LOCATION SCOTTSBURG IN

Established Series
Rev. BGN
11/2021

SCOTTSBURG SERIES

The Scottsburg series consists of very deep, moderately well drained soils that formed in loess, loamy slope alluvium, and the underlying residuum from black shale. They are moderately deep to a layer with fragic soil properties. Scottsburg soils are on strath terraces within dissected till plains. Slope ranges from 0 to 6 percent. Mean annual precipitation is about 1092 mm (43 inches), and mean annual temperature is about 12 degrees C (54 degrees F).

TAXONOMIC CLASS: Fine-silty, mixed, semiactive, mesic Aquic Hapludults

TYPICAL PEDON: Scottsburg silt loam, on a 3 percent slope in a cultivated field at an elevation of about 175 meters (575 feet) above MSL. (Colors are for moist soil unless otherwise stated).

Ap--0 to 20 cm (0 to 8 inches); 80 percent brown (10YR 4/3) and 20 percent yellowish brown (10YR 5/6) silt loam, pale brown (10YR 6/3) and very pale brown (10YR 7/4) dry; weak medium subangular blocky structure parting to moderate medium granular; friable; common very fine roots; strongly acid; abrupt smooth boundary. [15 to 25 cm (6 to 10 inches) thick]

Bt1--20 to 48 cm (8 to 19 inches); yellowish brown (10YR 5/6) silt loam; moderate medium subangular blocky structure; friable; few fine roots; common distinct strong brown (7.5YR 4/6) clay films on faces of peds; common distinct brown (10YR 4/3) organic coatings in root channels and pores; strongly acid; gradual wavy boundary.

Bt2--48 to 69 cm (19 to 27 inches); yellowish brown (10YR 5/6) silty clay loam; moderate medium subangular blocky structure; friable; few very fine roots; common distinct dark yellowish brown (10YR 4/6) clay films on faces of peds; very strongly acid; clear wavy boundary.

Bt3--69 to 79 cm (27 to 31 inches); yellowish brown (10YR 5/6) silty clay loam; weak medium subangular blocky structure; friable; few very fine roots; common distinct dark yellowish brown (10YR 4/6) clay films on faces of peds; common fine distinct brown (10YR 5/3) iron depletions in the matrix; very strongly acid; clear wavy boundary. [Combined thickness of the Bt horizon is 36 to 71 cm (4 to 28 inches).]

2Btx1--79 to 109 cm (31 to 43 inches); brown (10YR 5/3) silty clay loam; moderate coarse prismatic structure parting to moderate medium subangular blocky; firm; few very fine roots between peds; common distinct grayish brown (10YR 5/2) clay films on vertical faces of peds; common fine prominent strong brown (7.5YR 5/6) and common fine distinct yellowish brown (10YR 5/6) masses of oxidized iron in the matrix; 4 percent gravel; 45 percent brittle; extremely acid; gradual wavy boundary

2Btx2--109 to 135 cm (43 to 53 inches); dark yellowish brown (10YR 4/6) silty clay loam; moderate coarse prismatic structure parting to moderate coarse subangular blocky; firm; many distinct gray (10YR 5/1) clay films on vertical faces of peds; common fine iron-manganese concretions; few fine prominent grayish brown (10YR 5/2) iron depletions in the matrix; 3 percent gravel; 45 percent brittle; extremely acid; clear wavy boundary. [Combined thickness of the 2Btx horizon is 33 to 66 cm (13 to 26 inches).]

3BCg--135 to 155 cm (53 to 61 inches); grayish brown (10YR 5/2) parachannery silty clay; weak thin platy structure; firm; common medium prominent yellowish brown (10YR 5/6) and many medium prominent strong brown (7.5YR 5/6) masses of oxidized iron in the matrix; 20 percent parachanners (shale); extremely acid; clear wavy boundary. [10 to 41 cm (4 to 16 inches) thick]

3Cr--155 to 170 cm (61 to 67 inches); very dark grayish brown (10YR 3/2) and brown (7.5YR 4/4) weathered shale, with fractures 0.3 to 1 cm (1/8 to 1/2 inch) thick and 5 to 25 cm (2 to 10 inches) in length; extremely acid; clear wavy boundary. [10 to 61 cm (4 to 24 inches) thick]

3R--170 cm (67 to 80 inches); very dark gray (5YR 3/1) very strongly cemented, fissile black shale.

TYPE LOCATION: Scott County, Indiana; 570 feet east and 570 feet north of the southwest corner of section 28, T. 4 N., R. 7 E.; USGS Crothersville, Indiana topographic quadrangle; lat. 38 degrees 45 minutes 08.249 seconds N. and long. 085 degrees 45 minutes 21.064 seconds W.; UTM Zone 16, 608109.023 easting and 4290023.885 northing, NAD 83.

