LOCATION FAREWELL MOEstablished Series
TAXONOMIC CLASS: Fine-loamy, siliceous, active, mesic Typic Argiaquolls
TYPICAL PEDON: Farewell silt loam - on a flood plain of 1 percent slope in a fescue pasture at an elevation of 1020 feet. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 8 inches; very dark gray (N 3/) silt loam, very dark grayish brown (2.5Y 3/2) dry; weak fine subangular blocky structure; very friable; many very fine roots throughout; many very fine irregular and tubular pores; common fine distinct rounded gray (2.5Y 6/1) iron depletions; common fine prominent rounded brown (7.5YR 4/4) masses of iron accumulation between peds; few brown (7.5YR 4/4) iron stains in root channels and in pores; 5 percent subangular chert gravel; moderately acid (pH 5.6); clear smooth boundary.
A1--8 to 13 inches; very dark gray (N 3/) silt loam; very dark grayish brown (2.5Y 3/2) dry; moderate fine and medium subangular blocky structure; very friable; common very fine roots throughout; few fine and medium tubular pores and few medium vesicular pores; common fine distinct rounded gray (2.5Y 6/1) iron depletions; few brown (7.5YR 4/4) iron stains in root channels and in pores; common fine irregular brown (7.5YR 4/4) masses of iron accumulation throughout; 2 percent chert gravel; slightly acid (pH 6.4); clear smooth boundary.
A2--13 to 24 inches; very dark gray (10YR 3/1) gravelly silt loam; very dark grayish brown (10YR 3/2) dry; moderate fine subangular blocky structure; friable; common very fine roots throughout; few fine and medium tubular pores and few medium vesicular pores; few fine distinct brown (10YR 5/3) clay depletions on faces of peds; few fine prominent strong brown (7.5YR 4/6) iron stains on faces of peds; common fine rounded strong brown (7.5YR 4/6) slightly hard iron-manganese concretions throughout; 30 percent chert gravel; neutral (pH 6.9); gradual wavy boundary. (combined thickness of the Ap horizon is 10 to 24 inches)
Btg1--24 to 30 inches; light olive brown (2.5Y 5/3) gravelly loam; weak fine subangular blocky structure; friable; few very fine roots throughout; many very fine and fine irregular pores; few discontinuous distinct dark grayish brown (10YR 4/2) clay films bridging sand grains; common fine faint rounded grayish brown (2.5Y 5/2) iron depletions; common fine prominent black (N 2/) iron stains throughout; common fine rounded black (N 2/) slightly hard iron-manganese concretions throughout; 30 percent chert gravel; neutral (pH 7.1) abrupt wavy boundary.
Btg2--30 to 40 inches; light olive brown (2.5Y 5/3) silt loam; moderate medium subangular blocky structure; friable; few very fine roots throughout; few fine and medium tubular pores and few medium vesicular pores; few prominent discontinuous dark grayish brown (10YR 4/2) clay films on faces of peds; common fine distinct rounded light brownish gray (10YR 6/2) and gray (10YR 5/1) iron depletions; few distinct irregular strong brown (7.5YR 4/6) iron stains on faces of peds; few medium prominent irregular black (N 2/) iron-manganese stains on faces of peds; common fine rounded black (N 2/) slightly hard iron-manganese concretions throughout; 10 percent chert gravel; neutral (pH 7.1) gradual wavy boundary.
Btg3--40 to 48 inches; light olive brown (2.5Y 5/3) silt loam; moderate fine and medium subangular blocky structure; firm; few very fine roots throughout; many fery fine tubular pores and few medium vesicular ores; few faint discontinuous dark yellowish brown (10YR 4/4) clay films on faces of peds; common fine distinct rounded light brownish gray (10YR 6/2) iron depletions; few distinct irregular strong brown (7.5YR 4/6) iron stains on faces of peds; few medium prominent irregular black (N 2/) iron-manganese stains of faces of peds; common fine rounded black (N 2/) slightly hard iron-manganese concretions throughout; 5 percent chert gravel; neutral (pH 7.2); gradual wavy boundary.
