LOCATION ASLINGER MOEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Fragiaquic Paleudults
TYPICAL PEDON: Aslinger silt loam - on a shoulder of a terrace remnant with 8 percent convex slope in a fescue field at an elevation of 745 feet. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 4 inches; dark yellowish brown (10YR 4/4) silt loam, light yellowish brown (10YR 6/4) dry; moderate very fine and fine granular structure; very friable; many very fine and fine roots; 2 percent subrounded chert gravel; moderately acid (pH 5.7); clear smooth boundary. (2 to 7 inches thick)
AB--4 to 8 inches; dark yellowish brown (10YR 4/4) and dark yellowish brown (10YR 4/6) silt loam; weak very fine subangular blocky structure parting to weak very fine granular; very friable; many very fine and fine roots; 1 percent subrounded chert gravel; slightly acid (pH 6.2); clear smooth boundary. (0 to 7 inches thick)
Bt1--8 to 16 inches; dark yellowish brown (10YR 4/6) silt loam; weak medium prismatic structure parting to moderate fine subangular blocky; friable; common very fine and fine roots; common faint clay films on faces of peds; 1 percent subrounded chert gravel; moderately acid (pH 5.9); abrupt smooth boundary.
Bt2--16 to 21 inches; yellowish brown (10YR 5/8) and light brownish gray (10YR 6/2) silt loam; common coarse distinct pale brown (10YR 6/3) iron depletions; moderate thick platy structure parting to moderate fine subangular blocky; friable; few very fine roots; common distinct dark yellowish brown (10YR 4/6) clay films on faces of peds and few prominent clay films on vertical faces of peds; 7 percent subrounded chert gravel; very strongly acid (pH 4.9); clear smooth boundary. (combined thickness of the Bt horizon is 6 to 25 inches)
2Btx--21 to 29 inches; yellowish brown (10YR 5/6) and light brownish gray (10YR 6/2) very gravelly silt loam; moderate thick platy structure parting to moderate fine subangular blocky; friable; few very fine roots between peds; common prominent dark yellowish brown (10YR 4/6) clay films on vertical faces of peds; 53 percent subrounded chert gravel and 1 percent subrounded chert cobbles; 30 percent brittleness; very strongly acid (pH 4.8); clear irregular boundary. (4 to 36 inches thick)
3Bt1--29 to 40 inches; strong brown (7.5YR 5/6) and red (2.5YR 4/6) very gravelly silty clay loam; moderate fine subangular blocky structure; firm; many prominent grayish brown (10YR 5/2) clay films on faces of peds; 56 percent subrounded chert gravel and 1 percent subrounded chert cobbles; very strongly acid (pH 4.6); gradual wavy boundary.
3Bt2--40 to 48 inches; yellowish red (5YR 5/8) very gravelly clay loam; moderate fine subangular blocky structure; firm; many prominent light brownish gray (10YR 6/2) clay films on faces of peds; 49 percent subrounded chert gravel and 2 percent subrounded chert cobbles; very strongly acid (pH 4.7); clear wavy boundary.
3Bt3--48 to 55 inches; strong brown (7.5YR 5/6) very gravelly clay loam; moderate fine subangular blocky structure; firm; many prominent light gray (N 7/0) clay films on faces of peds; few black masses of manganese or iron-manganese accumulation; 40 percent subrounded chert gravel and 10 percent subrounded chert cobbles; very strongly acid (pH 4.8); clear wavy boundary. (combined thickness of the 3Bt horizon is 11 to 35 inches)
4Bt4--55 to 80 inches; yellowish red (5YR 5/6) extremely cobbly clay; moderate fine subangular blocky structure; firm; many prominent continuous dark red (2.5YR 3/6) clay films on faces of peds and few prominent patchy gray (10YR 5/1) clay films; 35 percent chert gravel and 40 percent chert cobbles; very strongly acid (pH 4.7).
TYPE LOCATION: Madison County, Missouri; about 5 miles south of Cherokee Pass on the east side of Highway 67; 475 feet west and 2,100 feet north of the southeast corner of Section 31, T. 32 N., R. 7 E.; Cherokee Pass USGS quadrangle; latitude 37 degrees 24 minutes 43 seconds N., longitude 90 degrees 18 minutes 37 seconds W.
