LOCATION GRANBURY TX

Tentative Series
Rev. CMR-LAD
09/2020

GRANBURY SERIES

The Granbury series consists of moderately deep, moderately well drained, moderately slowly permeable soils that formed in loamy and clayey slope alluvium derived from sandstone and siltstone of Cretaceous age. These gently sloping soils occur on crests of low ridges on hills. Slopes range from 1 to 5 percent. Mean annual precipitation is about 801 mm (31.5 in) and the mean annual temperature is about 17.6 degrees C (64 degrees F).

TAXONOMIC CLASS: Fine, mixed, active, thermic Udic Paleustalfs

TYPICAL PEDON: Granbury very fine sandy loam, on a north-facing, 1 percent slope in pasture at an elevation of 281 m (922 ft). (Colors are for dry soil unless otherwise stated.)

Ap--0 to 17 cm, (0.0 to 6.7 inches); brown (7.5YR 5/4) very fine sandy loam, brown (7.5YR 4/4), moist; moderate medium subangular blocky structure; soft, very friable, nonsticky, nonplastic; few very fine roots throughout and few medium roots throughout and common fine roots throughout; moderately acid, pH 6.0 by pH indicator solutions; clear smooth boundary. Lab sample # 19N00063

Bt1--17 to 30 cm, (6.7 to 11.8 inches); red (2.5YR 5/6) sandy clay loam, red (2.5YR 4/6), moist; moderate medium prismatic parts to moderate medium subangular blocky structure; hard, firm, moderately sticky, moderately plastic; common very fine roots throughout and few medium roots between peds and common fine roots between peds; 80 percent prominent reddish brown (5YR 4/3), dry, and dark reddish brown (5YR 3/3), moist, clay films on all faces of peds; 1 percent fine prominent spherical moderately cemented black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries in matrix; neutral, pH 7.0 by pH indicator solutions; clear smooth boundary. Lab sample # 19N00064

Bt2--30 to 43 cm, (11.8 to 16.9 inches); reddish brown (5YR 4/4) clay, dark reddish brown (5YR 3/4), moist; strong medium prismatic parts to moderate medium angular blocky structure; hard, very firm, moderately sticky, moderately plastic; common very fine roots throughout and few medium roots between peds and few fine roots between peds; 10 percent prominent pressure faces on top faces of peds and 100 percent prominent reddish brown (5YR 4/3), dry, and dark reddish brown (5YR 3/3), moist, clay films on all faces of peds; 1 percent fine prominent spherical moderately cemented black (10YR 2/1), moist, iron-manganese concretions with sharp boundaries in matrix and 2 percent fine prominent irregular brownish yellow (10YR 6/6), dry, and yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; neutral, pH 7.0 by pH indicator solutions; clear wavy boundary. Lab sample # 19N00065

Bt3--43 to 59 cm, (16.9 to 23.2 inches); dark yellowish brown (10YR 4/4) clay, dark yellowish brown (10YR 3/4), moist; strong medium prismatic parts to moderate medium angular blocky parts to moderate fine angular blocky structure; hard, firm, moderately sticky, moderately plastic; common very fine roots throughout and few fine roots between peds; 60 percent prominent brown (7.5YR 4/3), dry, and dark brown (7.5YR 3/3), moist, clay films on all faces of peds; 1 percent fine prominent spherical moderately cemented iron-manganese concretions with sharp boundaries in matrix and 10 percent fine prominent irregular yellowish red (5YR 4/6), moist, and yellowish red (5YR 5/6), dry, masses of oxidized iron with clear boundaries in matrix; moderately alkaline, pH 8.0 by pH indicator solutions; very abrupt wavy boundary. Lab sample # 19N00066

2R--59 to 84 cm, (23.2 to 33.1 inches); white (N 8/), Indurated limestone bedrock, white (N 8/), moist; structureless massive; indurated; violent effervescence, by HCl, 1 normal; moderately alkaline, pH 8.0 by pH indicator solutions.

TYPE LOCATION: Hood County, Texas; from the Hwy 67 and FM 56 intersection in Glen Rose, Texas, north 8.0 miles on FM 56 to Harkins Court, 1.2 miles east on Harkins Court, 0.5 miles south on County Road 226, 1,120 ft west in pasture.

