LOCATION BATCAVE MOEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, siliceous, active, mesic Typic Argiaquolls
TYPICAL PEDON: Batcave gravelly loam - on a flood plain of 1 percent slope in a fescue pasture at an elevation of 1,130 feet. (Colors are for moist soil unless otherwise stated.)
Ap1--0 to 4 inches; very dark grayish brown (10YR 3/2) gravelly loam, dark grayish brown (10YR 4/2) dry; moderate fine and medium granular structure; very friable; many very fine and fine roots throughout and a few medium roots throughout; many very fine and fine irregular pores; 15 percent subrounded chert gravel; slightly acid (pH 6.1); abrupt smooth boundary.
Ap2--4 to 12 inches; dark brown (10YR 3/3) gravelly loam, brown (10YR 4/3) dry; moderate fine granular structure; friable; common very fine and fine roots throughout; common fine tubular pores; common fine rounded black (N 2/) hard iron-manganese concretions throughout; 20 percent subrounded chert gravel; slightly acid (pH 6.2); clear smooth boundary. (combined thickness of the Ap horizon is 10 to 24 inches)
Bt1--12 to 16 inches; dark yellowish brown (10YR 4/4) very gravelly loam; moderate fine subangular blocky structure; firm; common very fine and fine roots throughout; common fine tubular pores; common fine faint discontinuous brown (10YR 4/3) clay films on faces of peds; common fine distinct grayish brown (10YR 5/2) iron depletions; common fine rounded black (N 2/) slightly hard iron-manganese concretions throughout; 50 percent subrounded chert gravel; moderately acid (pH 6.0); clear smooth boundary.
Bt2--16 to 24 inches; dark yellowish brown (10YR 4/6) extremely gravelly loam; weak fine subangular blocky structure; firm; few fine roots throughout; common fine tubular pores and few fine vesicular pores; common fine distinct discontinuous brown (10YR 5/3) clay films on faces of peds; common fine prominent light brownish gray (10YR 6/2) iron depletions; many medium distinct yellowish brown (10YR 5/6) masses of iron accumulation; common fine rounded black (N 2/) hard iron-manganese concretions throughout; 60 percent subrounded chert gravel and 2 percent subrounded mixed cobbles; moderately acid (pH 6.0); clear smooth boundary.
Bt3--24 to 33 inches; dark yellowish brown (10YR 4/4) very gravelly sandy clay loam; weak fine subangular blocky structure; firm; few fine roots throughout; few fine irregular and tubular pores; common fine distinct discontinuous dark brown (10YR 3/3) clay films on faces of peds; many medium prominent light brownish gray (10YR 6/2) iron depletions; common medium prominent yellowish brown (10YR 5/6) masses of iron accumulation; common fine rounded black (N 2/) hard iron-manganese concretions throughout; 50 percent subrounded chert gravel; neutral (pH 6.8); gradual wavy boundary.
Bt4--33 to 45 inches; brown (10YR 5/3) silty clay loam; weak fine subangular blocky structure; firm; few fine roots throughout; few very fine and fine irregular and tubular pores; few medium prominent discontinuous gray (10YR 5/1) clay films on faces of peds; many medium prominent light brownish gray (10YR 6/2) iron depletions; common medium prominent yellowish brown (10YR 5/6) masses of iron accumulation between peds; few medium prominent irregular black (N 2/) iron-manganese stains throughout; common fine rounded black (N 2/) slightly hard iron-manganese concretions throughout; 2 percent subrounded chert gravel; neutral (pH 6.9); gradual wavy boundary.
Bt5--45 to 80 inches; yellowish brown (10YR 5/4) gravelly clay loam; weak fine subangular blocky structure; firm; few very fine roots throughout; few very fine and fine irregular and tubular pores; common medium prominent discontinuous light brownish gray (10YR 6/2) clay films on faces of peds; many medium prominent light brownish gray (10YR 6/2) iron depletions; common medium distinct yellowish brown (10YR 5/6) masses of iron accumulation on faces of peds; few medium prominent irregular black (N 2/) iron-manganese stains throughout; common fine rounded black (N2/) hard iron-manganese concretions throughout; 15 percent subrounded chert gravel; neutral (pH 7.1).
TYPE LOCATION: Howell County, Missouri; about 7 miles southeast of Cabool; one-half mile southwest of the bridge on State Route AM on Indian Creek; 1,700 feet north and 200 feet west of the SE corner of section 17, T. 27 N., R. 10 W.; USGS Cabool Southeast quadrangle; UTM coordinates, Easting 584130, Northing 4096930.
RANGE IN CHARACTERISTICS:
Solum thickness: 80 or more inches
Ap and A horizons:
Hue: 10YR or 2.5Y
Value: 2 or 3
Chroma: 0 to 3
Fine earth: silt loam, loam
Rock fragments: 0 to 40 percent gravel
Reaction: moderately acid to slightly alkaline
Upper Bt or Btg horizons:
Hue: 10YR or 2.5Y
Value: 3 to 5
Chroma: 2 to 6
Fine earth: silt loam, loam, silty clay loam, clay loam, sandy clay loam
Rock fragments: 30 to 70 percent gravel, 0 to 15 percent cobbles
Reaction: moderately acid to slightly alkaline
Lower Bt or Btg horizons:
Hue: 5YR to 2.5Y
Value: 2 or 6
Chroma: 2 to 8
Fine earth: silt loam, loam, silty clay loam, clay loam, sandy clay loam, clay
Rock fragments: 0 to 70 percent gravel
Reaction: moderately acid to slightly alkaline
COMPETING SERIES: Batcave is the only series in the family.
GEOGRAPHIC SETTING: Batcave soils are on nearly level flood plains and low stream terraces. They formed in alluvium. Slopes range from 0 to 3 percent. Elevations are commonly 400 to 1,150 feet. Mean annual temperature ranges from 55 to 58 degrees F., and the mean annual precipitation ranges from 40 to 45 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Bearthicket, Deible, Higdon, Relfe, Sandbur, Tanglenook, and Zanoni soils. All are on similar positions as the Batcave soils. Bearthicket soils are well drained and are in the fine-silty family. Deible and Tanglenook soils are poorly drained and in the fine family. Higdon soils have an ochric epipedon and are fine-silty family. Relfe soils are excessively drained and are sandy-skeletal. Sandbur and Zanoni soils are well drained and are coarse-loamy family.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained. Runoff is negligible to very high. Permeability is moderate, and the saturated hydraulic conductivity is moderately high. Most areas are subject to occasional to frequent flooding. There is an apparent water table within 18 inches of the surface during wet periods in most years.
USE AND VEGETATION: These soils are used mainly for hay and pasture production. Native vegetation is mixed hardwoods.
DISTRIBUTION AND EXTENT: The Ozark Highlands region (MLRA 116A) of southern Missouri and possibly northern Arkansas. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Howell County, Missouri soil survey; 2004. The name comes from a hollow east of Alton, Missouri near where the series was first identified.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
1) Mollic epipedon - the zone from the surface of the soil to a depth of 12 inches. (Ap1 and Ap2 horizons)
2) Argillic horizon - the zone from 12 to 80 inches. (Bt, 2Bt, and 3Bt horizons)
3) Aquic feature - redoximorphic properties from 12 to 80 inches.
ADDITIONAL DATA: These soils are being mapped predominantly in the Jefferson City and Roubidoux formations (Ordivician age) in Missouri.
Sampled for the University of Missouri Soil Characterization Lab as M9709156. The lab data indicates that this pedon is semiactive, but the classification of active is based on a majority of the lab data.