LOCATION OLIVE TX

Established Series
DKM-JKW-RM
10/2013

OLIVE SERIES

The Olive series consists of very deep, very poorly drained soils. These soils formed in loamy fluviomarine deposits of the Lissie Formation of Pleistocene age. Slope ranges from 0 to 1 percent but are mainly less than 0.5 percent. Mean annual temperature is about 19.4 degrees C (67 degrees F), and mean annual precipitation is about 1295 mm (51 in).

TAXONOMIC CLASS: Coarse-loamy, siliceous, superactive, thermic Umbric Fragiaquults

TYPICAL PEDON: Olive silt loam--woodland (Colors are for moist soil unless otherwise stated.)

A1--0 to 15 cm (0 to 6 in); very dark grayish brown (10YR 3/2) silt loam; weak fine and medium granular structure; slightly hard, friable; many very fine to coarse roots; many medium and coarse pores; few crayfish krotovinas and tubules; 15 percent fine distinct light brownish gray (10YR 6/2) iron depletions with clear boundaries on interiors of peds; ultra acid; abrupt smooth boundary.

A2--15 to 36 cm (6 to 14 in); dark grayish brown (10YR 4/2) silt loam; moderate medium prismatic structure parting to moderate medium subangular blocky; slightly hard, friable; many fine and medium roots; many fine and medium pores; few crayfish krotovinas and tubules; 1 percent fine faint dark yellowish brown (10YR 4/4) iron concentrations with clear boundaries on surfaces of peds; 1 percent faint grayish brown (2.5Y 5/2) iron depletions with clear boundaries on horizontal surfaces of peds; ultra acid; clear smooth boundary. (Combined thickness of the A horizon is 15 to 51 cm [6 to 20 in] thick)

Eg--36 to 56 cm [14 to 22 in]; light gray (10YR 7/2) silt loam; moderate medium and coarse prismatic structure parting to moderate medium and coarse subangular blocky; hard, firm; many very fine and fine roots between prisms; many very fine and fine pores; 1 percent crayfish krotovinas filled with very pale brown (10YR 8/2) very fine sandy loam; 30 percent medium grayish brown (10YR 5/2) organic stains on surfaces of peds; few fine prominent brown (7.5YR 4/4) iron concentrations with clear boundaries on surfaces of peds; 1 percent fine distinct grayish brown (2.5Y 5/2) iron depletions on horizontal surfaces of peds; 5 percent brittle material 2.5 to 5 cm (1 to 2 in) wide with nonbrittle material in between; ultra acid; clear wavy boundary. (13 to 46 cm [5 to 18 in] thick)

Btxg/Exg1--56 to 106 cm (22 to 42 in); light gray (10YR 7/2) fine sandy loam; moderate medium and coarse prismatic structure parting to weak coarse and very coarse subangular blocky; very hard, very firm; common very fine and fine roots between prisms; common fine, medium, and few coarse pores; 1 percent crayfish krotovinas filled with very pale brown (10YR 8/2) very fine sandy loam; 2 percent fine prominent brown (7.5YR 4/4) iron concentrations with clear and diffuse boundaries on surfaces of peds and in pores; 2 percent fine distinct pinkish gray (7.5YR 7/2) iron depletions with diffuse boundaries on surfaces of prisms; 60 percent brittle material 8 to 36 cm (3 to 14 in) wide with nonbrittle material in between; extremely acid; gradual wavy boundary. (Combined thickness of the Btxg/Exg horizon is 106 to 175 cm [42 to 69 in])

Btxg/Exg2--106 to 166 cm (42 to 65 in); light gray (10YR 7/2) fine sandy loam; moderate very coarse prismatic structure parting to weak very coarse subangular blocky; extremely hard, extremely firm; common very fine and fine roots between prisms; common fine, medium, and coarse pores; 2 percent crayfish krotovinas filled with very pale brown (10YR 8/2) very fine sandy loam; 2 percent medium prominent brownish yellow (10YR 6/8) iron concentrations with diffuse boundaries on surfaces of prisms; 1 percent faint pinkish gray (7.5YR 7/2) iron depletions with diffuse boundaries on surfaces of prisms; 75 percent brittle material with nonbrittle material 2.5 to 5 cm (1 to 2 in) wide in vertical seams between prisms; extremely acid; gradual wavy boundary. (Combined thickness of the Exg subhorizons is 89 to 142 cm [35 to 56 in] thick)

