LOCATION TEETERS OR+CAEstablished Series
TAXONOMIC CLASS: Ashy, glassy, calcareous, mesic Aquandic Endoaquepts
TYPICAL PEDON: Teeters silt loam, irrigated pasture. (Colors are for moist soil unless otherwise noted.)
Ap--0 to 8 inches; black (10YR 2/1) silt loam, gray (10YR 5/1) dry; very dark gray (10YR 3/1) crushed; moderate medium platy structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine roots; common very fine tubular pores; strongly effervescent; strongly alkaline (pH 9.0); abrupt wavy boundary. (7 to 12 inches thick)
ACkz--8 to 16 inches; very dark gray (2.5Y 3/1) silt loam, gray (10YR 6/1) dry; few medium distinct dark yellowish brown (10YR 3/4) mottles; massive; slightly hard, friable, slightly sticky and slightly plastic; common very fine roots; common very fine tubular pores; strongly effervescent; strongly alkaline (pH 8.8); clear wavy boundary. (0 to 15 inches thick)
Ckz--16 to 30 inches; dark gray (5YR 4/1) silt, light gray (N 7/ ) dry; common medium distinct strong brown (7.5YR 5/6) mottles in root channels; massive with horizontal cleavage; slightly hard, friable, nonsticky and nonplastic; common very fine roots; few very fine tubular pores; strongly effervescent; strongly alkaline (pH 8.7); clear wavy boundary. (10 to 20 inches thick)
C2--30 to 36 inches; dark gray (N 4/ ) silt, light gray (N 7/ ) dry; common medium distinct dark yellowish brown (10YR 3/4) mottles; massive with horizontal cleavage; hard, friable, nonsticky and nonplastic; few very fine roots; few very fine tubular pores; weakly effervescent; strongly alkaline (pH 8.6); gradual wavy boundary. (0 to 10 inches thick)
C3--36 to 45 inches; dark gray (10YR 4/1) and very dark gray (10YR 3/1) silt loam, gray (10YR 6/1) dry; dark grayish brown (10YR 4/2) crushed; massive with horizontal cleavage; hard, firm, nonsticky and nonplastic; few very fine tubular pores; moderately alkaline (pH 8.4); gradual irregualar boundary. (5 to 12 inches thick)
C4--45 to 62 inches; dark gray (N 4/ ) silt, white (N 8/ ) dry; common medium faint very dark gray (2.5Y 3/1) mottles; massive with horizontal cleavage; hard, firm, nonsticky and nonplastic; few very fine tubular pores; moderately alkaline (pH 8.4).
TYPE LOCATION: Klamath County, Oregon; about 4 miles southeast of the town of Keno; 600 feet west and 200 feet north of the east 1/4 corner of section 16, T. 40 S., R. 8 E.
RANGE IN CHARACTERISTICS: The mean annual soil temperature is 47 to 51 degrees F. The soils are moistened throughout by a water table. Depth to bedrock is more than 60 inches. The A horizon is strongly or very strongly alkaline and alkalinity decreases with depth below 20 inches in the profile. The soil is calcareous in all parts at depths between 10 to 20 inches. The mollic epipedon is 7 to 24 inches thick. Estimated bulk density at 1/3 bar water retention is 0.4 to 0.7 gm/cc. The exchange complex is dominated by amorphous materials and the soils have high amounts of diatoms and sponge spicules.
The A horizon has value of 2 or 3 moist and chroma of 0 or 1 moist or dry.
The C horizon has hue of neutral, 10YR, 2.5Y, and 5YR, value of 2 through 6 moist, 4 through 8 dry, and chroma of 0 through 2 moist and dry. Mottles have moist value of 4 or 5 and chroma of 1 through 6. It is silt or silt loam.
COMPETING SERIES: This is the Emdent series and the similar Algoma and Tulana series. The Emdent soils lack mottles. The Algoma soils contain fine sand contrasting textures at 20 to 40 inches. The Tulana soils are noncalcareous and nonsodic.
GEOGRAPHIC SETTING: Teeters soils are on flood plains and drained lake bottoms. Elevations range from 4,085 to 4,240 feet. The soils formed in silty sediments consisting mostly of diatoms, sponge spicules, ash, and related materials. The climate is semiarid with warm dry summers and cold moist winters. The mean annual precipitation is 10 to 14 inches. The mean January temperature is 28 degrees F.; the mean July temperature is 67 degrees F.; and the mean annual temperature is 46 to 49 degrees F. The frost-free period is 65 to 110 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Henley and competing Algoma and Tulana soils. Henley soils have an ochric epipedon and an indurated duripan at depth of 20 to 40 inches.
DRAINAGE AND PERMEABILITY: Poorly drained; very slow runoff; slow permeability.
USE AND VEGETATION: The soils are used for irrigated pasture and barley, wildlife habitat, and recreation. Inland saltgrass and Baltic rush are the major plants on unreclaimed soils.
DISTRIBUTION AND EXTENT: Lake basins in south-central Oregon. The soils are inextensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: Klamath County, Oregon, 1977.
REMARKS: Estimates of bulk density and mineralogy are based on laboratory data for the similar and geographically associated Tulana series.