Btg4--48 to 60 inches; light olive brown (2.5Y 5/4) gravelly loam; moderate fine subangular blocky structure; firm; few very fine roots throughout; many very fine tubular pores; few faint discontinuous dark yellowish brown (10YR 4/4) clay films on faces of peds; few fine distinct rounded light brownish gray (10YR 6/2) iron depletions; few medium prominent irregular black (N 2/) iron-manganese stains throughout; common fine rounded black (N 2/) slightly hard iron-manganese concretions throughout; 25 percent chert gravel; neutral (pH 7.3); gradual wavy boundary.
Btg5--60 to 80 inches; brown (10YR 5/3) silt loam; weak medium subangular blocky structure parting to moderate fine subangular blocky; firm; many very fine tubular pores; few prominent discontinuous brown (7.5YR 4/4) clay films on faces of peds; common fine distinct rounded light brownish gray (10YR 6/2) iron depletions between peds; few medium prominent irregular black (N 2/) iron-manganese stains on faces of peds; few fine rounded black (N 2/) slightly hard iron-manganese concretions throughout; 5 percent chert gravel and 2 percent chert cobbles; neutral (pH 7.3).
TYPE LOCATION: Howell County, Missouri; about 2 miles southeast of Caulfield; 2,400 feet south and 1,700 feet east of the NW corner of section 5, T. 22 N., R. 10 W.; USGS Caulfield, Missouri quadrangle; UTM coordinates, Easting 583240 and Northing 4051560.
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 2
Fine earth: silt loam, loam
Rock fragments: 0 to 35 percent gravel
Reaction: moderately acid to neutral
Upper Btg or Bt horizons
Hue: 10YR or 2.5Y
Value: 2 to 5
Chroma: 0 to 4
Fine earth: silt loam, loam, silty clay loam, clay loam
Rock fragments: 0 to 35 percent gravel
Reaction: moderately acid to slightly alkaline
Lower Btg or Bt horizons
Hue: 5YR to 2.5Y
Value: 2 to 6
Chroma: 0 to 8
Fine earth: clay loam, silt loam, loam, sandy clay loam, clay, sandy loam, loamy sand
Rock fragments: 0 to 35 percent gravel
Reaction: slightly acid to slightly alkaline
2Btg horizon (where present)
Hue: 5YR to 2.5Y
Value: 2 to 6
Chroma: 0 to 8
Rock fragments: 35 to 70
Fine earth: clay loam, silt loam, loam, sandy clay loam
Reaction: slightly acid to slightly alkaline
COMPETING SERIES: There are no other series in this family.
GEOGRAPHIC SETTING: Farewell soils are on nearly level flood plains and low stream terraces. Slopes range from 0 to 3 percent. They formed in loamy alluvium. 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 of these are on similar landscape positions as Farewell soils. Bearthicket soils are well drained and are in the fine-silty family. Deible and Tanglenook soils are poorly drained and are in the fine family. Higdon soils have an ochric epipedon and are in the fine-silty family. Relfe soils are excessively drained and are in the sandy-skeletal family. Sandbur and Zanoni soils are well drained and are in the 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 flooding. These soils have an apparent water table within 18 inches of the surface during wet periods in most years.
USE AND VEGETATION: Most areas are used for hay and pasture production. Native vegetation is mixed hardwoods.
DISTRIBUTION AND EXTENT: The Ozarks Highland area (MLRA 116A) of south-central 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 near where the soil was first identified.
REMARKS: Diagnostic horizons and features recognized in the pedon are:
1) Mollic epipedon - the zone from the surface of the soil to a depth of 24 inches(Ap, A1, and A2 horizons)
2) Argillic horizon - the zone from 24 to 80 inches (Btg horizons)
ADDITIONAL DATA: This soil is being mapped predominantly in the Jefferson City and Roubidoux formation (Ordivician age) in Missouri.
Sampled for the University of Missouri Soil Characterization Lab as M9609131.