LOCATION GIVEOUT OREstablished Series
TAXONOMIC CLASS: Medial, ferrihydritic, frigid Alic Hapludands
TYPICAL PEDON: Giveout gravelly medial loam - woodland, on a 30 percent west-facing slope at 1,890 feet elevation. (Colors are for moist soil unless otherwise noted. When described on October 5, 1998 the soil was moist throughout.)
Oi--0 to 1 inch; slightly decomposed plant materials; abrupt smooth boundary.
A--1 to 16 inches; dark brown (7.5YR 3/3) gravelly medial loam, brown (7.5YR 5/3) dry; moderate very fine and fine granular structure; slightly hard, friable, nonsticky and nonplastic; moderately smeary; many very fine and fine, and common medium roots; many very fine and fine, and few coarse irregular pores; common, fine and medium, dark reddish brown (5YR 3/2) and yellowish red (5YR 5/6) iron-manganese concretions, spherical in the matrix, very weakly cemented; 25 percent gravel and 3 percent cobbles; strongly acid (pH 5.5); NaF pH 11.2; clear smooth boundary. (10 to 20 inches thick)
Bw1--16 to 28 inches; brown (7.5YR 4/4) gravelly medial loam, brown (7.5YR 5/4) dry; weak very fine and fine subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; moderately smeary; common very fine, fine, and medium, and few coarse roots; many very fine and fine, and few medium and coarse tubular pores; common, medium, dark reddish brown (5YR 3/3) and yellowish red (5YR 5/6) iron-manganese concretions, spherical in the matrix, very weakly cemented; 20 percent gravel and 2 percent cobbles; strongly acid (pH 5.1); NaF pH 10.6; clear smooth boundary.
Bw2--28 to 36 inches; strong brown (7.5YR 4/6) gravelly medial loam, strong brown (7.5YR 5/6) dry; weak fine and medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; weakly smeary; few fine, medium, and coarse roots; common very fine and fine, and few medium and coarse tubular pores; common, medium, dark reddish brown (5YR 3/4) and reddish yellow (5YR 6/6) iron-manganese concretions, spherical in the matrix, very weakly cemented; 15 percent gravel and 1 percent cobbles; 15 percent paragravel; strongly acid (pH 5.2); NaF pH 9.9; abrupt wavy boundary. (Combined thickness of the Bw horizon is 10 to 20 inches)
Cr--36 inches; weakly cemented, highly weathered basalt; fractured at intervals of 18 to less than 39 inches.
TYPE LOCATION: Benton County, Oregon; located about 750 feet south and 2,300 feet west of the northeast corner of section 18, T. 13S., R. 7W. (Latitude 44 degrees, 26 minutes, 44 seconds N.; Longitude 123 degrees, 35 minutes, 06 seconds W.; Alsea, OR 7.5 minute USGS Quad; NAD 1927)
RANGE IN CHARACTERISTICS:
Soil moisture: Udic moisture regime
Mean annual soil temperature: 43 to 47 degrees F., and the mean summer soil temperature is above 47 degrees F. with an O horizon present
Depth to bedrock: 20 to 40 inches to weakly cemented, highly weathered paralithic contact
Umbric epipedon thickness: 10 to 20 inches thick
Particle-size control section:
Clay content - 18 to 30 percent (field estimate)
Coarse fragments - 15 to 35 percent rock fragments; 0 to 20 percent pararock fragments
Moist bulk density - 0.75 to 0.90 grams per cubic centimeter (field estimate)
Phosphate retention - 85 percent or greater
Acid-oxalate extractable aluminum plus one-half iron - 2.0 to 4.0 percent
KCl-extractable aluminum - 2 to 15 cmol/kg
15-bar moisture content (air dried) - 15 to 30 percent (assumed, based on similar soils)
Hue - 7.5YR or 10YR
Soil reaction - Very strongly acid or strongly acid
Other features: The solum has weakly smeary or moderately smeary consistence (field estimate)
A horizon
Value: 2 or 3 moist, 4 or 5 dry
Chroma: 2 or 3 moist and dry
Texture: GR-medial L
Clay content: 12 to 20 percent
Rock fragments: 15 to 25 percent gravel, 0 to 3 percent cobbles
Pararock: fragments: 0 to 5 percent paragravel
Organic matter content: 5 to 10 percent
Bw horizon
Value: 3 to 5 moist, 4 to 6 dry
Chroma: 4 to 6 moist and dry
Texture: GR-medial L, medial L, GR-medial CL, medial CL, PGR-medial L, PCB-medial L, PGR-medial CL, and PCB-medial CL
Clay content: 18 to 30 percent
Rock fragments: 5 to 25 percent gravel, 0 to 3 percent cobbles
Pararock fragments: 0 to 20 percent paragravel, 0 to 20 percent paracobbles
COMPETING SERIES: These are the
Marty,
Murtip, and
Tolany series.
