LOCATION CORSAIR                 MI

Established Series
Rev. EPJ-JDR-MLK
08/2012

CORSAIR SERIES

The Corsair series consists of very deep, somewhat poorly drained soils that formed in lacustrine deposits on lake plains. Slope ranges from 0 to 3 percent. Mean annual precipitation is about 737 mm (29 inches), and the mean annual temperature is about 6.7 degrees C (44 degrees F).

TAXONOMIC CLASS: Coarse-loamy, mixed, semiactive, frigid Aquic Argiudolls

TYPICAL PEDON: Corsair very fine sandy loam, on a north-facing, 1 percent slope in a Christmas tree plantation. (Colors are for moist soil unless otherwise stated. When described on June 14, 1993 the soil was moist throughout.)

Ap--0 to 20 cm (8 inches); very dark grayish brown (10YR 3/2) very fine sandy loam, grayish brown (10YR 5/2) dry; weak fine and medium granular structure; friable, common very fine to medium roots; neutral; abrupt smooth boundary. [20 to 28 cm (8 to 11 inches) thick]

E/B--20 to 25 cm (8 to 10 inches); pale brown (10YR 6/3) fine sand (E), very pale brown (10YR 7/3) dry; occupies about 70 percent of the horizon surrounding yellowish brown (10YR 5/4) loamy fine sand (Bt); moderate medium subangular blocky structure; friable; common faint yellowish brown (10YR 5/4) clay bridges; neutral; clear broken boundary. [0 to 10 cm (4 inches) thick]

Bt--25 to 38 cm (10 to 15 inches); dark yellowish brown (10YR 4/4) fine sandy loam; moderate medium subangular blocky structure; friable; common faint dark yellowish brown (10YR 4/4) clay bridges; neutral; clear wavy boundary. [10 to 38 cm (4 to 15 inches) thick]

C--38 to 203 cm (15 to 80 inches); yellowish brown (10YR 5/4) stratified very fine sand, sand, and silt; weak thick platy structure; very friable; common medium distinct light brownish gray (10YR 6/2) iron depletions; common medium prominent yellowish brown (10YR 5/8) masses of oxidized iron; strongly effervescent throughout; moderately alkaline.

TYPE LOCATION: Iosco County, Michigan; about 3 miles northeast of Tawas City; 100 feet south and 1,320 feet east of the northwest corner of sec. 15, T. 22 N., R. 7 E., Tawas Township; USGS Tawas City topographic quadrangle; lat. 44 degrees 18 minutes 29 seconds N. and long. 83 degrees 34 minutes 40 seconds W.

RANGE IN CHARACTERISTICS:
Depth to carbonates: 28 to 76 cm (11 to 30 inches)
Depth to redox depletions: 30 to 91 cm (12 to 36 inches)
Mean annual soil temperature: 7.2 to 8.3 degrees C (45 to 47 degrees F)

Ap horizon:
Value: 2 or 3, 4 or 5 dry
Chroma: 1 or 2, moist or dry

E part of E/B horizon:
Texture: fine sand or loamy fine sand

Bt horizon:
Hue: 5YR to 10YR
Value: 4 or 5
Chroma: 3 or 4
Texture: fine sandy loam, loam, or silt loam
Clay content: 10 to 18 percent
Rock fragment content: 0 to 10 percent

C horizon:
Hue: 5YR to 10YR
Value: 5 or 6
Chroma: 3 or 4
Texture: stratified sand, fine sand, very fine sand, silt, and very fine sandy loam; strata are 2.5 to 18 cm (1 to 7 inches) thick
Sand content: 40 to 80 percent fine and coarser sand (weighted average)
Rock fragment content: 0 to 10 percent gravel
Reaction: slightly alkaline or moderately alkaline

COMPETING SERIES: There are no other series in the same family.

GEOGRAPHIC SETTING: Corsair soils are on glacial lake plains. Slope ranges from 0 to 3 percent. These soils formed in stratified sandy and silty lacustrine deposits. Mean annual precipitation ranges from 711 to 762 mm (28 to 30 inches). Mean annual temperature ranges from 6.1 to 7.2 degrees C (43 to 45 degrees F). Frost-free period is 120 to 130 days. Elevation is 183 to 244 meters (600 to 800 feet) above mean sea level.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Manary, Tawas, and Sims soils. The somewhat poorly drained Manary soils have clayey subsoils and are on similar landscapes. The very poorly drained Tawas soils have a thick organic layer at the surface and are in depressions and along drainageways. The poorly drained or very poorly drained Sims soils have clayey subsoils and are in depressions and along drainageways.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat poorly drained. Depth to the top of a perched seasonal high water table ranges from 30 to 91 cm (1.0 to 3.0 feet) between October and May in normal years. Potential for surface runoff is low or medium. Saturated hydraulic conductivity is moderately high. Permeability is moderately slow.

USE AND VEGETATION: Most areas are in cropland and are used for small grains, corn, and hay. Some areas are forested or are idle. Native vegetation is hardwood forest.

DISTRIBUTION AND EXTENT: MLRA 94A in the northeastern lower peninsula of Michigan. The series is of small extent.

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

SERIES ESTABLISHED: Iosco County, Michigan, 1995.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
Mollic epipedon: from the surface to a depth of 20 cm (8 inches) (Ap horizon).
Glossic horizon: from a depth of 20 to 25 cm (8 to 10 inches) (E/B horizon).
Argillic horizon: from a depth of 25 to 38 cm (10 to 15 inches) (Bt horizon).
Aquic conditions: iron depletions present from 38 to 203 cm (15 to 80 inches) (C horizon).

ADDITIONAL DATA: Soil Interpretations Record MI0742.

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National Cooperative Soil Survey
U.S.A.