USGS topographic quadrangle: Hill City, Texas
Latitude: 32 degrees, 18 minutes, 39.79 seconds N
Longitude: 97 degrees, 49 minutes, 55.99 seconds W
Datum: WGS84

Decimal Degrees:
Latitude: 32.3110533
Longitude: -97.8322183

UTM Easting: 609932.50 m
UTM Northing: 3575513.33 m
UTM Zone: 14N

RANGE IN CHARACTERISTICS:
Soil Moisture: An ustic soil moisture regime. The soil moisture control section is dry in some or all parts for more than 90, but less than 120 days in normal years.
Thickness of the solum: 50 to 100 cm (20 to 40 in)
Depth to argillic horizon: 5 to 48 cm (2 to 19 in)

Particle-size control section (weighted average):
Clay content: 35 to 45 percent
Base saturation: 75 to 100 percent

A horizon:
Hue: 7.5YR to 10YR
Value: 3 to 6
Chroma: 2 to 6
Texture: very fine sandy loam or fine sandy loam
Rock fragments: 0 to 2 percent by volume; limestone or ironstone gravel
Reaction (pH): very strongly acid to neutral (4.5 - 7.3)

Bt horizons:
Hue: 2.5YR to 7.5YR
Value: 3 to 6
Chroma: 3 to 8
Texture: clay, sandy clay, or clay loam
Clay content: 32 to 50 percent
Rock fragments: 0 to 2 percent by volume; limestone or ironstone gravel
Reaction (pH): neutral to slightly alkaline (6.6 - 7.8)

R layer:
Kind: Limestone bedrock
Cementation: Strongly cemented to indurated

COMPETING SERIES:
These are the Callisburg, Chigley, Cona, Edge, Minwells, Shiro, Truce, and Windthorst series in the same family.
Callisburg, Chigley, Edge, Minwells, Truce, and Windthorst soils: have sola more than 100cm (40 in)
Cona soils: are over shale
Shiro soils: are over sandstone

GEOGRAPHIC SETTING:
Parent material: loamy and clayey slope alluvium derived from sandstone and siltstone of Cretaceous age
Landscape: hills
Landform: base slopes of ridges and strath terraces
Slope: 1 to 5 percent
Mean annual precipitation: 693 to 941 mm (27 to 37 in)
Mean annual air temperature: 17.1 to 18.3 degrees C (63 to 65 degrees F)
Frost-free period: 210 to 240 days
Elevation: 182 to 641 m (597 to 2103 ft)

GEOGRAPHICALLY ASSOCIATED SOILS:
These are the Windthorst, Chaney, Pedernales, Tarrant, Purves, and Sunev series.
Windthorst soils: more than 100 cm (40 in) to densic bedrock and occur higher in the landscape
Chaney soils: more than 100 cm (40 in) to densic bedrock and occur in similar landscape positions
Pedernales soils: more than 150 cm (60 in) to densic bedrock and occur in similar landscape positions
Sunev soils: more than 150 cm (60 in) solum with a loamy mollic epipedon and fine-loamy subsoil and occurs in similar landscape positions
Purves and Tarrant soils: less than 50 cm (20 in) to limestone bedrock and occur higher in the landscape

DRAINAGE AND PERMEABILITY:
Drainage class: moderately well
Permeability class: moderately slow
Runoff: medium on 1 to 5 percent slopes

USE AND VEGETATION:
The major uses are livestock grazing and hay production, but some areas are cultivated; sorghums and small grains are the main crops. The native plant community is post oak and blackjack oak trees with an understory of little bluestem, indiangrass, greenbrier, and annual grasses.

DISTRIBUTION AND EXTENT:
General location: north-central Texas
Land Resource Region: J-Southwestern Prairies Cotton and Forage Region
Major Land Resource Area: 84B-West Cross Timbers
Extent: small

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Temple, Texas

SERIES PROPOSED: Hood County, Texas; 2020. The name "Granbury" comes from the city of Granbury in Hood County, Texas.

REMARKS:
The series was formerly included in the Lindy series. The series was separated based on the presence of an abrupt textural change and surface texture.

Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: 17 to 59 cm (7 to 23 in) (Bt1, Bt2, and Bt3 horizons)
Ochric epipedon: 0 to 17 cm (0 to 7 in) (Ap horizon)
Abrupt textural change: 17 cm (7 in)
Argillic horizon: 17 to 59 cm (7 to 23 in) (Bt1, Bt2, and Bt3 horizons)
Redox concentrations: 17 to 59 (7 to 23 in) (Bt1, Bt2, and Bt3 horizons)
Lithic contact: 59 cm (23 in) (top of 2R layer)
Lithologic discontinuity: 59 cm (23 in) (2R layer)

ADDITIONAL DATA: Typical pedon NASIS Pedon ID S2018TX221001

TAXONOMIC VERSION: Keys to Soil Taxonomy, Twelfth Edition, 2014

National Cooperative Soil Survey
U.S.A.