Marty (OR) - ochric epipedon; greater than 60 inches deep to bedrock. The Marty series cannot be separated adequately from the Tolany soil. Further investigation is needed,
Murtip (OR) - depth to paralithic contact is 40 to 60 inches; umbric epipedon 10 to 20 inches thick
Tolany (OR) - ochric epipedon; greater than 60 inches deep to bedrock.
GEOGRAPHIC SETTING:
Parent material: Loamy colluvium and residuum derived from basalt of the Siletz River Volcanics Formation and coarse-grained intrusive igneous rocks
Landform: Mountains
Landform position: Summits, shoulders, and backslopes
Slopes: 5 to 60 percent
Elevation: 1,800 to 3,000 feet
Climate: Cool, wet winters; warm, moist summers
Mean annual temperature: 42 to 46 degrees F
Mean annual precipitation: 90 to 130 inches
Frost free period: 70 to 120 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are
Caterl,
Laderly,
Mulkey,
Murtip, and
Romanose soils. Caterl, Laderly, Murtip, Romanose,
Valsetz, and
Yellowstone soils. These soils occur on summits and side slopes of mountains. All soils are forested except for the Mulkey series, which occurs in open grassland areas. Mulkey, Valsetz, and Yellowstone soils occur in the cryic temperature regime on adjacent higher mountain slopes.
Caterl - medial-skeletal; 40 to 60 inches deep to a lithic contact
Laderly - medial-skeletal; 20 to 40 inches deep to a lithic contact
Mulkey - medial; 20 to 40 inches deep to a lithic contact; umbric epipedon greater than 20 inches thick.
Murtip - medial; 40 to 60 inches deep to a paralithic contact
Romanose - medial-skeletal; less than 20 inches deep to a lithic contact
Valsetz - medial-skeletal; 20 to 40 inches deep to a lithic contact
Yellowstone - medial-skeletal; 10 to 20 inches deep to a lithic contact
DRAINAGE AND PERMEABILITY: Well drained; moderate permeability.
USE AND VEGETATION: These soils are used for timber production, recreation, wildlife habitat and watersheds. Potential native vegetation is Douglas fir, western hemlock, red huckleberry, western swordfern, baldhip rose, thimbleberry, salal, Pacific rhododendron, cascade Oregongrape, vine maple, common beargrass, evergreen violet and western brackenfern. Scattered amounts of noble fir, Pacific silver fir, and tall blue huckleberry may occur in some areas at the higher elevations within the frigid zone and are recognized as cool phases.
DISTRIBUTION AND EXTENT: Central portion of the Coast Range Mountains of Oregon; MLRA 1. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Benton County, Oregon, 2004. The name is taken from Giveout Mountain in Tillamook County, Oregon.
REMARKS: Diagnostic horizons and features recognized in this pedon include:
Umbric epipedon - from the mineral soil surface to a depth of 16 inches (A horizon).
Cambic horizon - from depths of 16 to 36 inches (Bw1, Bw2 horizons).
Andic soil properties - from the mineral soil surface to 36 inches (A, Bw1, Bw2 horizons). Based on lab data from associated soils and field observations.
Particle-size control section - from the mineral soil surface to 36 inches.
Depths to diagnostic horizons and features are measured from the top of the first mineral layer.
The Giveout series was originally recognized in the Tillamook County, Oregon Soil Survey. Due to its limited extent the tentative series was discontinued from use. The concept of this series was renewed in the Benton County, Oregon Soil Survey Update, and the series type location has been moved to Benton County.