RANGE IN CHARACTERISTICS: Depth to 2Btx horizon is 20 to 36 inches.
A or Ap horizon
Hue: 10YR or 7.5YR
Value: 3 to 5 (where the moist value is 3, the dry value is 6)
Chroma: 2 to 4
Fine earth: silt, silt loam
Rock fragments: 0 to 10 percent gravel
Reaction: slightly acid to extremely acid
AB horizon
Hue: 10YR or 7.5YR
Value: 4
Chroma: 3 to 6
Fine earth: silt loam
Rock fragments: 0 to 15 percent gravel
Reaction: slightly acid to very strongly acid
E horizon (Where present)
Hue: 10YR or 7.5YR
Value: 5 or 6
Chroma: 4 to 6
Fine earth: silt, silt loam
Rock fragments: 0 to 4 percent
Reaction: slightly acid to extremely acid
Bt horizon
Hue: 10YR to 5YR
Value: 4 to 6
Chroma: 4 to 8
Fine earth: loam, silt loam, silty clay loam
Rock fragments: 0 to 20 percent gravel
Reaction: slightly acid to extremely acid
2Btx and 3Bt horizons
Hue: 10YR to 2.5YR
Value: 4 to 6
Chroma: 2 to 8
Fine earth: loam, silt loam, silty clay loam, clay loam, sandy clay
Rock fragments: 15 to 65 percent gravel, 0 to 10 percent cobbles
Reaction: strongly acid or very strongly acid
4Bt horizon
Hue: 10YR to 2.5YR
Value: 4 to 6
Chroma: 2 to 8
Fine earth: silty clay, clay loam, clay, sandy clay
Rock fragments: 15 to 80 percent gravel, 0 to 40 percent cobbles
Reaction: strongly acid to extremely acid
COMPETING SERIES: This is the Firebaugh series. Firebaugh soils have a 2Bt horizon that formed in residuum from dolomite.
GEOGRAPHIC SETTING: Aslinger soils are on gently sloping to strongly sloping high terraces, strath terraces, valley footslopes, and in heads of drainageways. These soils formed in loamy colluvium and loamy or clayey alluvium. Slopes range from 1 to 15 percent. Mean annual temperature is 54 to 58 degrees F., and the mean annual precipitation is 38 to 45 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Alred, Captina, Clarksville, Cornwall, Freeburg, Relfe, Secesh, Tilk, and Viraton soils. Alred and Clarksville soils are skeletal and are on adjacent uplands. Captina and Viraton soils have fragipans and are on uplands. Cornwall soils are fine-silty and are on similar landscape positions. Freeburg soils are somewhat poorly drained, are fine-silty, and are on similar landscape positions. Relfe and Tilk soils are better drained, have more rock fragments in the upper part of the profile, and are on lower terraces and flood plains. Secesh soils are well drained and are on lower terraces and floodplains.
DRAINAGE AND PERMEABILITY: Moderately well drained. Runoff is low to medium. Permeability is moderately slow, and the saturated hydraulic conductivity is moderately high. A perched water table is from 1.5 to 2.5 feet from winter to early spring in most years.
USE AND VEGETATION: Most areas of these soils are used for pasture or hay crops. Most of the remaining acreage is in timber. A small portion is used for grain production. Native vegetation was hardwoods with some shortleaf pine.
DISTRIBUTION AND EXTENT: The Ozarks region (MLRA 116A and 116B) of southern Missouri. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Madison County, Missouri soil survey; 1998.
REMARKS: Diagnostic horizon and features recognized in this pedon are:
Ochric epipedon - the zone from the surface to a depth 8 inches (Ap and AB horizons)
Argillic horizon - the zone from 8 inches to greater than 80 inches (Bt, 2Bt, and 3Bt horizons).
Fragiaquic feature - 30 percent brittleness and redox depletions with chroma of 2 within 30 inches of the surface (2Btx horizon)
ADDITIONAL DATA: University of Missouri soil characterization lab data number M9412306.