LOCATION HATTON MOEstablished Series
The Hatton series consists of very deep, moderately well drained, very slowly permeable soils that formed in loess and silty pedisediments that are underlain by weathered glacial till. These soils are on narrow rounded ridgetops and have slopes of 2 to 9 percent. Mean annual temperature is 55 degrees F, and mean annual precipitation is 38 inches.
TAXONOMIC CLASS: Fine, smectitic, mesic Oxyaquic Vertic Hapludalfs
TYPICAL PEDON: Hatton silt loam - on a 4 percent convex slope in pasture. (Colors are for moist soil unless otherwise stated.)
A--0 to 3 inches; dark grayish brown (10YR 4/2) silt loam, grayish brown (10YR 5/2) dry; weak fine subangular blocky structure; friable; many very fine and common fine roots; moderately acid; abrupt smooth boundary.
E--3 to 6 inches; brown (10YR 5/3) silt, pale brown (10YR 6/3) dry; weak fine platy structure; very friable; common very fine and fine roots; common dark grayish brown (10YR 4/2) worm casts and dark yellowish brown (10YR 4/6) patches; common silt coats and common managanese or iron-manganese stains on faces of peds; common iron-manganese concretions throughout; moderately acid; clear smooth boundary. (Combined thickness of the A and E horizons is 6 to 12 inches.)
Bt1--6 to 12 inches; yellowish brown (10YR 5/4) silty clay loam; weak fine subangular blocky structure; firm; common fine roots; common faint dark yellowish brown (10YR 4/4) clay films on faces of peds; common silt coats on faces of peds; common fine faint brown (10YR 5/3) iron depletions in the matrix; common manganese or iron-manganese stains on faces of peds and common iron-manganese concretions throughout; very strongly acid; clear smooth boundary.
Bt2--12 to 25 inches; dark yellowish brown (10YR 4/4) silty clay; moderate medium subangular blocky structure parting to moderate fine subangular blocky; very firm; few very fine and fine roots; many distinct yellowish brown (10YR 5/4) clay films on faces of peds; common silt coats on faces of peds; common fine distinct brown (10YR 5/3) iron depletions in the matrix; common iron and manganese stains and concretions throughout; extremely acid; clear smooth boundary.
Bt3--25 to 32 inches; yellowish brown (10YR 5/4) silty clay; moderate medium subangular blocky structure parting to weak fine subangular blocky; very firm; few very fine and fine roots; common distinct brown (10YR 4/3) clay films on faces of peds; common silt coats on faces of peds; common medium distinct light brownish gray (10YR 6/2) iron depletions in the matrix; common manganese or iron-manganese stains on faces of peds and common iron-manganese concretions throughout; extremely acid; clear smooth boundary. (Combined thickness of the Bt horizons is 12 to 30 inches.)
Btx--32 to 48 inches; dark yellowish brown (10YR 4/4), grayish brown (10YR 5/2) and yellowish brown (10YR 5/4) silty clay loam; weak medium subangular blocky structure; very firm; brittle; common distinct brown (10YR 4/3) clay films on faces of peds; common silt coats on faces of peds; common manganese or iron-manganese stains on faces of peds and common iron-manganese concretions throughout; very strongly acid; clear smooth boundary. (12 to 35 inches thick)
2B't--48 to 60 inches; dark yellowish brown (10YR 4/4), grayish brown (10YR 5/2) and yellowish brown (10YR 5/4) silt loam; moderate fine prismatic structure parting to weak fine subangular blocky; very firm; common distinct brown (10YR 4/3) clay films on faces of peds; common silt coats on faces of peds; common manganese or iron-manganese stains on faces of peds and common iron-manganese concretions throughout; moderately acid. (0 to 30 inches thick)
TYPE LOCATION: Boone County, Missouri; about 1 mile north of Rucker; approximately 200 feet south and 400 feet west of the northeast corner of sec. 6, T. 51 N., R. 13 W.; Harrisburg Quadrangle; UTM Zone 15, UTM Easting 550730, UTM Northing 4344420.
