LOCATION BRILEY TX+AR LA

Established Series
RD:GLL:ACP:MJB
10/2016

BRILEY SERIES

The Briley series consists of very deep, sandy, well drained soils, that formed in sandy and loamy Coastal Plain marine deposits on the Sparta, Queen City, and Carrizo Sands. These gently sloping to moderately steep soils are on broad interfluves. Slopes range from 1 to 20 percent but are dominantly 1 to 5 percent. Mean annual precipitation is about 1118 mm (44 in) and mean annual air temperature is about 19 degrees C (66 degrees F).

TAXONOMIC CLASS: Loamy, siliceous, semiactive, thermic Arenic Paleudults

TYPICAL PEDON: Briley loamy fine sandy, smooth convex, 3 percent slope in woodland. (Colors are for moist soil unless otherwise noted.)

A--0 to 13 cm (0 to 5 in); brown (10YR 4/3) loamy fine sand; weak fine granular structure; soft, very friable; many fine, medium and coarse roots; moderately acid; clear wavy boundary. (Thickness of the A horizon is 10 to 36 cm [4 to 14 in])

E1--13 to 43 cm (5 to 17 in); brown (10YR 5/3) loamy fine sand; single grain; soft, very friable; common fine, medium and coarse roots; moderately acid; clear smooth boundary.

E2--43 to 58 cm (17 to 23 in); pale brown (10YR 6/3) loamy fine sand; singled grain; soft, very friable; common medium and coarse roots; strongly acid; gradual wavy boundary. (Combined thickness of the E horizon is E horizons is 41 to 66 cm [16 to 26 in])

Bt1--58 to 109 cm (23 to 43 in); yellowish red (5YR 4/6) sandy clay loam; medium fine subangular blocky structure; slightly hard, friable; few fine and medium roots; few clay films on faces of peds; very strongly acid; gradual wavy boundary. (Combined thickness of the Bt horizons is 51 to 152 cm [20 to 60 in])

Bt2--109 to 203 cm (43 to 80 in); yellowish red (5YR 5/8) sandy clay loam; weak subangular blocky structure; slightly hard, friable; few fine and medium roots; few clay films on faces of peds; common medium distinct strong brown (7.5YR 5/6) and red (2.5YR 4/6) masses of oxidized iron; very strongly acid.

TYPE LOCATION: Nacogdoches County, Texas; about 15 miles northeast of Nacogdoches on U.S. Highway 259 to the intersection of Farm Road 1087, 7.6 miles east on Farm Road 1087 to Mt. Union Church, 0.3 mile south on dirt road to Walnut Grove Church, 50 feet east in woods. Garrison West USGS quad; Latitude: 8 degrees, 47 minutes, 56 seconds N; Longitude: 96 degrees, 18 minutes, 57 seconds W, NAD 83. UTM Easting 351834 m, UTM Northing 3523063 m, Zone 15

RANGE IN CHARACTERISTICS:

Soil Moisture: An udic soil moisture regime. The soil is dry in the moisture control section for 75 to 90 cumulative days in most years.

Mean annual soil temperature: 19 to 21 degrees C (67 to 70 degrees F)
Depth to argillic horizon: 50 to 102 cm (20 to 40 in)
Thickness of solum: greater than 203 cm (greater than 80 in)

Particle-size control section (weighted average)
Clay content: 18 to 28 percent
Silt plus very fine sandy content: 25 to 40 percent
CEC/clay ratio: 0.24 to 0.40

A horizon
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 2 to 4
Texture: loamy fine sand
Rock fragments: 0 to 10 percent ironstone gravel
Reaction: very strongly acid to slightly acid

E horizon
Hue: 7.5YR or 10YR
Value 5 to 8
Chroma: 2 to 4
Texture: loamy fine sand
Redox concentrations: amount-0 to 12 percent; size-fine to medium; contrast-faint to distinct; boundary-clear to sharp; location-throughout; shades-yellow
Rock fragments: amount-0 to 10 percent; kind- ironstone gravel
Reaction: very strongly acid to slightly acid

BE horizon, where present (less than 18 cm [7 in] thick)
Hue: 5YR or 7.5YR
Value: 4 or 5
Chroma: 4 to 8
Texture: loamy fine sand or fine sandy loam
Redox concentrations: amount-0 to 12 percent; size-fine to medium; contrast-faint to distinct; boundary-clear to sharp; location-throughout; shades-yellow
Rock fragments: 0 to 10 percent ironstone gravel
Reaction: very strongly acid to moderately acid

