LOCATION HOOTENTOWN MOEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, active, mesic Typic Paleudalfs
TYPICAL PEDON: Hootentown silt loam on a 2 percent slope in a meadow at an elevation of 990 feet. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 7 inches; brown (10YR 4/3) silt loam, pale brown (10YR 6/3) dry; weak fine granular structure; friable; many very fine and fine roots; few fine soft dark masses; moderately acid; clear smooth boundary. (3 to 9 inches thick)
BA--7 to 12 inches; brown (7.5YR 4/4) silt loam; many fine faint dark brown (7.5YR 3/3) mottles; weak very fine and fine subangular blocky structure; friable; common very fine and fine roots; few fine soft dark masses; slightly acid; clear smooth boundary. (0 to 7 inches thick)
Bt1--12 to 17 inches; brown (7.5YR 4/4) silt loam; few fine faint brown (7.5YR 5/4) and many fine faint dark brown (7.5YR 3/3) mottles; weak medium prismatic structure parting to moderate very fine and fine subangular blocky; friable; common very fine and fine roots; few faint clay films (cutans) on faces of peds; few fine soft dark masses; slightly acid; clear smooth boundary.
Bt2--17 to 32 inches; brown (7.5YR 4/4) silt loam; few fine distinct yellowish brown (10YR 5/4) and many fine faint dark brown (7.5YR 3/4) mottles; weak medium prismatic structure parting to moderate very fine and fine subangular blocky; friable; common very fine and fine roots; few faint clay films (cutans) on faces of peds; few fine soft dark masses; slightly acid; clear smooth boundary.
Bt3--32 to 40 inches; strong brown (7.5YR 4/6) and dark brown (7.5YR 3/4) silt loam; common fine distinct dark reddish brown (5YR 3/4) mottles; moderate medium prismatic structure parting to moderate very fine subangular blocky; friable; few very fine and fine roots; few faint clay films (cutans) on faces of peds; few distinct light yellowish brown (10YR 6/4) clay films (cutans) on faces of peds and in pores; few prominent pale brown (10YR 6/3) clay depletions (sand or silt) on faces of peds and in pores; few fine soft dark masses (Fe-Mn); neutral; clear smooth boundary.
Bt4--40 to 60 inches; strong brown (7.5YR 4/6) and brown (7.5YR 4/4) silt loam; few fine distinct brown (10YR 5/3) and common fine distinct dark reddish brown (5YR 3/4) mottles; moderate medium prismatic structure parting to moderate very fine subangular blocky; firm; few faint clay films (cutans) on faces of peds; few fine soft dark masses (Fe-Mn); slightly acid. (Thickness of the Bt horizon is 42 to 72 inches.)
TYPE LOCATION: Stone County Missouri; 3 miles NE of Galena; 2,375 feet east and 2,570 feet north of the south west corner of section 22, T. 25 N., R. 23 W.; Galena USGS quadrangle; latitude 36 degrees 51 minutes 15 seconds N., longitude 93 degrees 26 minutes 27 seconds W.
RANGE IN CHARACTERISTICS:
Depth to Bedrock: greater than 80 inches
Note: Thin lenses of up to 70 percent gravel may be present in some pedons.
Note: The particle size control section averages less than 15 percent sand and gravel, and 18 to 35 percent clay.
A or Ap horizon
Hue: 7.5YR or 10YR
Value: 3 or 4
Chroma: 3 or 4
Total rock fragments: 0 to 10 percent gravel
Reaction: strongly or slightly acid
Note: If value is 3 and chroma is 3, the thickness is less than 6 inches.
BA or horizon
Hue: 7.5YR or 10YR
Value: 3 or 4
Chroma: 2 to 6
Total rock fragments: 0 to 5 percent
Reaction: strongly acid to neutral
Bt horizon
Hue: 5YR to 10YR
Value: 3 to 5
Chroma: 2 to 6
Fine-earth: silt loam, silty clay loam, silty clay, clay loam, or loam
Total rock fragments: 0 to 25 percent
Reaction: strongly acid to neutral
COMPETING SERIES: These are the Crider, Navilleton, Peridge, Ryker, Stinesville, and Winnipeg series. Crider, Navilleton, Peridge, and Winnipeg soils have a 2Bt horizon (lithologic discontinuity) consisting of residuum or colluvium in the lower part. Ryker and Stinesville soils have a 2Bt horizon (lithologic discontinuity) consisting of glacial drift in the lower part of the series control section.
GEOGRAPHIC SETTING: Hootentown soils are on flood plains and terraces. Slopes range from 0 to 3 percent. These soils formed in silty alluvium. The mean annual temperature varies from 54 to 58 degrees F. The mean annual precipitation varies from 38 to 48 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Gasconade, Hailey, Horsecreek, Jamesfin, and Reuter soils. Horsecreek and Jamesfin soils are on lower floodplains. Horsecreek soils have thicker dark surface layer. Jamesfin soils do not have an argillic horizon. Gasconade, Hailey, and Reuter soils are on the adjacent uplands. Gasconade soils are clayey-skeletal and are shallow to bedrock. Hailey and Reuter soils are loamy-skeletal.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is negligible to low. Permeability is moderate. The saturated hydraulic conductivity is moderately high. These soils are subject to rare flooding for very brief to brief periods.
USE AND VEGETATION: These soils are used mainly for pasture and hayland. A few areas are used for cultivated crops. Native vegetation is mixed hardwoods.
DISTRIBUTION AND EXTENT: The Ozark region of Missouri and possibly Arkansas (MLRAs 116A and 116B). This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Stone County, Missouri, 1997.
REMARKS: Diagnostic horizons and features in this pedon include:
Ochric epipedon - the zone from 0 to 12 inches (A and BA horizons).
Argillic horizon - the zone from a depth of 12 to 60 inches (Bt1, Bt2, Bt3, and Bt4 horizons).
ADDITIONAL DATA: Missouri Soil Characterization lab number is M9220924.
Interpretations for the typical pedon are stored in the Missouri NASIS data set in DMU description 209 74640.