LOCATION GOBBLER MOEstablished Series
TAXONOMIC CLASS: Clayey-skeletal, mixed, active, mesic Typic Hapludalfs
TYPICAL PEDON: Gobbler gravelly silt loam - on a 14 percent slope in a forested area at an elevation of 1,015 feet.
A--0 to 3 inches; very dark grayish brown (10YR 3/2) gravelly silt loam; weak fine granular structure; friable; many very fine, fine, medium and coarse roots throughout; 30 percent chert gravel; slightly acid; clear smooth boundary. (2 to 8 inches thick)
E--3 to 6 inches; grayish brown (10YR 5/2) very gravelly silt loam; weak fine granular structure; friable; many fine and medium and common coarse roots throughout; few fine prominant black masses of iron and manganese accumulation; 40 percent chert gravel; strongly acid; clear smooth boundary. (0 to 6 inches thick)
BE--6 to 13 inches; yellowish brown (10YR 5/4) very gravelly silty clay loam; weak very fine subangular blocky structure; friable; many fine and medium and common coarse roots throughout; few fine and medium prominant black masses of iron and manganese accumulation; 45 percent chert gravel; strongly acid; clear smooth boundary. (0 to 9 inches thick)
Bt1--13 to 20 inches; dark yellowish brown (10YR 4/6) extremely gravelly silty clay loam; weak fine subangular blocky structure; firm; many fine and medium and common coarse roots throughout; few faint clay films; very few fine and medium prominent black masses of iron and manganese accumulation; 70 percent chert gravel and 5 percent chert cobbles; moderately acid; clear smooth boundary.
Bt2--20 to 29 inches; brown (7.5YR 5/4) extremely gravelly clay; common fine red (2.5YR 4/6) masses or iron accumulation; weak very fine subangular structure; very firm; many fine medium and coarse roots throughout; common faint clay films; few fine and medium prominant black masses of iron and manganese accumulation; 50 percent chert gravel and 20 percent chert cobbles; slightly acid; gradual wavy boundary.
2Bt3--29 to 39 inches; red (2.5YR 4/6) and strong brown (7.5YR 4/6) gravelly clay; moderate very fine subangular structure; very firm; many coarse and common fine and medium roots throughout; common faint clay films; few fine prominent black masses of iron and manganese accumulation; 30 percent chert gravel; slightly acid; clear smooth boundary.
2Bt4--39 to 55 inches; reddish brown (5YR 4/4) and brown (7.5YR 5/4) very cobbly clay; moderate fine subangular blocky structure; very firm; few fine and very fine roots throughout; few distinct pale brown (10YR 6/3) clay films and common faint clay films; few fine prominant black masses of iron and manganese accumulation; 20 percent chert gravel and 30 percent chert cobbles; neutral; abrupt wavy boundary. (total thickness of Bt horizon is 29 to 42 inches)
R--55 inches; dolomite
TYPE LOCATION: Stone County Missouri; 1.5 miles NE of Gobbler Mountain; Reeds Spring USGS quadrangle; 400 feet north and 1,600 feet east of the southwest corner of section 36, T. 23 N., R. 23 W; 36 degrees, 38 minutes, 45 seconds north Latitude, 93 degrees, 22 minutes, 37 seconds west Longitude; UTM coordinates 466350m east and 4055455m north.
RANGE IN CHARACTERISTICS:
Depth to a lithic or paralithic contact: 40 to 60 inches
Surface Cover: 0 to 3 percent stones
Note: The particle size control section averages 35 to 50 percent clay and 35 to 60 percent rock fragments.
Note: Surface layers that are 6 inches or more thick have value higher than 3.5
A or Ap horizon
Hue: 7.5YR or 10YR
Value: 3 to 5
Chroma: 2 to 6
Fine-earth: silt loam
Total rock fragments: 5 to 65 percent, 5 to 65 percent gravel, 0 to 30 percent cobbles
Reaction: very strongly acid to neutral
E horizon
Hue: 10YR
Value: 5 to 7
Chroma: 2 to 4
Fine-earth: silt loam
Total rock fragments: 10 to 60 percent gravel
Reaction: very strongly acid to neutral
BA, AB, or BE horizons (where present)
Hue: 5YR to 10YR
Value: 3 to 5
Chroma: 3 to 6
Fine-earth: silt loam
Total rock fragments: 5 to 65 percent; 5 to 55 percent gravel and 0 to 35 percent cobbles
Reaction: very strongly acid to neutral
Bt horizon
Hue: 2.5YR to 10YR
Value: 3 to 5
Chroma: 3 to 6
Fine-earth: silt loam, silty clay loam, silty clay, or clay
Total rock fragments: 15 to 75 percent; 5 to 75 percent gravel and 0 to 45 percent cobbles
Reaction: strongly acid to slightly acid
2Bt horizon
Hue: 2.5YR to 10YR
Value: 3 to 6
Chroma: 3 to 8
Fine-earth: silty clay loam, clay loam, silty clay, or clay
Total rock fragments: 5 to 75 percent; 0 to 75 percent gravel, 0 to 45 percent cobbles, and 0 to 30 percent stones
Reaction: strongly acid to slightly alkaline
2C horizon (where present)
Hue: 2.5Y
Value: 7
Chroma: 2
Fine-earth: silt, silt loam
Total rock fragments: 50 to 75 percent gravel and cobbles
COMPETING SERIES: This is Sonsac series. Sonsac soils are 20 to 40 inches to a lithic contact.
GEOGRAPHIC SETTING: Gobbler soils are on gently sloping to steep ridge tops and side slopes and on structural benches. Slopes range from 3 to 35 percent. These soils formed in residuum weather from cherty limestone and dolomite. The mean annual temperature varies from 54 to 57 degrees F. The mean annual precipitation varies from 38 to 48 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Alred, Britwater, Gasconade, Hailey, Knobby, Moko, Sonsac, Ocie, and Rueter soils. Alred and Ocie soils have a loamy-skeletal over clayey particle size class. Britwater soils have a fine-loamy particle size family and are on terraces below the Gobbler soils. Gasconade, Knobby, and Moko soils are less than 20 inches to bedrock. Hailey and Rueter soils have a loamy-skeletal particle size family. Sonsac soils are 20 to 40 inches to bedrock. Alred, Gasconade, Sonsac, and Ocie soils are on ridge tops, side slopes, and structural benches. Hailey and Rueter soils are on side slopes at higher elevations. Moko and Knobby soils are on knobs and south and west facing slopes.
DRAINAGE AND PERMEABILITY: Well drained, medium to high runoff, moderate permeability. Saturated hydraulic conductivity is moderately high.
USE AND VEGETATION: These soils are mainly forested. Some areas are used for pasture or hay. Native vegetation is mixed hardwoods.
DISTRIBUTION AND EXTENT: The Ozarks region of Missouri and possibly Arkansas (MLRA 116A). 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:
1) Ochric epipedon - from 0 to 13 inches (A, E, and BE horizons).
2) Argillic horizon - from a depth of 13 to 55 inches (Bt1, Bt2, 2Bt3, and 2Bt4 horizons).
ADDITIONAL DATA: University of Missouri Soil Characterization Laboratory Pedon number M9320943.
In Missouri these soils are mapped primarily on Mississippian and Ordovician geology.