Btxg/Exg3--166 to 198 cm (65 to 78 in); 85 percent light gray (2.5Y 7/2) fine sandy loam; 15 percent light brownish gray (2.5Y 6/2) (Exg); moderate very coarse prismatic structure parting to weak very coarse subangular blocky; extremely hard, extremely firm; very few very fine roots between prisms; many fine and medium and common coarse pores; 2 percent faint light gray (10YR 7/2) clay films along surfaces of prisms in Btxg; 1 percent crayfish krotovinas filled with very pale brown (10YR 8/2) very fine sandy loam; 2 percent fine and medium prominent olive yellow (2.5Y 6/6) and brownish yellow (10YR 6/8) iron concentrations with diffuse boundaries on interiors of peds in Btxg; 2 percent fine and medium faint pinkish gray (7.5YR 7/2) iron depletions on surfaces of prisms; 80 percent brittle material with nonbrittle material 0.5 to 1 cm (1/4 to 1/2 in) wide in vertical seams between prisms; extremely acid; gradual wavy boundary.

Btxg/Exg4--198 to 203 cm (78 to 80 in); 85 percent light gray (2.5Y 7/2) fine sandy loam; 15 percent light gray (10YR 7/2) (Exg); moderate very coarse prismatic structure parting to weak very coarse subangular blocky; extremely hard, extremely firm; very few very fine roots between peds; many medium and common coarse pores; 2 percent faint light gray (10YR 7/2) clay films along surfaces of prisms in Btxg; 1 percent crayfish krotovinas filled with white (10YR 8/1) very fine sandy loam; 15 percent fine prominent olive yellow (2.5Y 6/6) iron concentrations with diffuse boundaries on surfaces of peds; 2 percent medium prominent strong brown (7.5YR 5/6) iron concentrations with diffuse boundaries on interiors of peds in Btxg; 1 percent fine and medium distinct pinkish gray (7.5YR 7/2) iron depletions on surfaces of prisms; 90 percent brittle material with nonbrittle material that is 0.5 to 1 cm (1/4 to 1/2 in wide) in vertical seams between prisms; extremely acid.

TYPE LOCATION: Hardin County, Texas; from the intersection of U.S. Highway 69 and Farm Road 418 in Kountze; 10.5 miles north on U.S. Highway 69; 6.4 miles west on Gore Store Road; 0.2 mile south on forest road; 60 feet west in forest. Hicksbaugh USGS quad: is 30 deg 30 min 52.5 sec N; Longitude is 94 deg 17 min 53 sec W; WGS 84.

RANGE IN CHARACTERISTICS:
Mean annual soil temperature: 20.0 to 21.1 degrees C (68 to 70 degrees F)
Depth to fragipan: 28 to 97 cm (11 to 38 in)
Depth to argillic: 28 to 97 cm (11 to 38 in)

Particle-size control section (weighted average)
Clay content: 3 to 12 percent
Base Saturation: 5 to 20 percent
CEC/clay ratio: .65 to 1.0

A horizon
Hue: 10YR
Value: 2 to 4
Chroma: 1 or 2
Texture: very fine sandy loam, fine sandy loam, silt loam
Redox accumulations: amount- 1 to 8 percent, color-shades of yellow or brown
Redox depletions: amount- 1 to 20 percent, color-shades of gray,
Reaction: ultra acid to extremely acid

Eghorizon
Hue: 10YR
Value: 5 to 8
Chroma: 1 or 2
Texture: very fine sandy loam, fine sandy loam, silt loam
Redox accumulations: amount- 1 to 8 percent, color-shades of yellow or brown
Redox depletions: amount- 1 to 20 percent, color-shades of gray,
Brittle material: 5 to 40 percent
Reaction: ultra acid to extremely acid

