LOCATION LEERAY TX

Established Series
Rev. BJW-GLL-SCP
01/2017

LEERAY SERIES

The Leeray series consists of very deep, well drained, very slowly permeable soils that formed in calcareous, clayey slope alluvium. These nearly level to gently sloping soils occurs on toeslopes on ridges of hills. Slope ranges from 0 to 5 percent. Mean annual precipitation is about 762 mm (30 in) and the mean annual temperature is about 18.3 degrees C (65 degrees F).

TAXONOMIC CLASS: Fine, smectitic, thermic Calcic Haplusterts

TYPICAL PEDON: Leeray clay--rangeland; On a 1.5 percent slope between microlow and microhigh at an elevation of 446.6 m (1465 ft).
(Colors are for dry soil unless otherwise stated.)

A1--0 to 11 cm (0 to 4 in); dark grayish brown (10YR 4/2) clay, very dark grayish brown (10YR 3/2) moist; moderate fine subangular blocky structure parting to moderate very fine subangular blocky structure parting to moderate fine granular; very hard, firm, sticky and plastic; many very fine and fine roots throughout; few fine and medium irregular calcium carbonate nodules; 1 percent rounded siliceous gravel; strongly effervescent; neutral; clear smooth boundary.

A2--11 to 28 cm (4 to 11 in); dark grayish brown (10YR 4/2) clay, very dark grayish brown (10YR 3/2) moist; weak coarse prismatic structure parting to moderate medium and coarse angular blocky; very hard, very firm, very sticky and very plastic; common very fine and fine roots throughout; few very fine continuous tubular pores; few fine and medium irregular calcium carbonate nodules; 1 percent rounded siliceous gravel; strongly effervescent; moderately alkaline; clear smooth boundary. Combined thickness of the A horizons is 13 to 71 cm (5 to 28 in)

Bss1--28 to 42 (11 to 17 in); dark grayish brown (10YR 4/2) clay, very dark grayish brown (10YR 3/2) moist; moderate coarse angular blocky structure parting to moderate medium angular blocky; very hard, very firm, very sticky and very plastic; few very fine roots throughout; few very fine continuous pores; prominent continuous very dark grayish brown (10YR 3/2) slickensides; few very dark gray (10YR 3/1) stains on slickenside surfaces; common fine and medium irregular calcium carbonate nodules; 1 percent rounded siliceous gravel; strongly effervescent; moderately alkaline; clear smooth boundary.

Bss2--42 to 81 (17 to 32 in); grayish brown (10YR 5/2) clay, dark grayish brown (10YR 4/2) moist; moderate coarse prismatic structure parting to moderate medium and coarse angular blocky; very hard, very firm, very sticky and very plastic; few fine roots throughout; few very fine continuous pores; prominent continuous very dark grayish brown (10YR 3/2) slickensides; common very dark gray (10YR 3/1) iron-manganese stains on slickenside faces; few fine rounded iron-manganese concretions and common fine and medium irregular calcium carbonate nodules; 1 percent rounded siliceous gravel; strongly effervescent; moderately alkaline; gradual smooth boundary. Combined thickness of the Bss horizons is 0 to 68 cm (0 to 27 in)

Bkss1--81 to 110 cm (32 to 43 in); brown (10YR 5/3) clay, brown (10YR 4/3) moist; weak coarse prismatic structure parting to moderate medium and coarse angular blocky; very hard, very firm, very sticky and very plastic; few fine roots throughout; few very fine low continuity pores; prominent brown (10YR 4/3) slickensides; few very dark gray (10YR 3/1) iron-manganese coatings on slickenside surfaces; common fine and medium irregular calcium carbonate nodules and few medium and coarse irregular masses of calcium carbonate; few fine rounded iron-manganese concretions; 1 percent rounded siliceous gravel; strongly effervescent; moderately alkaline; gradual smooth boundary.

Bkss2--110 to 140 cm (43 to 55 in); brown (10YR 5/3) silty clay, brown (10YR 4/3) moist; moderate coarse angular blocky structure parting to moderate medium angular blocky; very hard, very firm, very sticky and very plastic; few fine roots throughout; few very fine continuous pores; prominent continuous brown (10YR 4/3) slickensides; common medium and coarse irregular masses of calcium carbonate and common fine and medium irregular carbonate nodules; few fine rounded iron-manganese concretions; 1 percent rounded siliceous gravel; strongly effervescent; moderately alkaline; clear smooth boundary. Combined thickness of Bkss horizons is 25 to 91 cm (10 to 36 in)

Bk1--140 to 158 cm (55 to 62 in); brown (7.5YR 5/4) silty clay, brown (7.5YR 4/4) moist; moderate coarse angular blocky structure parting to moderate medium angular blocky; very hard, very firm, very sticky and very plastic; few fine roots throughout; few very fine continuous pores; few iron-manganese coatings; common medium and coarse irregular masses of calcium carbonate and few thin fine and medium irregular carbonate nodules; 1 percent rounded siliceous gravel; strongly effervescent; moderately alkaline; gradual smooth boundary.

