES:
There are no competing series
GEOGRAPHIC SETTING:
Elevation--1370 to 1660 m
Climate--cold, moist winters and cool, dry summers
Mean annual air temperature-- 4 to 7 degrees C
Mean annual precipitation--470 to 780 mm
Frost-free period--10 to 50 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Chinchallo--on floodplains and relict lakebeds; ochric epipedon; loamy over ashy or ashy-pumiceous particle size class; limnic, diatomaceous silts over pumiceous sand alluvium
Cosbie--on drainageways and swales; ochric epipedon; loamy over ashy or ashy-pumiceous particle-size class; grassy organic material over diatomaceous earth over pumiceous sand alluvium
Skellock--on relict lakeshores on pyroclastic flows and volcanic fields; ochric epipedon; ashy-pumiceous particle-size class; 50 to 100 cm to aquic conditions (somewhat poorly drained); pumiceous sand alluvium
Moyina--in marshes and flood plains; umbric epipedon; coarse-silty particle-size class; limnic diatomaceous sediments over organic material over pumiceous sand alluvium
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--poorly drained
Saturation in normal years--both episaturation (above the root-limiting layer) and endosaturation; upper limit of saturation between 0 and 70 cm from the soil surface, between April and June
Flooding--none
Ponding--frequent, long ponding, April through May
Saturated hydraulic conductivity (Ksat)--moderately high to very high above the lithologic discontinuity (A horizons); low to moderately low below the lithologic discontinuity and in the root-restrictive horizon(s) (2Eg and 2BC horizons); high to very high below the lithologic discontinuity and below the root-restrictive horizons (2BC and 2C horizons)
USE AND VEGETATION:
Use--native meadow hay and pasture, and wildlife
Vegetation--Cusick's bluegrass, Sandberg bluegrass, Kentucky bluegrass, Nebraska sedge, Baltic rush, pussytoes, cinquefoil, buttercup
DISTRIBUTION AND EXTENT: Cascade Mountains, Eastern Slope, Oregon; MLRA 6; small extent
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Bozeman, Montana
SERIES PROPOSED:
Klamath County Oregon, 2007
Origin of the name--the name is coined
REMARKS:
Diagnostic horizons and features in this pedon
*Mollic epipedon--zone from 4 to 30 cm
*Volcanic glass--throughout mineral soil (zone from 4 to 200 cm)
*Aquic conditions--zone from 30 to 200 cm
*Redoximorphic concentrations--zone from 30 to 200 cm
*Redoximorphic depletions--zone from 30 to 60 cm (depleted matrix)
*Lithologic discontinuity--at 30 cm (upper boundary of the 2Eg horizon)
*Particle-size control section--zone from 29 to 104 cm
NASIS Site ID and Pedon ID 2007OR035013
ADDITIONAL DATA:
Kellogg Soil Survey Laboratory (KSSL) characterization for a pedon of Inshore soil--08N0200 (NASIS Site ID 07-CEG-018; NASIS Pedon ID S2007OR681002)
National Cooperative Soil Survey
U.S.A.