LOCATION HEATLY                  TX+OK

Established Series
Rev. CRC-RFG--CLN
11/2015

HEATLY SERIES

The Heatly series consists of very deep, well drained, moderately permeable soils that formed in eolian sands over loamy eolian deposits and/or alluvium of Pleistocene age. These nearly level to gently sloping soils occur on sand sheets on stream terraces of dissected plains. Slope ranges from 0 to 5 percent. Mean annual precipitation is about 610 mm (24 in) and the mean annual air temperature is about 16.7 degrees C (62 degrees F).

TAXONOMIC CLASS: Loamy, mixed, active, thermic Arenic Paleustalfs

TYPICAL PEDON: Heatly fine sand, in rangeland.
(Colors are for dry soil unless otherwise noted.)

Ap--0 to 71 cm (0 to 28 in); light brown (7.5YR 6/4) fine sand, brown (7.5YR 5/4) moist; single grain; loose; slightly acid; abrupt smooth boundary. Thickness is 51 to 102 cm (20 to 40 in)

AB--71 to 86 cm (28 to 34 in); reddish brown (5YR 5/4) sandy loam, reddish brown (5YR 4/4) moist; weak coarse subangular blocky structure; hard, friable; neutral; gradual smooth boundary. Thickness is 0 to 30 cm (0 to 12 in)

Bt1--86 to 132 cm (34 to 52 in); red (2.5YR 5/6) sandy clay loam, red (2.5YR 4/6) moist; moderate coarse subangular blocky structure; very hard, friable; few distinct clay films on vertical ped surfaces; neutral; diffuse smooth boundary.

Bt2--132 to 163 cm (52 to 64 in); red (2.5YR 5/6) sandy clay loam, red (2.5YR 4/6) moist; weak coarse subangular blocky structure; hard, friable; few distinct clay films on vertical ped surfaces; neutral; diffuse smooth boundary.

Bt3--163 to 188 cm (64 to 74 in); reddish brown (5YR 5/4) sandy clay loam, reddish brown (5YR 4/4) moist; weak coarse subangular blocky structure; hard, friable; few distinct clay films on vertical ped surfaces; neutral; gradual smooth boundary. Combined thickness is 46 to 165 cm (18 to 65 in)

Bt4--188 to 203 cm (74 to 80 in); yellowish red (5YR 5/6) sandy clay loam, yellowish red (5YR 4/6) moist; moderate coarse subangular blocky structure; very hard, firm; few distinct clay films on vertical ped surfaces; neutral.

TYPE LOCATION: Cottle County, Texas; 7.1 miles north of courthouse in Paducah on U.S. Highway 83 and 62, 0.45 mile west on Farm Road 3256, 790 feet north in rangeland.
USGS topographic quad: Paducah, Texas;
Latitude: 34 degrees, 7 minutes, 14 seconds N;
Longitude: 100 degrees, 18 minutes, 23 seconds W;
Datum: WGS84.
UTM Easting 379528.51 m, UTM Northing 3776277.58 m, UTM Zone 14.

RANGE IN CHARACTERISTICS:
Soil Moisture: Typic-Ustic soil moisture regime
Solum thickness: more than 203 cm (80 in)
Thickness of the sandy surface layer: 51 to 102 cm (20 to 40 in)
Depth to argillic horizon: 51 to 102 cm (20 to 40 in)
Coarse fragments: 0 to 1 percent throughout the solum

Particle-size control section (weighted average)
Clay content: 18 to 35 percent
Sand content: 50 to 80 percent

A horizon
Hue: 5YR to 10YR
Value: 5 or 6
Chroma: 3 to 6
Texture: fine sand, sand
Clay content: 3 to 10 percent
Reaction (pH): slightly acid to neutral (6.1 to 7.3)

AB horizon (where present)
Hue: 5YR to 7.5YR
Value: 4 or 5
Chroma: 4
Texture: sandy loam, fine sandy loam
Clay content: 10 to 20 percent
Reaction (pH): slightly acid to neutral (6.1 to 7.3)