Bk2--158 to 189 cm (62 to 74 in); reddish yellow (7.5YR 6/6) silty clay, strong brown (7.5YR 5/6) moist; moderate coarse angular blocky structure parting to moderate medium angular blocky; very hard, very firm, very sticky and very plastic; few fine roots throughout; few very fine low continuity pores; common thin iron-manganese coatings; common medium and coarse irregular masses of calcium carbonate and few fine and medium irregular calcium carbonate nodules; few fine rounded iron-manganese concretions; strongly effervescent; 1 percent rounded siliceous gravel; moderately alkaline; gradual smooth boundary. Combined thickness of Bk horizons is 15 to 71 cm (6 to 28 in)

2BCKss--189 to 203 cm (74 to 80 in); light brown (7.5YR 6/4) silty clay, brown (7.5YR 5/4) moist; common fine and coarse distinct light yellowish brown (2.5Y 6/4) redox concentrations; moderate coarse angular blocky structure; very hard, very firm, very sticky and plastic; few fine roots throughout; few very fine continuous pores; prominent continuous brown (7.5YR 5/4) slickensides; common thin iron-manganese coatings; common medium and coarse irregular masses of calcium carbonate and few fine and medium irregular calcium carbonate nodules; few fine rounded iron-manganese concretions; strongly effervescent; moderately alkaline; abrupt smooth boundary. Thickness is 15 to 51 cm (6 to 20 in)

TYPE LOCATION: Stephens County, Texas; from the junction of U. S. Highway 180 and Farm Road 252 East of Caddo, 5.5 miles southeast on County Road 104 (Hohhertz road), 0.8 miles south on field road.
Latitude: 32 degrees, 39 minutes, 26 seconds N;
Longitude: 98 degrees, 36 minutes, 36 seconds W;
Datum: WGS 84
UTM Zone 14, 3613354N, 536572E.

RANGE IN CHARACTERISTICS:
Soil Moisture: an Ustic soil moisture regime. The soil moisture control section is dry in some or all parts for less than six-tenths of the cumulative days in normal years.
Depth to calcic horizon: 102 to 152 cm (40 to 60 in)
Depth to Slickensides: 13 to 71 cm (5 to 28 in)
Gilgai microrelief: In undisturbed areas, microhighs are 10 to 30 cm (4 to 12 in) higher than microlows. Cycles of microhighs and microlows are repeated each 2 to 7 meters (7 to 23 ft).
Cracks: when the soil is dry, 2 to 7 cm wide that extend from the surface to a depth of more than 50 cm (20 in) and remain open from 150 to 210 cumulative days during most years.
Depth to bedrock in most pedons: 203 to 255 cm (80 to 100 in) lithic contact of limestone bedrock or densic contact of claystone bedrock
Effervescence: Most pedons are calcareous throughout

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

A Horizon:
Hue: 7.5YR, 10YR
Value: 2 to 3
Chroma: 1 to 2
Texture: silty clay or clay
Clay content: 40 to 50 percent
Rock fragments: 0 to 2 percent by volume; quartz or limestone gravel
Calcium carbonate equivalent: 0 to 7 percent
Reaction (pH): neutral to moderately alkaline (6.6-8.4)

Bss horizons:
Hue: 7.5YR to 2.5Y
Value: 4 to 5
Chroma: 2 to 4
Texture: silty clay or clay
Clay content: 40 to 50 percent
Rock fragments: 0 to 2 percent by volume; quartz or limestone gravel
Calcium carbonate equivalent: 2 to 10 percent
Electrical conductivity (mmhos/cm): 0 to 1
Gypsum: 0 to 2 percent
Sodium adsorption ratio: 0 to 5
Reaction (pH): moderately alkaline (7.9-8.4)

Bssk horizons:
Hue: 7.5YR to 2.5Y
Value: 4 to 5
Chroma: 2 to 4
Texture: silty clay or clay
Clay content: 40 to 50 percent
Rock fragments: 0 to 2 percent by volume; quartz or limestone gravel
Calcium carbonate equivalent: 4 to 15 percent
Electrical conductivity (mmhos/cm): 0.5 to 3
Gypsum: 0 to 5 percent
Sodium adsorption ratio: 5 to 15
Reaction (pH): moderately alkaline (7.9-8.4)

