LOCATION COLMESNEIL TXEstablished Series
TAXONOMIC CLASS: Sandy, siliceous, thermic Lamellic Paleudults
TYPICAL PEDON: Colmesneil loamy sand in woodland at an elevation of about 73 m (240 ft). (Colors are for moist soil unless otherwise stated.)
Ap--0 to 18 cm (0 to 7 in); brown (10YR 4/3), loamy sand; weak medium subangular blocky structure; very friable, loose; many fine and medium roots and many coarse roots; strongly acid; gradual smooth boundary. (10 to 30 cm (4 to 12 in) thick)
E--18 to 33 cm (7 to 13 in); yellowish brown (10YR 5/4), loamy sand; moderate coarse subangular blocky parting to weak medium subangular blocky structure; very friable, loose; many fine and medium roots; moderately acid; gradual wavy boundary. (15 to 64 cm (6 to 25 in) thick)
Bw--33 to 74 cm (13 to 29 in); brown (7.5YR 5/4), loamy sand; moderate coarse subangular blocky parting to weak medium subangular blocky structure; very friable, loose; many fine and medium roots; slightly acid; gradual wavy boundary. (0 to 41 cm (0 to 16 in) thick)
E/Bt1--74 to 119 cm (29 to 47 in); 70 percent light yellowish brown (10YR 6/4) and 25 percent reddish yellow (7.5YR 6/6) and 5 percent yellowish red (5YR 5/8), loamy sand; weak coarse prismatic parting to weak coarse subangular blocky structure; very friable, soft; many fine and medium roots and many coarse roots; slightly acid; 7.5YR 6/6 material above is (B) material in the form of spots and lamellae 1 to 1.5 centimeters thick, (five observed in sampled area); gradual wavy boundary.
E/Bt2--119 to 168 cm (47 to 66 in); 60 percent light yellowish brown (10YR 6/4) and 35 percent yellowish red (5YR 5/8), loamy sand; weak coarse prismatic parting to weak coarse subangular blocky structure; very friable, soft; many fine and medium roots and many coarse roots; 5 percent medium prominent masses of oxidized iron; slightly acid; 5YR 5/8 above is (B) material in the form of lamellae, 1 to 2 centimeters thick (six observed in sampled area), and spots of similar width; gradual wavy boundary; common clay bridging between sand grains within lamellae. (combined E/Bt horizons 51 to 135 cm (20 to 53 in) thick)
Bt/E--168 to 203 cm (66 to 80 in); yellowish red (5YR 5/8) loamy sand; weak coarse prismatic parting to weak coarse subangular blocky structure; very friable, soft; many fine and medium roots; common clay bridging between sand grains within B material; moderately acid; the E portion is light yellowish brown (10YR 6/4) loamy sand. (0 to 91 cm (0 to 36 in) thick)
TYPE LOCATION: Tyler County, Texas; from U.S. 69 in Woodville, 15.1 miles northwest on U.S. 287 to the town of Chester; 3.8 miles north on FM 2097 to end of pavement; 0.3 mile north on unpaved-road continuation; left (northwest) at "Y" 2 miles; 1.45 mile north on adjoining woods road; 1.3 mile northeast and east on adjoining woods road; 0.6 mile northwest on woods road to hunter camp area; 0.25 mile northeast to edge of clear cut area. Wolf Hill, Texas USGS 7.5 Minute Quadrangle; Latitude, 31 degrees, 1 minute, 2.80 seconds N.; Longitude, 94 degrees, 36 minutes, 50.50 seconds W. NAD 83.
RANGE IN CHARACTERISTICS:
An udic soil moisture regime. The soil is dry in some part of the moisture control section for 60 to 75 cumulative days in most years.
Mean annual soil temperature: 19.4 to 21.7 degrees C. (67 to 71 degrees F)
Solum thickness is more than 200 cm (80 inches)
Depth to argillic horizon: 33 to 74 cm (13 to 29 in)
Particle-size control section (weighted average)
Clay content: 4 to 12 percent
Base saturation: 15 to 34 percent
A horizon
Hue: 10YR 4/3, 5/3), brown (10YR 4/2), Value: 4 or 5
Chroma: 2 to 4 Texture: sand or loamy sand.
Clay content: 2 to 8 percent
Base Saturation: 10 to 25 percent
Reaction: extremely acid to strongly acid
E horizon
Hue: 10YR
Value: 5 to 7
Chroma: 3 or 4
Texture: sand or loamy sand.
