LOCATION EDENTON OH+IN

Established Series
Rev. NAM-DRM
11/2021

EDENTON SERIES

The Edenton series consists of moderately deep, well drained soils formed in till and the underlying residuum from clayey shale with thin strata of limestone, and in places a mantle of loess as much as 25 cm (10 inches) thick. Slope ranges from 2 to 50 percent. Mean annual precipitation is about 1016 mm (40 inches), and mean annual air temperature is about 12 degrees C (54 degrees) F.

TAXONOMIC CLASS: Fine, mixed, superactive, mesic Typic Hapludalfs

TYPICAL PEDON: Edenton silt loam, on a northeast-facing, eroded, 14 percent slope in a pasture. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 10 cm (0 to 4 inches); brown (10YR 5/3) silt loam; weak medium subangular blocky structure; friable; 8 percent rock fragments; moderately acid; clear smooth boundary. [10 to 25 cm (4 to 10 inches) thick]

Bt1--10 to 30 cm (4 to 12 inches); yellowish brown (10YR 5/6) clay loam; moderate medium subangular blocky structure; firm; few distinct brown (7.5YR 4/4) clay films on faces of peds; few medium prominent black (10YR 2/1) stains (iron and manganese oxides); 10 percent rock fragments; strongly acid; clear wavy boundary.

Bt2--30 to 51 cm (12 to 20 inches); yellowish brown (10YR 5/6) clay loam; moderate medium subangular blocky structure; firm; common distinct and few distinct dark yellowish brown (10YR 4/4) clay films on vertical and horizontal faces of peds, respectively; common medium prominent black (10YR 2/1) stains (iron and manganese oxides); 10 percent rock fragments; moderately acid; clear wavy boundary.

Bt3--51 to 66 cm (20 to 26 inches); yellowish brown (10YR 5/4) clay; common medium prominent yellowish brown (10YR 5/8) mottles; weak medium and coarse subangular blocky structure; firm; common distinct and few distinct dark yellowish brown (10YR 4/4) clay films on vertical and horizontal faces of peds, respectively; common medium distinct very dark brown (10YR 2/2) stains (iron and manganese oxides); 10 percent rock fragments; neutral; clear wavy boundary. [Combined thickness of the Bt horizon is 20 to 76 cm (8 to 30 inches).]

2BC--66 to 81 cm (26 to 32 inches); yellowish brown (10YR 5/4) silty clay; weak coarse subangular blocky structure; very firm; few fine distinct very dark brown (10YR 2/2) stains (iron and manganese oxides); light olive gray (5Y 6/2) vertical and horizontal stress surfaces; less than 2 percent rock fragments; slightly alkaline; abrupt smooth boundary. [0 to 25 cm (10 inches) thick]

2C--81 to 96 cm (32 to 38 inches); light olive brown (2.5Y 5/6) and dark yellowish brown (10YR 4/4) silty clay; weak coarse subangular blocky structure; very firm; few fine prominent very dark grayish brown (10YR 3/2) stains (iron and manganese oxides); light olive gray (5Y 6/2) and light olive brown (2.5Y 5/4) stress surfaces; less than 2 percent rock fragments; strongly effervescent; slightly alkaline; abrupt irregular boundary. [0 to 38 cm (15 inches) thick]

2Cr--96 cm (38 inches); interbedded calcareous shale and limestone.

TYPE LOCATION: Highland County, Ohio; 2.25 miles west-northwest of Belfast, in Jackson Township; west of Ohio State Route 73 on Peach Orchard Road to Smart Hill Lane, then 500 yards south and 75 feet east.

RANGE IN CHARACTERISTICS:
Thickness of the solum: 51 to 102 cm (20 to 40 inches)
Depth to a paralithic contact: 51 to 102 cm (20 to 40 inches)
Thickness of loess mantle: 0 to 25 cm (10 inches)
Depth to carbonates: 51 to 102 cm (20 to 40 inches)

Ap horizon:
Hue: 10YR
Value: 4 or 5
Chroma: 2 to 4
Texture: typically silt loam or loam, but ranges to clay loam or silty clay loam in eroded pedons
Rock fragment content: 2 to 14 percent glacial pebbles
Reaction: moderately acid to neutral