Bk horizons:
Hue: 7.5YR to 10YR
Value: 5 to 8
Chroma: 4 to 6
Texture: silty clay loam, silty clay or clay
Clay content: 35 to 50 percent
Rock fragments: 0 to 2 percent by volume; quartz or limestone gravel
Calcium carbonate equivalent: 15 to 40 percent
Electrical conductivity (mmhos/cm): 2 to 6
Gypsum: 0 to 5 percent
Sodium adsorption ratio: 5 to 20
Reaction (pH): moderately alkaline (7.9-8.4)

2BCkss or 2BCk horizons (where present):
Hue: 7.5YR to 5Y
Value: 5 to 7
Chroma: 4 to 6
Texture: silty clay loam, silty clay or clay
Clay content: 35 to 50 percent
Rock fragments: 0 to 2 percent by volume; quartz or limestone gravel
Calcium carbonate equivalent: 5 to 40 percent
Electrical conductivity (mmhos/cm): 2 to 6
Gypsum: 0 to 5 percent
Sodium adsorption ratio: 5 to 20
Reaction (pH): moderately alkaline (7.9-8.4)

COMPETING SERIES: This is the Lazbuddie series in the same family. Similar soils include the Hollister, Indiahoma, and Roscoe series.
Lazbuddie soil: has over 50 percent carbonate in the calcic horizon and formed in lacustrine deposits of quaternary age.
Hollister soils: do not have a calcic horizon, do not exhibit gilgai microrelief in most pedons, and occur in a slightly drier climate (MLRA 78C).
Indiahoma soils: do not have a calcic horizon, are 5YR or redder in the lower part of the solum, and exhibit linear gilgai.
Roscoe soils: do not have a calcic horizon, are moderately well drained, and are not saline in the lower part of the solum.

GEOGRAPHIC SETTING:
Parent material: slope alluvium derived from claystone and siltstone interbedded with limestone of Pennsylvanian and Permian age.
Landscape: hills
Landform: toeslopes of ridges
Slope: 0 to 5 percent
Mean annual precipitation: 635 to 864 mm (25 to 34 in)
Thornthwaite P-E Index: 34 to 50
Mean annual air temperature: 16.7 to 18.9 degrees C (62 to 66 degrees F)
Frost-free period: 220 to 240 days
Elevation: 305 to 609.7 m (1000 to 2000 ft)

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Hensley, Lindy, Palopinto, Rowden, Set, and Thurber series.
Hensley and Lindy soils: have reddish, clayey argillic horizons, over limestone bedrock and are on summits or shoulders positions of ridges.
Palopinto soils: are less than 50 cm (20 in) to of limestone bedrock and are above on sideslopes and shoulders of ridges.
Rowden soils: are 50 to 100 cm (20 40 in) to limestone bedrock and are slightly higer positions.
Set soils: have fine-silty control sections and are on footslopes and backslopes of ridges.
Thurber soils: have clayey argillic horizons and are on footslopes of ridges.

DRAINAGE AND PERMEABILITY: Well drained. Permeability is very slow. Runoff is high on slopes less than 1 percent, very high on slopes greater than 1 percent slopes. Water enters to soil rapidly when it is dry and cracked, and very slowly when it is moist.

USE AND VEGETATION: Used mainly for cropland and range. Small grains, forage sorghums, and grain sorghums are the main crops. Native vegetation is mostly sideoats grama, vine-mesquite, Texas wintergrass, Arizona cottontop, buffalograss, mesquite, pricklypear, and condalia.

DISTRIBUTION AND EXTENT: North-central Texas; LRR H - Central Great Plains Winter Wheat and Range Region, MLRA 80B - Texas north-central prairies and MLRA 78A - Rolling Limestone Prairie; The series is of large extent.

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

SERIES ESTABLISHED: Eastland County, Texas; 1972.

REMARKS:
Edited 01/2017 (RFG & SCP): Classification change from Typic Haplusterts to Calcic Haplusterts based on laboratory data from Stephens County. Calcium carbonate percentages indicate the need for the change.
Changed to tabular format and included metric values. Updated competing series, geographic setting, and associated soils sections.

Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon - 0 to 42 cm (0 to 17 in). (A1, A2 and Bss horizons).
Cambic horizon - 42 to 140 cm (17 to 55 in). (A2, Bss, Bkss horizons).
Calcic horizon - 140 to 203 cm (55 to 86 in). (Bk and BCkss horizons).
Vertic features - Slickensides from 28 to 139 cm (11 to 55 in), cracks 2 to 7 cm wide that extend from the surface to a depth of more than 50 cm when the soil is dry. Cracks remain open from 150 to 210 cumulative days during most years. In undisturbed areas there is gilgai microrelief with mircohighs 10 to 30 cm higher than microlows. Cycles of microhighs and microlows are repeated each 2 to 7 m.

ADDITIONAL DATA: KSSL Data from type location 89TX429002.

Taxonomic Version: Soil Taxonomy, Twelfth Edition, 2014.

National Cooperative Soil Survey
U.S.A.