LOCATION GRACE MI

Established Series
Rev. JOW-WEF-GDW
08/2012

GRACE SERIES

The Grace series consists of very deep, moderately well drained soils formed in stratified loamy glaciofluvial deposits on lake plains, outwash plains, and deltas. Slope ranges from 0 to 12 percent. Mean annual precipitation is about 762 mm (30 inches), and mean annual temperature is about 6.1 degrees C (43 degrees F).

TAXONOMIC CLASS: Coarse-silty, mixed, semiactive, frigid Oxyaquic Glossudalfs

TYPICAL PEDON: Grace very fine sandy loam, on a west-facing, 1 percent slope in a cultivated field. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 23 cm (9 inches); very dark grayish brown (10YR 3/2) very fine sandy loam, light brownish gray (10YR 6/2) dry; weak medium subangular blocky structure; very friable; neutral; abrupt smooth boundary. [15 to 25 cm (6 to 10 inches) thick]

B/E--23 to 41 cm (9 to 16 inches); dark yellowish brown (10YR 4/4) very fine sandy loam (Bt); thin coatings and interfingering of pale brown (10YR 6/3) loamy very fine sand (E); moderate medium subangular blocky structure parting to moderate medium platy; friable; neutral; clear wavy boundary. [13 to 30 cm (5 to 12 inches) thick]

Bt--41 to 48 cm (16 to 19 inches); brown (7.5YR 4/4) very fine sandy loam; moderate medium subangular blocky structure; friable; few faint brown (7.5YR 4/4) clay films on faces of peds; slightly alkaline; gradual wavy boundary. [8 to 25 cm (3 to 10 inches) thick]

B/C--48 to 91 cm (19 to 36 inches); brown (7.5YR 4/4) very fine sandy loam (Bt) tonguing into light yellowish brown (10YR 6/4) very fine sandy loam (C); moderate coarse subangular blocky structure; friable; slightly effervescent; slightly alkaline; diffuse wavy boundary. [20 to 51 cm (8 to 20 inches) thick]

C--91 to 203 cm (36 to 80 inches); light brown (7.5YR 6/4) stratified very fine sandy loam and loamy very fine sand; very fine to very coarse platy fragments; very friable; few medium distinct reddish yellow (7.5YR 6/6) masses of oxidized iron; strongly effervescent; moderately alkaline.

TYPE LOCATION: Presque Isle County, Michigan; about 3 miles northeast of the village of Ocqueoc; 800 feet south and 300 feet east of the northwest corner, sec. 2, T. 35 N., R. 3 E., south part of Ocqueoc Township; USGS Ocqueoc, MI topographic quadrangle; lat. 45 degrees 26 minutes 55 seconds N. and long 84 degrees 2 minutes 45 seconds W.

RANGE IN CHARACTERISTICS:
Thickness of the solum: 51 to 127 cm (20 to 50 inches)
Argillic horizon: contains less than 15 percent fine sand or coarser
Reaction: slightly acid to moderately alkaline in the solum

Ap horizon:
Hue: 10YR
Value: 2 to 4
Chroma: 1 to 3
Texture: dominantly very fine sandy loam, but includes silt loam, fine sandy loam, and loamy very fine sand
Rock fragment content: 0 to 2 percent gravel

A horizon, where present:
Thickness: 2 to 10 cm (1 to 4 inches) thick
Hue: 10YR
Value: 2 to 4
Chroma: 1 to 3
Texture: dominantly very fine sandy loam, but includes silt loam, fine sandy loam, and loamy very fine sand
Rock fragment content: 0 to 2 percent gravel

B/E horizon: consists of E material surrounding remnants of the Bt horizon or interfingers of E material extending into the Bt horizon

E part of the B/E horizon:
Hue: 7.5YR or 10YR
Value: 5 to 7
Chroma: 2 or 3
Texture: loamy very fine sand or fine sandy loam
Rock fragment content: 0 to 2 percent gravel

Bt part of the B/E horizon and the Bt horizon:
Hue: 5YR to 10YR
Value: 3 or 4
Chroma: 3 to 6
Texture: very fine sandy loam, silt, or silt loam
Rock fragment content: 0 to 2 percent gravel

C horizon:
Hue: 7.5YR or 10YR
Value: 4 to 7
Chroma: 3 to 6
Texture: stratified silt loam, very fine sandy loam, loamy very fine sand, or very fine sand
Rock fragment content: 0 to 2 percent gravel
Reaction: slightly alkaline or moderately alkaline

COMPETING SERIES: There are no other series in this family.

GEOGRAPHIC SETTING: The Grace soils are on lake plains, outwash plains, and deltas of Wisconsinan age. Slope ranges from 0 to 12 percent. These soils formed in stratified loamy glaciofluvial deposits. Mean annual precipitation ranges from 686 to 813 mm (27 to 32 inches). Mean annual temperature ranges from 5.0 to 7.2 degrees C (41 to 45 degrees F).

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Moltke, Ingalls, Ocqueoc, and Glawe soils. The somewhat poorly drained Moltke soils and the poorly drained or very poorly drained Glawe soils are in the same drainage sequence. The somewhat poorly drained Ingalls soils and the well drained or moderately well drained Ocqueoc soils are coarser textured and occur on similar landscape positions.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Moderately well drained. Depth to the top of a seasonal high water table ranges from 91 to 152 cm (3 to 5 feet) between October and May in normal years. Potential for surface runoff is negligible to medium. Saturated hydraulic conductivity is moderate.

USE AND VEGETATION: Most areas of this soil have been cleared and are used as cropland. Corn, dry beans, potatoes, and hay are the principal crops. Some areas are in pasture or woodland.

DISTRIBUTION AND EXTENT: MLRA 94C in northern lower peninsula of Michigan and eastern upper peninsula of Michigan. This series is of small extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: AMHERST, MASSACHUSETTS

SERIES ESTABLISHED: Presque Isle County, Michigan, 1989.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: from the surface to a depth of 23 cm (9 inches) (Ap horizon).
Argillic horizon: from a depth of 23 to 48 cm (9 to 19 inches) (Bt part of B/E horizon, Bt horizon).
Oxyaquic features: redox concentrations present in horizons below a depth of 91 cm (36 inches).

The well drained phase is no longer in the concept of this series.

National Cooperative Soil Survey
U.S.A.