LOCATION TRIBBEY                 OK

Established Series
Rev. CRC:CEW:JLD
03/2016

TRIBBEY SERIES

The Tribbey series consists of very deep, somewhat poorly drained soils that formed in loamy alluvium of recent age. These nearly level to very gently sloping soils are on narrow flood plains in river valleys in the North Cross Timbers (MLRA 84A). Slope ranges from 0 to 2 percent. Mean annual air temperature is 16 degrees C (61 degrees F), and mean annual precipitation is 889 mm (35 in).

TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, nonacid, thermic Oxyaquic Udifluvents

TYPICAL PEDON: Tribbey fine sandy loam -- improved pasture, at an elevation of 335 m (1100 ft). (Colors are for moist soil unless otherwise stated.)

A--0 to 25 cm (0 to 10 in); red (2.5YR 4/6) fine sandy loam, red (2.5YR 5/6) dry; weak fine granular structure; slightly hard, very friable; few faint stratifications; slightly alkaline; clear smooth boundary. (Thickness of the A horizon is 10 to 36 cm [4 to 14 inches])

C1--25 to 102 cm (10 to 40 inches); red (2.5YR 4/6) crushed, strata of fine sandy loam, loamy fine sand, and fine sand; massive; slightly hard, very friable; saturated with water at 76 cm (30 inches); moderately alkaline; clear smooth boundary.

C2--102 to 127 cm (40 to 50 in); red (2.5YR 4/6) crushed, strata of fine sandy loam, loamy fine sand and fine sand; massive; slightly hard, very friable; saturated with water; noneffervescent; moderately alkaline; clear smooth boundary. (Combined thickness of the C horizon is 66 to 152 cm [26 to 60 in])

Ab--127 to 165 cm (50 to 65 in); very dark grayish brown (10YR 3/2) loam; weak fine granular structure; slightly hard, friable; saturated with water; common fine distinct red (2.5YR 4/6) masses of iron accumulation with clear boundaries; common fine distinct gray (10YR 5/1) iron depletions with __ boundaries; slight effervescent; moderately alkaline.

TYPE LOCATION: Pottawatomie County, Oklahoma; about 5 miles west and 1 mile south of Bethel; 1,400 feet south and 200 feet east of the northwest corner of sec. 33, T. 10 N., R. 2 E.

USGS topographic quadrangle: Shawnee Reservoir, OK
Latitude: 35 degrees, 18 minutes, .72 seconds N
Longitude: 97 degrees, 6 minutes, 22.32 seconds W
Datum: NAD 83

Decimal Degrees:
Latitude: 35.3002
Longitude: -97.1062

UTM Easting: 672189
UTM Northing: 3907979
UTM Zone: 14N

RANGE IN CHARACTERISTICS:
Depth to bedrock: greater than 152 cm (60 in)
Buried horizons: common at depths of (102 to 140 cm (40 to 55 in)
Endosaturation: this soil is saturated with water in all layers to a depth of 203 cm (80 in) or more, for 20 or more consecutive days, or 30 or more cumulative days in normal years

A horizon:
Hue: 2.5YR to 10YR
Value: 4 or 5 dry, 3 or 4 moist
Chroma: 3 to 8 dry or moist.
Texture: loamy fine sand, fine sandy loam, loam, or clay loam
Effervescence: none to slight
Reaction: moderately acid to moderately alkaline

C horizon:
Hue: 2.5YR to 10YR
Value: 4 to 6 dry, 3 or 4
Chroma: 4 to 8 dry or moist
Texture: stratified loamy fine sand, loamy very fine sand, fine sandy loam, or loam
Effervescence: none to slight
Reaction: moderately acid to moderately alkaline

Ab horizon:
Hue: 5YR to 10YR
Value: 3 or 4 dry, 2 or 3 moist
Chroma: 2 to 4 dry or moist.
Texture: fine sandy loam, loam, sandy clay loam, or clay loam
Effervescence: none to slight
Reaction: neutral to moderately alkaline

COMPETING SERIES: This is the somewhat poorly drained Pepperwood (CA) series.

GEOGRAPHIC SETTING:
Parent material: loamy alluvial sediments of recent age
Landscape: river valleys
Landform: flood plains
Slope: 0 to 2 percent
Mean annual precipitation: 762 to 1002 mm (30 to 40 in)
Mean annual air temperature: 14 to 17 degrees C (58 to 62 degrees F)
Frost-free period: 200 to 230 days
Elevation: 244 to 366 m (800 to 1200 ft)
Thornthwaite Annual P-E indices: 48 to 64

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Pulaski soils (OK).
Pulaski soils: are well drained and occur on slight rises

DRAINAGE AND PERMEABILITY:
Drainage: somewhat poorly drained
Permeability: moderate
Saturated hydraulic conductivity: moderate
Runoff: high
Endosaturation: this soil is saturated with water in all layers to a depth of 203 cm (80 in) or more, for 20 or more consecutive days, or 30 or more cumulative days in normal years
Flooding: frequent for brief periods throughout the year

USE AND VEGETATION: Used mainly for improved pasture and rangeland. Native vegetation consists of willow trees with an understory of tall grasses.

DISTRIBUTION AND EXTENT: Oklahoma; LRR H; North Cross Timbers (MLRA 84A); moderately extensive.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas

SERIES ESTABLISHED: Pottawatomie County, Oklahoma; 1974.

REMARKS:
These soils were formerly included in the Pulaski series. Extensive revisions to the OSD as a result of the SDJR Initiative (JLD 03/2016.

Diagnostic horizons and features in this pedon are:
Ochric epipedon: 0 to 25 cm (0 to 10 inches) (A horizon)
Oxyaquic Udifluvents features: soils with an udic moisture regime that have an apparent water (endosaturation) table within 50 to 102 cm (20 to 40 in) of the soil surface
Buried horizon: 127 to 165 cm (50 to 65 in) (Ab horizon)

ADDITIONAL DATA: None

Taxonomic Version: Keys to Soil Taxonomy, Twelfth Edition, 2014

---

National Cooperative Soil Survey
U.S.A.