LOCATION ROLLAWAY MIEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, semiactive, nonacid, frigid Histic Humaquepts
TYPICAL PEDON: Rollaway muck - on a nearly level slope at an elevation of 710 feet. (Colors are for moist soil unless otherwise noted. Described on October 3, 1990.)
Oa--0 to 9 inches; very dark gray (10YR 3/1) broken face and black (10YR 2/1) rubbed muck; about 30 percent fiber, 5 percent rubbed; weak fine granular structure; friable; many fine roots; about 15 percent mineral; slightly acid; abrupt smooth boundary. (8 to 14 inches thick)
A--9 to 13 inches; black (10YR 2/1) silt loam; very dark gray (10YR 3/1) dry; moderate medium subangular blocky structure; friable; many fine roots; common fine prominent yellowish red (5YR 4/6) and dark reddish brown (5YR 3/4) masses of iron accumulation; slightly acid; abrupt smooth boundary. (0 to 6 inches thick)
Cg1--13 to 18 inches; dark gray (10YR 4/1) silt loam; weak medium platy structure; friable; common fine prominent strong brown (7.5YR 4/6) masses of iron accumulation; neutral; abrupt smooth boundary.
Cg2--18 to 55 inches; stratified dark grayish brown (10YR 4/2) and black (10YR 2/1) loamy sand and sandy loam; massive; friable; neutral; abrupt smooth boundary. (combined thickness of the Cg horizons is 22 to 40 inches)
2Cg3--55 to 80 inches; brown (7.5YR 5/2) silty clay; massive; firm; strongly effervescent throughout; moderately alkaline.
TYPE LOCATION: Alcona County, Michigan; about 3 miles north of Harrisville; 140 feet south and 2,210 feet west of the northeast corner section 22, T. 27 N., R. 9 E.; USGS Harrisville topographic quadrangle; lat. 44 degrees 43 minutes 43 seconds N. and long. 83 degrees 19 minutes 53 seconds W.; Haynes Township.
RANGE IN CHARACTERISTICS: The depth to the clayey substratum and depth to calcium carbonates range from 40 to 60 inches. Mean annual soil temperature is 45 to 47 degrees F.
The particle-size control section averages 6 to 18 percent clay and 40 to 80 percent sand..
The Oa horizon has hue of 7.5YR, 10YR or is neutral, value of 2 or 3, and chroma of 0 or 1. Reaction is moderately acid to neutral.
The A horizon has hue of 10YR or is neutral, value of 2 or 3, and chroma of 0 or 1. Reaction is slightly acid or neutral.
The C horizons have hue of 7.5YR, 10YR or 5Y, value of 2 to 6, and chroma of 1 to 3. Texture is silt loam or stratified sand and sandy loam. Reaction is slightly acid to moderately alkaline.
The 2C horizon texture is silty clay or clay. Clay content is 40 to 60 percent.
COMPETING SERIES: These are the Waucedah and Witbeck series. Waucedah and Witbeck soils do not have a clayey substratum.
GEOGRAPHIC SETTING: Rollaway soils are on nearly level floodplains of streams. They are flooded at some time in most years. Slopes are 0 to 2 percent. These soils formed in stratified sandy to silty alluvium over clayey lacustrine sediments. Elevations are 600 to 800 feet. Mean annual precipitation is about 27 to 30 inches and the mean annual temperature is about 43 to 45 degrees F. The frost free period is 70 to 130 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Cublake, Allendale, and Wakeley soils. The moderately well drained Cublake soils have sandy spodic horizons, do not have aquic conditions, and are on adjacent upland positions. The somewhat poorly drained Allendale soils have a sandy spodic horizon and are on adjacent upland positions. The poorly drained Wakeley soils are sandy in the upper part and are in adjacent depressions.
DRAINAGE AND PERMEABILITY: Poorly drained or very poorly drained. Potential surface runoff is negligible or very low. The permeability is moderate in the upper part and very slow in the lower part. The soil is subject to frequent, brief to very long periods of flooding from March to May. An apparent water table is at 2 feet above the surface to 1.0 feet below the surface at any time during the year.
USE AND VEGETATION: Most areas of Rollaway soils are forested. Black ash, balsam fir, northern white cedar, black spruce, red maple, quaking aspen, speckled alder, redosier dogwood, and sedge are the principal plant species.
DISTRIBUTION AND EXTENT: Northeastern lower Michigan; MLRA 94A. The series is of small extent.
MLRA OFFICE RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: Iosco County, Michigan, 1995. The source of the name is a local road.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Histic epipedon - from the surface to 9 inches (Oa horizon).
Particle- size control section - the zone from 10 to 40 inches (part
of the A, the Cg1, and part of the Cg2 horizon).
Aquic conditions - throughout the pedon.
Aquic soil moisture regime.
ADDITIONAL DATA: Soil Interpretations Record: MI0485