Upper Bt horizon(s)
Hue: 2.5YR to 7.5YR
Value: 4 to 6
Chroma: 4 to 8
Texture: sandy clay loam
Clay content: 20 to 35 percent; clay content decreases by less than 20 percent(relative) from the maximum within 152 cm (60 in) of the surface
Reaction (pH): slightly acid to slightly alkaline (6.1 to 7.8)

Lower Bt horizon(s)
Hue: 2.5YR to 7.5YR
Value: 4 to 6
Chroma: 4 to 8
Texture: sandy clay loam, sandy loam, fine sandy loam
Clay content: 15 to 30 percent
Reaction (pH): slightly acid to moderately alkaline (6.1 to 8.4)

BC or C horizon (where present)
Hue: 5YR to 7.5YR
Value: 4 to 6
Chroma: 4 to 8
Texture: sandy loam, fine sandy loam, loamy fine sand, loamy sand
Clay content: 5 to 20 percent
Reaction (pH): neutral to moderately alkaline (6.6 to 8.4)

COMPETING SERIES: There are no competing series in the same family. Similar soils are the Anson, Brownfield, Delwin, Devol, Grandfield, Heaton, Loneoak, Miles, Nobscot, and Springer series.
Anson soils: have siliceous mineralogy and redoximorphic features within 102 cm (40 in) on the surface
Brownfield soils: are dry in the moisture control section for longer periods
Delwin, Devol Grandfield, Miles, and Springer soils: have sandy surface layers less than 51 cm (20 in) thick
Heaton soils: have siliceous mineralogy and occur in a warmer moister climate
Loneoak soils: have more than 35 percent clay in the particle-size control section and formed over Cambrian age sandstone
Nobscot soils: have less than 18 percent clay in the particle-size control section

GEOGRAPHIC SETTING:
Parent material: eolian sands over loamy eolian deposits and/or alluvium of Pleistocene age
Landscape: dissected plains
Landform: sand sheet on stream terraces
Slope: 0 to 5 percent, but mostly less than 3 percent
Mean annual precipitation: 508 to 660 mm (20 to 26 in)
Precipitation pattern: These soils are intermittently moist in September through November and March through June; July through August and December through February are the driest months.
Thornthwaite P-E index: 31 to 40
Mean annual air temperature: 15.0 to 18.3 degrees C (59 to 65 degrees F)
Frost-free period: 180 to 230
Elevation: 426.7 to 883.9 m (1,400 to 2,900 ft)

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Delwin, Devol, Grandfield, Miles, Nobscot, Springer, and Tivoli soils.
Devol, Nobscot, and Springer soils: occur on similar to slightly higher positions
Delwin, Grandfield, and Miles soils: occur on lower positions
Tivoli soils: occur on higher dunes and have sandy textures throughout

DRAINAGE AND PERMEABILITY: Well drained; Permeability is rapid in the surface and moderate in the subsoil. Runoff is negligible on slopes less than 1 percent and low on 1 to 5 percent slopes.

USE AND VEGETATION: Mainly used for rangeland. Grasses are tall and midgrasses, mainly bluestem and giant dropseed; woody plants are Havard Oak and some widely separated yucca and sandsage. Some areas are cropped to cotton, grain sorghum, and peanuts.

DISTRIBUTION AND EXTENT: Land Resource Region - H; MLRA - 78B and 78C (Central Rolling Red Plains, Western and Eastern Parts). The series is of moderate extent.

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

SERIES ESTABLISHED: Cottle County, Texas; 1970.

REMARKS: These soils were formerly included in the Brownfield series.

Edited 11/2015 (RFG-CJV): Changed to tabular format. Added metric measurements. Updated competing series, geographic setting, and associated soils sections.

Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: 25 to 100 cm (10 to 40 in). (A, AB, and Bt1 horizons)Ochric epipedon: 0 to 71 cm (0 to 28 in). (Ap horizon)
Argillic horizon: 86 to 203 cm (34 to 80 in). (Bt horizons)
Arenic features: thickness of fine sand surface layer is 71 cm (28 in).
Paleustalfs feature: clay content of the Bt horizons decrease less than 20 percent (relative) within 152 cm (60 in) and the chroma is 5 or more in lower one-half of the argillic horizon.

ADDITIONAL DATA: none

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

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National Cooperative Soil Survey
U.S.A.