A horizon, where present:
Thickness: less than 10 cm (4 inches)
Hue: 10YR
Value: 3 or 4
Chroma: 2 or 3
Texture: silt loam or loam
Rock fragment content: 2 to 14 percent glacial pebbles
Reaction: moderately acid to neutral

E horizon, where present:
Hue: 10YR
Value: 5
Chroma: 2 or 3
Texture: loam or silt loam
Rock fragment content: 2 to 14 percent glacial pebbles
Reaction: very strongly acid to moderately acid

Bt horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 3 to 6
Texture: clay loam, silty clay loam, or clay
Rock fragment content: 2 to 14 percent glacial pebbles
Reaction: strongly acid to slightly acid

2BC or 2Bt horizon:
Hue: 10YR, 2.5Y, or 5Y
Value: 4 to 6
Chroma: 4 to 6
Texture: silty clay loam, clay loam, silty clay, or clay
Rock fragment content: 0 to 14 percent, mainly chert or limestone with some shale
Reaction: neutral or slightly alkaline

2C horizon:
Hue: 10YR, 2.5Y, or 5Y
Value: 4 or 5
Chroma: 3 to 6; but other colors occur as mottles and streaks in some pedons
Texture: silty clay loam, clay loam, clay, or silty clay
Rock fragment content: 0 to 14 percent, mainly chert or limestone with some shale; weathered fragments of limestone or shale comprise up to 50 percent or more of the volume of the 2C horizon in some pedons

2Cr horizon: interbedded calcareous shale and limestone

COMPETING SERIES: These are the Briggsville, Chrome, Eldean, Lamoille, Newnata, Paintcreek, Redbrush, Upshur, Woodsfield, and Wynn series. Briggsville, Eldean, Lamoille, Newnata, Paintcreek, Upshur, and Woodsfield soils do not have a paralithic contact within a depth of 102 cm (40 inches). Chrome and Redbrush (T) soils have a lithic contact within a depth of 102 cm (40 inches). Wynn soils have a loess mantle of more than 25 cm (10 inches) in thickness.

GEOGRAPHIC SETTING: Edenton soils are on gently sloping to steep uplands. Slope ranges from 2 to 50 percent. The soils formed in highly weathered Illinoian till and in the underlying olive-colored residuum from calcareous interbedded shale and limestone with a mantle of loess up to 25 cm (10 inches) thick in places. Some pedons are underlain by bedrock that is more than half limestone, and in these the contact approaches lithic. Mean annual precipitation ranges from 940 to 1067 mm (37 to 42 inches). Mean annual air temperature ranges from 11 to 13 degrees C (52 to 55 degrees F).

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Cincinnati, Eden, Fairmount, Grayford, Jessup, Lawshe, Loudon, Opequon, and Rossmoyne series. Cincinnati and Rossmoyne soils have fragipan horizons and commonly are on lesser slopes above Edenton soils. Eden soils lack glacial erratics and are on steeper slopes below Edenton soils. Fairmount and Opequon soils are shallow to bedrock dominated by limestone and are on steeper areas below Edenton soils. Grayford, Jessup, and Loudon soils have a thicker silty mantle and have bedrock at a depth of more than 102 cm (40 inches). Lawshe soils have a mollic epipedon and do not have glacial erratics in the solum. They are on colluvial foot slopes.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained. The potential for surface runoff is medium to high. Saturated hydraulic conductivity is moderately high or moderately low. Permeability is moderately slow or slow.

USE AND VEGETATION: Most of the Edenton soils are used for permanent pasture or woodland. Some Edenton soils are farmed where they are included in fields with other soils on lesser slopes. Native vegetation is hardwood forest.

DISTRIBUTION AND EXTENT: Southwestern Ohio and southern Indiana, and possibly in northern Kentucky; MLRA 114A. The series is of moderate extent, approximately 36,000 acres.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: AMHERST, MASSACHUSETTS

SERIES ESTABLISHED: Clermont County, Ohio, 1928.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: from the surface to a depth of 10 cm (Ap horizon).
Argillic horizon: from a depth of 10 to 66 cm (Bt horizon).
Paralithic contact: at 96 cm (top of the 2Cr horizon).

National Cooperative Soil Survey
U.S.A.