LOCATION STELLTOWN AR
Established Series
JWO, RKR, AMR
03/2022
STELLTOWN SERIES
The Stelltown series consists of very deep, moderately well drained, moderately permeable soils. They formed in thick beds of sandy loam Cretaceous Age marine deposits. They are on interfluves of the Cretaceous Western Gulf Coastal Plain. Slopes range from 0 to 12 percent.
TAXONOMIC CLASS: Coarse-loamy, mixed, semiactive, thermic Aquic Hapludults
TYPICAL PEDON: Stelltown fine sandy loam in an area of pasture.
A--0 to 15 cm (0 to 6 in); dark gray (10YR 4/1) sandy loam; few fine prominent yellowish brown (10YR 5/6) mottles, weak medium subangular blocky structure; friable; common fine and common very fine roots; fragments of sandstone make up 5% by volume; slightly acid; clear wavy boundary.
E--15 to 28 cm (6 to 11 in); light yellowish brown (2.5Y 6/4) sandy loam; few medium distinct olive yellow (2.5Y 6/6) mottles; strong brown (7.5YR 5/6) iron accumulation on surfaces along root channels; fine and medium distinct light brownish gray (2.5Y 6/2) iron depletions; weak medium subangular blocky structure; friable; few very fine, few fine, and few medium roots; fragments of sandstone make up 5% by volume; strongly acid; clear wavy boundary.
Bt1--28 to 69 cm (11 to 27 in); brownish yellow (10YR 6/6) sandy loam; few fine distinct yellowish brown (10YR 5/8) iron accumulations, common fine and medium prominent light brownish gray (10YR 6/2) iron depletions; light brownish gray(10YR 6/2) iron depletions on surfaces along root channels; moderate medium and moderate coarse subangular blocky structure; friable; few very fine and fine, very few medium roots; few patchy clay films; strongly acid; clear wavy boundary.
Bt2--69 to 104 cn (27 to 41 in); yellowish brown (10YR 5/6) sandy loam; few medium faint yellowish red (5YR 5/6) iron accumulations on faces of peds, many medium prominent gray (10YR 6/1) iron depletions along ped seams; few fine black(10YR 2/1) manganese accumulations; moderate medium subangular blocky structure; firm; few very fine and fine roots; common distinct clay films on seams; about 4 percent plinthite; very strongly acid; clear irregular boundary.
Bt3--104 to 203 cm (41 to 80 in); mottled yellowish brown (10YR 5/6), gray (10YR 6/1), and red (2.5YR 4/8); sandy clay loam; about 4 percent plinthite; moderate medium and coarse angular blocky structure; firm; few very fine and fine roots; few distinct clay films on ped faces; 20 percent plinthite; 5 to 10 percent by volume brittle masses; very strongly acid
TYPE LOCATION: Pike County, Arkansas; SW1/4 NE1/4 NW1/4 sec. 16, T. 8 S., R. 23. W.; ANTOINE USGS topographic quadrangle; Latitude 34 degrees 03 minutes, 12 seconds North; Longitude 93 degrees, 28 minutes, 9 seconds West
RANGE IN CHARACTERISTICS:
Solum thickness: greater than 152 cm (60 in)
Reaction ranges from slightly acid to strongly acid, except those surface layers that have been limed.
A or Ap horizon
Hue of 10YR
Value of 3 to 5
Chroma of 1 to 3
Fine-earth: loam, sandy loam, fine sandy loam, or loamy sand
Rock fragments: 0 to 10 percent, predominantly gravel size
AB or BA horizon, where present
Hue of 10YR
Value of 5 or 6
Chroma of 4
Fine-earth: fine sandy loam
Rock fragments: 0 to 10 percent, predominantly gravel size
E horizon
Hue of 10YR
Value of 5 or 6
Chroma of 2 to 4
Fine-earth is loam, sandy loam, fine sandy loam, or loamy sand
Rock fragment: 0 to 10 percent, predominantly gravel size
Bt1 horizon
Hue of 7.5YR to 10YR
Value of 5 or 6
Chroma of 4 to 8, or variegated in shades of brown and gray
Redoximorphic features: chroma of 2 or less range from none to many
Fine-earth: fine sandy loam, loam, or sandy loam
Rock fragments: 0 to 10 percent, predominantly gravel size
Bt2 horizon
Hue of 5YR to 10YR
Value of 5 or 6
Chroma of 6 to 8
Redoximorphic features: chroma of 2 or less range from none to many; iron-manganese masses are none to common
Fine-earth: loamy sand, fine sandy loam, sandy loam, or loam
Rock fragments: 0 to 10 percent, predominantly gravel size
Bt3 horizon
Hue of 5YR to 10YR
Value of 5 or 6
Chroma of 6 to 8, or variegated in shades of brown, red, and gray
Redoximorphic features: chroma of 2 or less range from none to many; iron-manganese masses are none to common
Fine-earth: very fine sandy loam, fine sandy loam, sandy clay loam, sandy loam, or their gravelly analogs
Rock fragments: 0 to 30 percent, predominantly gravel size
COMPETING SERIES: This is the
Munden series.
Munden soils have a solum thickness between 64 to 127 cm (25 and 50 in).
GEOGRAPHIC SETTING: Stelltown soils are on nearly level to sloping interfluves of the Cretaceous Western Coastal Plain. Slope gradients range from 0 to 12 percent. The soil formed in marine deposits consisting of thick beds of sandy loams. The mean annual temperature ranges from 14 to 16 degrees C (58 to 60 degrees F), and the mean annual precipitation ranges from 1193 to 1448 mm (47 to 57 in).
GEOGRAPHICALLY ASSOCIATED SOILS: These are the McCaskill,
Peanutrock,
Pikecity and
Smithton series.
McCaskill soils are on similar landscapes and are somewhat poorly drained.
Peanutrock soils have a loamy-skeletal family control section.
Pikecity soils are on similar landscapes and have a fine-loamy family control section.
Smithton soils are slightly lower in the landscape and are poorly drained.
DRAINAGE AND PERMEABILITY: Moderately well drained; slow to medium runoff and moderate permeability.
USE AND VEGETATION: Most of the acreage is in forest of loblolly, shortleaf, and slash pines. The understory is American beauty berry, and native grass species plants. Cleared areas are used for pasture, hay, corn, and soybeans.
DISTRIBUTION AND EXTENT: The Cretaceous Western Gulf Coastal Plain (MLRA 135B) of Arkansas and possibly Oklahoma. The series is of moderate extent.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: TEMPLE, TEXAS
SERIES ESTABLISHED: Pike County, Arkansas, 2006.
REMARKS: Stelltown soils were formerly included in the Harleston series.
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National Cooperative Soil Survey
U.S.A.