RANGE IN CHARACTERISTICS: Depth to the base of the argillic is 30 to more than 60 inches and the solum thickness ranges from 40 to more than 80 inches. Depth to horizons that have fragic characteristics ranges from 27 to 38 inches.
The A horizon has hue of 10YR; value of 3 or 4, 5 or 6 dry; and chroma of 2 or 3. The Ap horizon has hue of 10YR; value of 4 or 5, 6 or 7 dry; and chroma of 2 or 3. It is silt loam. The E horizon has hue of 10YR, value of 5 or 6, and chroma of 3 or 4. It is silt or silt loam. Reaction of the A and E horizons is commonly strongly acid or moderately acid and ranges to neutral where limed.
The Bt horizon has hue of 10YR or 7.5YR, value of 4 or 5, and chroma of 3 to 6. It is silty clay loam or silty clay and the upper 20 inches of the argillic horizon average between 35 and 48 percent clay, but some subhorizons range up to as much as 55 percent. The Bt horizon is strongly acid to extremely acid.
The Btx horizon has hue of 10YR or 2.5Y, value of 4 to 6, and chroma of 2 to 4. It is silty clay loam or silt loam. Reaction is strongly acid to extremely acid. Some pedons have E' horizons above the 2Btx horizons. Expression of the brittleness and consistence of the fragic horizons range from moderate to weak.
The 2B't horizon has hue of 7.5YR to 2.5Y, value of 4 to 6, and chroma of 2 to 6 and redox features with chroma of 2 or less. It is silty clay loam or silt loam. Reaction is strongly acid or moderately acid.
The 2C horizon, where present, has hue of 5YR, 7.5YR, 10YR or 2.5Y; value of 4 to 6; and chroma of 2 to 4. It is silt loam, silty clay loam, or clay loam. Reaction is strongly acid or moderately acid. Rock fragment content ranges from 2 to about 5 percent and sand content ranges from about 10 to 20 percent of fine sand or coarser.
COMPETING SERIES: This is the Kilkenny Series. Kilkenny soils have free carbonates at depths of less than 60 inches and do not have horizons with fragic characteristics.
GEOGRAPHIC SETTING: Hatton soils are on narrow rounded ridgetops of 2 to 9 percent slopes. They formed in 27 to 50 inches of loess and silty pedisediments that are underlain by weathered glacial till. The mean annual temperature varies from 49 to 57 degrees F, and mean annual precipitation varies from 35 to 43 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the somewhat poorly drained
Marion and
Mexico soils, the moderately well drained
Keswick,
Weller, and
Winfield soils and the well drained
Lindley soils. All of these soils lack horizons that have fragic characteristics. The Marion, Mexico, and Weller soils are upslope from the Hatton soils and Keswick and Lindley soils are downslope.
DRAINAGE AND PERMEABILITY: Moderately well drained. Runoff potential is medium. Permeability is slow above the fragic horizon and very slow in the fragic horizon.
USE AND VEGETATION: Most of these soils are forested or are used for pasture. The areas that are cultivated are cropped to corn and small grains. Some are used for hay. Native vegetation is dominantly white oak forest.
DISTRIBUTION AND EXTENT: Northeastern Missouri. The soil is moderately extensive; about 54,000 acres.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: Boone County, Missouri, 1948.
REMARKS: Diagnostic horizons and features in this pedon are: Ochric epipedon- the zone from the soil surface to a depth of 6 inches (Ap and E horizons); Argillic horizon-the zone from 6 to 60 inches (Bt1, Bt2, Bt3, Btx and 2B't horizons); Fragic soil properties-the zone from 32 to 48 inches (Btx horizon)
These soils were reclassified as Oxyaquic Vertic Hapludalfs from Typic Hapludalfs and the type location was moved in 1998.