LOCATION WOOLLY MOEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, mesic Cumulic Hapludolls
TYPICAL PEDON: Woolly very gravelly clay loam, on a floodplain with a 1 percent slope, in a meadow at an elevation of 960 feet.
A1--0 to 5 inches; very dark gray (10YR 3/1) very gravelly clay loam, dark gray (10YR 4/1) dry; weak fine granular structure; very friable; many very fine and fine roots throughout; 40 percent subrounded mixed gravel; slightly acid (pH 6.3); clear smooth boundary.
A2--5 to 10 inches; very dark grayish brown (10YR 3/2) extremely gravelly sandy clay loam, dark grayish brown (10YR 4/2) dry; weak fine granular structure; very friable; many very fine and fine roots throughout; 70 percent subrounded mixed gravel; slightly acid (pH 6.4); clear smooth boundary.
A3--10 to 27 inches; dark brown (10YR 3/3) extremely gravelly clay loam, dark brown (10YR 3/3) dry; weak very fine granular structure; very friable; many very fine and fine roots throughout; common faint discontinuous very dark grayish brown (10YR 3/2) organic coats on faces of peds; 60 percent subrounded mixed gravel and 20 percent subangular mixed cobbles; neutral (pH 7.1); clear smooth boundary. (combined thickness of the A horizon is 24 to 50 inches)
C1--27 to 32 inches; brown (10YR 4/3) extremely gravelly clay loam; massive; friable; many very fine and fine roots throughout; few distinct discontunuous very dark grayish brown (10YR 3/2) organic coats on faces of peds; common fine rounded black (N 2/0) masses of iron and manganese accumulation; 65 percent subrounded mixed gravel and 20 percent subrounded mixed cobbles; slightly alkaline (pH 7.4); gradual smooth boundary.
C2--32 to 50 inches; brown (10YR4/3) extremely gravelly clay loam; massive; friable; common very fine roots throughout; common fine rounded black (N 2/0) masses of iron and manganese accumulation between peds; 75 percent subrounded mixed gravel and 13 percent subangular mixed cobbles; slightly alkaline (pH 7.6); abrupt wavey boundary. (Combined thickness of the C horizon is 16 to 40 inches)
R--50 inches; dolomite
TYPE LOCATION: Stone County Missouri; 3.75 miles west-southwest of Cape Fair Missouri; 1250 feet south and 100 feet east of the northwest corner of section 7, T. 23 N., R. 24 W; Cape Fair USGS quadrangle, latitude 36 degrees 42 minutes 57 seconds N. and longitude 93 degrees 34 minutes 32 seconds W.; UTM Easting 448495m, UTM Northing 4063580m.
RANGE IN CHARACTERISTICS:
Depth to Bedrock: 40 to 60 inches
Mollic epipedon: 24 to 50 inches thick.
Particle size control section: averages 20 to 35 percent clay and 35 to 80 percent rock fragments.
Reaction: slightly acid to moderately alkaline.
A or Ap horizon
Hue: 7.5YR or 10YR
Chroma: 1 to 3
Fine-earth: clay loam or sandy clay loam
Total rock fragments: 15 to 80 percent; 15 to 80 percent gravel and 0 to 10 percent cobbles
C or 2C horizon
Hue: 7.5YR or 10YR
Value: 3 or 4
Chroma: 1 to 4
Fine-earth: silt loam, loam, clay loam, coarse sandy loam, or silty clay
Total rock fragments: 35 to 85 percent; 35 to 85 percent gravel, 0 to 20 percent cobbles, and 0 to 10 percent flags
COMPETING SERIES: This is the Cedargap series. Cedargap soils are more than 60 inches deep to bedrock.
GEOGRAPHIC SETTING: Woolly soils are on narrow flood plains in cherty limestone and dolomite areas. Slopes range from 0 to 5 percent. These soils formed in alluvium with a high content of rock fragments. The mean annual temperature is 55 to 58 degrees F. The mean annual precipitation is 38 to 48 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Blueye, Gasconade, Gobbler, Moko, Sonsac, and Waben soils. Blueye and Sonsac soils are 20 to 40 inches to bedrock. Gobbler, Sonsac, and Waben soils do not have a mollic epipedon. Gasconade and Moko soils are less than 20 inches to bedrock. Blueye, Gasconade, Gobbler, Moko, and Sonsac soils are on uplands. Waben soils are on terraces.
DRAINAGE AND PERMEABILITY: Well drained. Permeability is moderate. Surface runoff is low. Woolly soils are subject to occasional flooding.
USE AND VEGETATION: These soils are used mainly for pasture and hay. Native vegetation was hardwoods with a grass understory.
DISTRIBUTION AND EXTENT: The Ozarks 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: This soil has previously been included with the Cedargap series in mapping. Diagnostic horizon and features in this pedon include:
1) Mollic epipedon - the zone from the surface to a depth of 27 inches. (A1, A2, and A3 horizons)
2) Cumulic feature - the mollic epipedon is more than 24 inches thick.
3) Lithic contact - hard dolomite bedrock at 50 inches.
Hydrology and lateral flow of recharge water over dolomite has recycled carbonates to the profile and encouraged a grass understory. This grass understory has influenced the formation of a mollic epipedon in a dominantly forested landscape.
ADDITIONAL DATA: University of Missouri Soil Charactization Lab number M9420915.