Btxg/Exg Horizons
Hue: 10YR or 2.5Y
Value: 6 to 8
Chroma: 1 or 2
Texture: very fine sandy loam, fine sandy loam, silt loam, or loam
Brittle material: 70 to 90 percent
Redox accumulations: amount- 2 to 20 percent, color-shades of brown or yellow and are mostly in the Btg
Redox depletions: amount- 1 to 10 percent, color-shades of gray, green or blue and are mostly on vertical ped faces or root channels
Reaction: extremely acid to very strongly acid

COMPETING SERIES: There are no competing series in the same family. Similar soils include Jasco, Jayhawker, Mashulaville, Tyden, and Toisant.
Jasco and Jayhawker soils: coarse-silty particle-size control section; have more than 35 percent base saturation
Mashulaville and Toisant soils: do not have an umbric epipedon.
Tyden soils: do not have a fragipan.

GEOGRAPHIC SETTING:
Parent material: loamy fluviomarine deposits derived from the Lissie Formation of Pleistocene age
Landscape: coastal plains
Landform: depressions
Slope: 0 to 1 percent but are mainly less than 0.5 percent
Soil Moisture: aquic soil moisture regime.
Mean annual soil temperature: 19.9 to 21.7 degrees C (67.8 to 71.1 degrees F)
Mean annual air temperature range: 19.3 to 20.1 degrees C (66.7 to 68.2 degrees F)
Mean annual precipitation range: 1219 to 1473 mm (48 to 58 in)
Precipitation Pattern: Precipitation is generally uniform throughout the year with slight peaks in the spring and fall months.
Frost-free period: 240 to 300 days
Elevation: 22.9 to 46 m (75 to 150 ft)

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Babco, Belrose, Dallardsville, Jayhawker, and Tyden soils.
Babco soils: have spodic horizons; on oblong mounds.
Belrose soils: do not have a fragipan; moderately well drained; on higher landform.
Dallardsville soils: moderately well drained; on oblong mounds.
Jayhawker soils: fragipan at 140 to 191 cm (55 to 75 in;on a similar landform.
Tyden soils: do not have fragipans; are on similar landform.

DRAINAGE AND PERMEABILITY: Olive soils are very poorly drained. Runoff is negligible. Permeability is very slow. These soils are ponded 15 to 46 cm (6 to 18 in) above the surface from November to May and have aquic conditions in most years. A perched water table exists from the surface to the top of the fragipan during the same time.

USE AND VEGETATION: Used primarily for wildlife habitat. Some areas are used for woodland. Native vegetation is longleaf pine, black gum, red maple, swamp cyrilla, cinnamon fern, rushes and sedges and grasses such as paspalums and panicums.

DISTRIBUTION AND EXTENT: The Western Gulf Coast Flatwoods (MLRA 152B) of southeast Texas. The series is of small extent.

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

SERIES ESTABLISHED: Hardin County, Texas; 1998.

REMARKS: The Olive soils were formerly included with the Waller and Sorter series. The series horizonation was updated during the update of MLRA 152B. A review of the lab data indicate that fine clay increases at 56 cm. The argillic horizon starts at this depth.

Diagnostic horizons and features recognized in this pedon are:

Umbric epipedon- 0 to 15 cm (0 to 6 in) (A1 horizon)

Fragipan- 56 to 203 cm (22 to 80 in) (Exg and Exg/Btxg horizons)

Albic horizon- 36 to 56 cm (14 to 22 in (Eg horizon)

Argillic horizon material in the form of clay films more than 1 mm thick and increased fine clay content- 56 to 203 (22 to 80 in) (Btxg/EXg horizons)

Aquic conditions- These soils have a reduced matrix and are ponded 6 to 18 in above the surface from November to May in most years.

Soil Interpretation Record Number: TX1336

Taxonomic Version: Keys to Soil Taxonomy, Eleventh edition, 2010

ADDITIONAL DATA: Texas A&M University Soil Characterization Lab data on sample (S95TX-199-003) from type location in Hardin County, TX.

National Cooperative Soil Survey
U.S.A.