Bt horizon
Hue: 2.5YR or 5YR (some pedons range to 7.5YR in the lower part)
Value: 4 or 5
Chroma: 6 or 8
Some pedons have variegated matrixes in shades similar to above colors
Texture: fine sandy loam, loam, or sandy clay loam;
Redox concentrations: 0 to <20 percent; size-fine to medium; contrast-distinct; boundary-clear to sharp; location-throughout; shades- red, brown, or yellow in the upper part
Rock fragments: 0 to 10 percent ironstone gravel
Plinthite: 0 to 4 percent in the lower part with or without streaks or pockets of uncoated sand.
Reaction: very strongly acid to moderately acid

COMPETING SERIES: These are the Letney (TX) and Trep (TX) series in the same family and the closely similar are Boykin (TX), Larue (TX), Lilbert (TX), Rosalie (TX), and Tenaha (TX) series.
Letney soils have Bt1 horizons with hue yellower than 5YR
Trep soils have Bt1 horizons with hue yellower than 5YR and have more clay in the lower layers
Boykin soils formed in Pleistocene Age sediments and are assumed to have different chemistry and kinds of clays
Larue soils have base saturation of more than 35 percent
Lilbert soils have Bt1 horizons with hue yellower than 5YR and have 5 percent or more plinthite
Rosalie soils have Bt1 horizons with hue yellower than 5YR and have uncoated sand in the upper Bt horizon
Tenaha soils have sola less than 152 cm (60 in) thick over sandstone

GEOGRAPHIC SETTING:
Parent material: sandy and loamy Coastal Plain marine deposits of Tertiary age on the Sparta, Queen City, and Carrizo Sands Landscape: Coastal Plains
Landform: interfluves Slope: 1 to 20 percent
Mean annual air temperature range: 17 to 21 degrees C (62 to 69 degrees F)
Mean annual precipitation range: 1016 to 1524 mm (40 to 60 inches)
Precipitation pattern: Rainfall is generally uniform throughout the year
Frost free period: 235 to 275 days
Elevation: 46 to 183 m (151 to 600 feet)
Thornthwaite P-E indices: exceed 64

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bowie (TX), Darco (TX), Lilbert (TX), Ruston (TX), Tenaha (TX)and Tonkawa (TX) series. Bowie soils: have loamy surface layers less than 51 cm (20 in) thick and are on lower positions. Darco soils: have sandy surface layers more than 102 cm (40 in) thick and are on similar positions. Lilbert soils: are also on similar positions. Ruston soils: have loamy surface layers less than 51 cm (20 in) thick and are on similar positions. Tenaha soils: are typically on lower positions. Tonkawa soils: have sandy surface layers more than 102 cm (40 in) thick and are on similar positions.

DRAINAGE AND PERMEABILITY: Well drained. Permeability is moderate. Runoff is negligible on 1 to 3 percent slopes, very low on 3 to 5 percent slopes, and low on 5 to 20 percent slopes.

USE AND VEGETATION: The major use is for woodlands and livestock grazing. The plant community in the woodland is loblolly and shortleaf pine and improved bermudagrass for livestock grazing.

DISTRIBUTION AND EXTENT: Western Coastal Plains of Arkansas, western and north central Louisiana, eastern Texas, and possibly Oklahoma; LRR P; MLRA 133B. The series is of large extent.

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

SERIES ESTABLISHED: Hempstead County, Arkansas, 1976.

REMARKS: These soils were formerly included in the Ruston or Lucy series.
This OSD was updated by changing to a tabular format. 11/2013

Diagnostic horizons and features recognized in this pedon are:

Ochric epipedon: 0 to 58 cm (0 to 23 in) (A, E1, E2 horizons)

Argillic horizon: 58 to 203 cm (23 to 80 in) (Bt1, Bt2 horizons)

Base saturation: at a depth of 183 cm (72 in) is 15 to 35 percent (Bt2 horizon)
TAXONOMIC VERSION: Keys to Soil Taxonomy, Twelfth Edition, 2014

National Cooperative Soil Survey
U.S.A.