RANGE IN CHARACTERISTICS:
Depth to the base of the argillic horizon: 122 to 152 cm (48 to 60 inches)
Depth to a horizon with fragic soil properties: 61 to 91 cm (24 to 36 inches)
Depth to bedrock (paralithic contact): 152 to 203 cm (60 to 72 inches)
Depth to bedrock (lithic contact): 163 to 203 cm (64 to 80 inches)
Particle-size control section: averages 24 to 30 percent clay and 8 to 15 percent sand
Rock fragments: of mixed lithology

Ap horizon:
Hue: of 10YR
Value: 4 or 5
Chroma: 3 to 6
Texture: silt loam
Clay content: 12 to 24 percent
Sand content: 8 to 20 percent
Reaction: very strongly acid to neutral

A horizon, where present:
Hue: of 10YR
Value: 4
Chroma: 3 or 4
Texture: silt loam
Clay content: 12 to 20 percent
Sand content: 8 to 20 percent
Reaction: very strongly acid or very strongly acid

Bt horizon:
Hue: 10YR
Value: 5 or 6
Chroma: 4 to 6
Tezture: silt loam or silty clay loam
Clay content: 24 to 30 percent
Sand content: 8 to 15 percent
Reaction: very strongly acid or strongly acid, and the upper part ranges to slightly acid in limed areas

2Btx horizon:
Hue: 7.5YR or 10YR
Value: 4 to 6
Chroma: 3 to 8 with redox depletions
Texture: silt loam or silty clay loam
Clay content: 24 and 34 percent
Sand content: 12 to 18 percent
Percent brittleness: 30 to 60 percent
Reaction: extremely acid or very strongly acid

3BC or 3BCg horizon:
Hue: 7.5YR or 10YR
Value: 4 or 5
Chroma: 2 to 8
Texture: parachannery silty clay loam or parachannery silty clay
Parachanners content: 15 to 34 percent
Clay content: 35 and 55 percent
Sand content: 2 to 8 percent
Reaction: extremely acid or very strongly acid

3Cr or 3C horizon:
Hue: 7.5YR or 10YR
Value: 2 to 4
Chroma: 1 to 4

COMPETING SERIES: These are the Berea, Hibler, Leipsic (T), Liverpool, and Morehead series. None of these soils have horizons with fragic soil properties within the series control section.

GEOGRAPHIC SETTING: Scottsburg soils are on strath terraces within dissected till plains. They are on treads. Slope ranges from 0 to 6 percent. The soils formed in 51 to 102 cm (20 to 40 inches) of loess, loamy slope alluvium, and the underlying residuum from black shale. The shale is from the New Albany Formation, Devonian System. Mean annual precipitation ranges from 1016 to 1143 mm (40 to 45 inches). Mean annual temperature ranges from 11 to 14 degrees C (51 to 57 degrees F).

GEOGRAPHICALLY ASSOCIATED SOILS: These are the moderately well drained Blocher, Deputy, and Jennings soils, the well drained Cincinnati and Trappist soils, and the somewhat poorly drained Whitcomb soils. Blocher and Deputy soils do not have a horizon with fragic soil properties in the series control section. Cincinnati and Jennings soils have a fragipan in the series control section. Blocher, Cincinnati, and Jennings soils are on higher lying back slopes and shoulders of till plains. Deputy soils are on similar landform positions as the Scottsburg soils. The moderately deep Trappist soils are on risers of strath terraces. Whitcomb soils are on treads of strath terraces.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Moderately well drained. The depth to the top of a perched seasonal high water table ranges from 46 to 91 cm (1.5 to 3 feet) between December and April in normal years. The potential for surface water runoff is low or medium. Saturated hydraulic conductivity is moderately high or high above the horizon with fragic soil properties and low to moderately high in and below this horizon. Permeability is moderate above the horizon with fragic soil properties and slow or very slow in and below this horizon.

USE AND VEGETATION: Most areas are being used to grow cultivated crops, mainly corn and soybeans. A few areas are used for growing small grain, mainly wheat. A few areas are used hay or pasture, or are in woodland. Native vegetation is mixed hardwood forest.

DISTRIBUTION AND EXTENT: MLRA 114A in southeastern Indiana. This series is of small extent.

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

SERIES ESTABLISHED: Scott County, Indiana, 1995.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: 0 to 20 cm (8 inches) (Ap horizon).
Argillic horizon: 20 to 135 cm (8 to 53 inches) (Bt1, Bt2, Bt3, 2Btx1, 2Btx2 horizons).
Redoximorphic features: 79 to 155 cm (31 to 61 inches).
Fragic soil properties: 79 to 135 cm (31 to 53 inches) (Btx1, Btx2 horizons).
Paralithic contact: at 155 cm (61 inches) (Cr horizon).
Lithic contact: at 170 cm (67 inches) (R horizon).

This series would classify as Fragic Oxyaquic Hapludults, but currently no such subgroup exists in the Hapludults great group. The semiactive CEC class is assigned to this series, but this soil borders on the semiactive and active groups.

ADDITIONAL DATA: Lab data is available for the typical pedon S87IN-143-001 at the National Soil Survey Lab, Lincoln, NE.

National Cooperative Soil Survey
U.S.A.