LOCATION SHINROCK OH

Established Series
Rev. DRM-JAG-RAR
11/2021

SHINROCK SERIES

The Shinrock series consists of very deep, moderately well drained soils on lake plains. They formed in silty and clayey glaciolacustrine sediments. Slope ranges from 0 to 20 percent. Mean annual precipitation is about 864 mm (34 inches), and mean annual air temperature is about 11 degrees C (51 degrees F).

TAXONOMIC CLASS: Fine, illitic, mesic Aquic Hapludalfs

TYPICAL PEDON: Shinrock silt loam, 2 to 6 percent slopes, at an elevation of 273 meters (895 feet) above mean sea level. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 23 cm (0 to 9 inches); brown (10YR 4/3) silt loam, pale brown (10YR 6/3) dry; weak fine subangular blocky structure; friable; common fine and very fine roots; moderately acid; abrupt smooth boundary. [15 to 25 cm (6 to 10 inches) thick]

Bt1--23 to 30 cm (9 to 12 inches); yellowish brown (10YR 5/4) silty clay loam; moderate medium subangular blocky structure; firm; few fine and very fine roots; few faint dark yellowish brown (10YR 4/4) clay films on faces of peds; common distinct dark yellowish brown (10YR 4/4) coatings on faces of peds; few medium faint brown (10YR 5/3) iron depletions in the matrix; common medium distinct yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; strongly acid; clear wavy boundary.

Bt2--30 to 63 cm (12 to 25 inches); yellowish brown (10YR 5/4) silty clay; moderate medium and coarse angular blocky structure; firm; few fine roots; few faint brown (10YR 5/3) clay films on faces of peds; common distinct grayish brown (10YR 5/2) coatings on faces of peds; common medium distinct grayish brown (10YR 5/2) iron depletions in the matrix; common medium distinct yellowish brown (10YR 5/6) masses of iron accumulation in the matrix; few fine prominent black (N 2.5/) manganese oxide concretions in the matrix; strongly acid; gradual wavy boundary.

Bt3--63 to 94 cm (25 to 37 inches); olive brown (2.5Y 4/4) silty clay; moderate coarse subangular blocky structure; firm; few fine roots; few faint brown (10YR 5/3) clay films on faces of peds; common prominent gray (10YR 5/1) coatings on faces of peds; common medium distinct grayish brown (2.5Y 5/2) iron depletions in the matrix; few fine prominent black (N 2.5/) manganese oxide concretions in the matrix; moderately acid; clear wavy boundary. [Combined thickness of the Bt horizon is 25 to 89 cm (10 to 35 inches).]

C--94 to 152 cm (37 to 60 inches); light olive brown (2.5Y 5/4) silty clay loam; massive, with widely spaced vertical fractures; firm; common distinct grayish brown (2.5Y 5/2) coatings on vertical faces of fractures; common medium distinct light olive brown (2.5Y 5/6) masses of iron accumulation in the matrix; common medium distinct pale yellow (2.5Y 8/2) calcium carbonate nodules in the matrix; slightly effervescent; moderately alkaline.

TYPE LOCATION: Marion County, Ohio; about 1.7 miles northwest of Morral, in Salt Rock Township; 1240 feet east and 2150 feet south of the northwest corner of sec. 15, T. 4 S., R. 14 E.; USGS Morral, Ohio topographic quadrangle; lat. 40 degrees 41 minutes 47 seconds N. and long. 83 degrees 14 minutes 31 seconds W., NAD 27.

RANGE IN CHARACTERISTICS:
Depth to the base of the argillic horizon: 51 to 114 cm (20 to 45 inches)
Thickness of the solum: 51 to 140 cm (20 to 55 inches)
Depth to carbonates: 51 to 114 cm (20 to 45 inches)
Particle-size control section: averages 35 to 45 percent clay
Rock fragment content: typically absent

Ap horizon:
Hue: 10YR
Value: 4 or 5 (6 or 7 dry)
Chroma: 2 or 3
Texture: silt loam and includes silty clay loam in some eroded pedons
Reaction: moderately acid to neutral

A horizon, where present:
Hue: 10YR
Value: 2 or 3 (4 or 5 dry)
Chroma: 1 or 2
Texture: silt loam
Reaction: moderately acid to neutral

Some pedons have a BA, BE, B/E, or E horizon.

Bt horizon:
Hue: 7.5YR, 10YR, or 2.5Y
Value: 4 or 5
Chroma: 3 to 6
Texture: silty clay loam, silty clay, or clay
Reaction: strongly acid to neutral in the upper part and moderately acid to slightly alkaline in the lower part

Some pedons have a BC horizon.

C horizon:
Hue: 7.5YR, 10YR, or 2.5Y
Value: 4 or 5
Chroma: 2 to 4
Texture: variable but mainly is silty clay loam or silt loam with thin strata of silty clay, silt, fine sandy loam, or very fine sand
Reaction: slightly alkaline or moderately alkaline

COMPETING SERIES: These are the Cardington, Ellsworth, Geeburg, Glynwood, Mortimer, Pert, and Wyatt series. Cardington and Ellsworth soils have rock fragments in the lower part of the series control section. Geeburg and Wyatt soils have dominant textures with more than 40 percent clay in the lower part of the series control section. Glynwood and Mortimer soils have a densic contact within the series control section. Pert soils formed in till and are not stratified in the lower part of the series control section.

GEOGRAPHIC SETTING: Shinrock soils are on lake plains of late Wisconsin age that have been dissected by modern stream valleys. Slope gradient typically is 2 to 10 percent but ranges from 0 to 20 percent. The soils formed in silty and clayey glaciolacustrine sediments. Mean annual precipitation ranges from 686 to 1067 mm (27 to 42 inches). Mean annual air temperature ranges from 7 to 13 degrees C (45 to 55 degrees F). Frost-free period is 140 to 180 days. Elevation is 183 to 305 meters (600 to 1000 feet) above mean sea level.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Del Rey, Kibbie, Lenawee, Milford, and Saylesville soils. Kibbie soils are in areas of the lake plain that contain more sand and less clay. Del Rey, Lenawee, Milford, and Saylesville soils are in a toposequence with Shinrock soils. Del Rey soils are somewhat poorly drained and are on lower, nearly level areas or on slopes along drainageways. Lenawee and Milford soils are poorly drained or very poorly drained and are in depressions or on broad, flat areas of the lake plain. Saylesville soils are well drained and are on higher topographic positions or on steeper slopes along drainageways.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Moderately well drained. The depth to the top of an intermittent perched high water table ranges from 30 to 61 cm (1 to 2 feet) between December and May in normal years. The potential for surface runoff is low to very high. Saturated hydraulic conductivity is moderately high. Permeability is moderately slow in the solum and moderate or moderately slow in the substratum.

USE AND VEGETATION: Most areas are cultivated. Corn, small grain, and vegetables are the principal crops. Steeper areas are in pasture or in woodland, dominantly of hickory and oak. Native vegetation is mixed hardwoods.

DISTRIBUTION AND EXTENT: Central, western, and northern Ohio; MLRAs 99, 111A, 111B, 111E, 124 and 139. The type location is in MLRA 111B. The series is of moderate extent.

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

SERIES ESTABLISHED: Erie County, Ohio, 1967.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: from the surface to a depth of 23 cm (Ap horizon).
Argillic horizon: from a depth of 23 to 94 cm (Bt horizon).
Aquic conditions: redox features in horizons between the depths of 30 and 94 cm.

A till substratum phase with till below 152 cm (60 inches) is recognized.

National Cooperative Soil Survey
U.S.A.