Clay content: 2 to 8 percent
Base Saturation: 10 to 25 percent
Reaction: extremely acid to strongly acid
Bw horizon (where present)
Hue:5YR or 7.5YR
Value: 4 or 5 with hue of 5YR; 5 or 6 with hue of 7.5YR
Chroma: 4 to 8
Pockets of uncoated sand grains: none to few.
Clay content: 2 to 8 percent
Base Saturation: 40 to 60 percent
Reaction: extremely acid to strongly acid
E/Bt horizon
E portion
Hue: 10YR
Value: 5 to 7
Chroma: 3 or 4 Texture: sand or loamy sand
Bt portion (lamellae or pockets)
Hue: 5YR or 7.5YR
Value: 4 or 5 with hue of 5YR; 5 or 6 with hue of 7.5YR
Chroma: 4 to 8 with hue of 5YR; 6 or 8 with hue of 7.5YR
Clay content: 4 to 12 percent
Lamella thickness: more than 15 cm (6 in) composite thickness within a depth of 80 inches.
Base Saturation: 15 to 34 percent
Reaction: extremely acid to strongly acid
Bt/E horizon
Bt portion
Hue: 5YR or 7.5YR
Value: 4 or 5 with hue of 5YR; 5 with hue of 7.5YR
Chroma: 4 to 8 with hue of 5YR; 6 or 8 with hue of 7.5YR
E portion
Hue: 10YR
Value: 5 to 7
Chroma 3 or 4
Texture: loamy sand or sandy loam
Clay content: 4 to 12 percent
Base Saturation: 15 to 34 percent
Reaction: extremely acid to strongly acid
COMPETING SERIES: The
Betis series is in the same family. The
Bienville,
Hainesville,
Shankler,
Doucette,
Boykin,
Hillister,
Darco,
Eustis,
Flo,
Chamblissand
Grapeland series are in closely related families.
Betis soils: have texture of fine sand or loamy fine sand throughout and formed on older geology.
Eustis soils: lack significant lamellae.
Chambliss and Grapeland soils: have a Bt horizon with hue of 5YR or redder, without an E portion.
Valdosta soils: are restricted to the Hawthorn geologic formation.
Bienville and Flo soils: have more than 35 percent base saturation.
Bienville soils: are in terrace positions and have a seasonal water table at a depth of 40 to 60 inches.
Hainesville soils: do not have an argillic horizon and are on terraces. Shankler, Doucette, Boykin, Hillister and Darco soils: have a loamy control section.
GEOGRAPHIC SETTING:
Parent material: Thick sandy marine sediments of the Willis and Whitsett Geologic Formation.
Landscape: Coastal Plain
Landform: nearly level to moderatley sloping convex slopes on broad interfluves
Slope: 0 to 8 percent
Mean annual air temperature: 19 to 22 degrees C (66 to 72 degrees F)
Mean annual precipitation: 1168 to 1473 mm (46 to 58 in)
Precipitation pattern: Summer moisture deficit averages 0 to 4 inches.?
Frost-free period: 246 to 333 days
Elevation: 60 to 100 m (200 to 325 ft)
Thornthwaite annual P-E indices: exceeds 72
GEOGRAPHICALLY ASSOCIATED SOILS: These are the closely related
Letney,
Tehran,
Doucette,
Boykin,
Choates,
Shankler,
Newco,
Chambliss, and
Hillister series.
Chambliss soils: on similar positions
Letney, Tehran, Doucette, Boykin, and Shankler soils: on similar landscape positions and have a loamy argillic horizon
Choates soils:on toe slope positions, and have a seasonal water table at 1.5 to 2.5 feet.
Hillister soils: on side slopes andhave a loamy argillic horizon.
Newco soils: on side slopes and have a clayey argillic horizon.
DRAINAGE AND PERMEABILITY: Colmesneil soils are somewhat excessively drained and rapidly permeable. Runoff on 1-3 percent slopes is negligible, 3-5 percent is very low, and 5-8 percent is low.
USE AND VEGETATION: Used mainly for and for woodland and for improved pastures. The principal trees are loblolly pine, shortleaf pine, and longleaf pine.
DISTRIBUTION AND EXTENT: Eastern Texas; LLR P; MLRA 133B; moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Tyler County, Texas; 2007. The name comes from the community of Colmesneil, TX located in Tyler County.
REMARKS: Establishing new series.
Diagnostic Horizons:
Ochric epipedon: The zone from 0 to 74 cm (0 to 29 in)
Argillic horizon: The zone from 74 to 203 cm (29 to 80 in)