LOCATION SCHAAT CREEK MI+WIEstablished Series
TAXONOMIC CLASS: Fine, mixed, active, frigid Aeric Endoaqualfs
TYPICAL PEDON: Schaat Creek clay loam - on a nearly-level slope in a cultivated area on a flood plain at an elevation of 385 meters. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 13 centimeters; very dark brown (7.5YR 2.5/3) clay loam, dark brown (7.5YR 3/2) dry; moderate medium granular structure; friable; many very fine to medium roots; about 1 percent fine gravel; pH 5.6 in water and 5.0 in 0.01M calcium chloride; abrupt smooth boundary. (13 to 15 centimeters thick)
Bw--13 to 25 centimeters; brown (7.5YR 4/3) clay loam; weak medium subangular parting to moderate coarse granular structure; friable; many very fine, many fine and common medium roots; few distinct discontinuous brown (7.5YR 5/3) silt coats on faces of peds; few medium distinct strong brown (7.5YR 5/6) masses of oxidized iron; pH 5.4 in water and 4.7 in 0.01M calcium chloride; clear wavy boundary. (13 to 18 centimeters thick)
Bt1--25 to 48 centimeters; brown (7.5YR 5/3) sandy clay loam; moderate coarse subangular parting to moderate medium subangular blocky structure; firm; many fine and common medium roots; few faint patchy brown (7.5YR 5/4) clay films on faces of peds; common faint discontinuous brown (7.5YR 5/3) silt coats on faces of peds; common medium distinct strong brown (7.5YR 5/6) and common coarse prominent strong brown (7.5YR 5/8) masses of oxidized iron; about 1 percent fine gravel; pH 7.8 in water and 7.1 in 0.01M calcium chloride; clear wavy boundary.
Bt2--48 to 109 centimeters; brown (7.5YR 5/3) clay including thin stratifications of silty clay loam and sandy clay loam; moderate coarse subangular parting to moderate medium subangular blocky structure; firm; few fine and medium roots; few faint patchy brown (7.5YR 5/4) clay films on faces of peds; very few prominent discontinuous dark brown (7.5YR 3/2) organic stains in the matrix; common medium distinct strong brown (7.5YR 5/6) masses of oxidized iron; about 1 percent fine gravel; pH 8.5 in water and 7.9 in 0.01M calcium chloride; clear wavy boundary.
BCg--109 to 137 centimeters; brown (7.5YR 5/2) clay loam; weak coarse subangular blocky structure; firm; few fine roots; common medium prominent strong brown (7.5YR 5/6) masses of oxidized iron; about 2 percent cobbles and 3 percent gravel; slightly effervescent; pH 8.2 in water and 7.6 in 0.01M calcium chloride; clear wavy boundary.
C--137 to 203 centimeters; reddish brown (5YR 4/3) clay loam; massive; very firm; violently effervescent; pH 6.8 in water and 6.2 in 0.01M calcium chloride.
TYPE LOCATION: Major Land Resource Area (MLRA 92) Superior Lake Plain, Ontonagon County Michigan Subset; about 1 mile northwest of Topaz location; 200 feet south and 300 feet east of the northwest corner of Section 7, T48N, R41W, USGS Matchwood, MI, topographic quadrangle.; lat. 46 degrees 34 minutes 39 seconds N. and long. 89 degrees 29 minutes 21 seconds W., NAD 1927.
RANGE IN CHARACTERISTICS:
Depth to free carbonates - 51 to greater than 152 centimeters
Gravel content - 0 to 5 percent throughout
Cobble content - 0 to 3 percent throughout
Reaction (Ap, Bw horizons) pH 5.1 to 7.3 in water (strongly acid to neutral)
Reaction (Bt1, Bt2, BCg, and C horizons) - ph 6.6 to greater than 9.0 in water (neutral to very strongly alkaline)
Texture, color and thickness of horizons vary considerably because of the nature of the parent material.
Thin bands or layers of sandy or gravelly materials, or textures contrasting to the dominant texture of the horizon are found in some pedons.
A and Ap horizons
Hue: 5YR or 7.5YR
Value: 2.5 or 3
Chroma: 1 to 3
Texture: silt loam, silty clay loam, clay loam, loam, fine sandy loam, sandy loam, loamy sand, loamy fine sandy or sand
Bw horizon
Hue: 5YR or 7.5YR
Value: 3 to 5
Chroma: 3 or 4
Texture: silt loam, loam, clay loam or silty clay loam
Bt horizons
Hue: 5YR or 7.5YR
Value: 3 or 4
Chroma: 3 or 4
Texture: silty clay loam, sandy clay loam, clay loam or clay
BCg horizons
Hue: 5YR or 7.5YR
Value: 4 or 5
Chroma: 1 or 2
Texture: silt loam, silty clay loam, clay loam or clay
C horizon
Hue: 5YR or 7.5YR
Value: 4 or 5
Chroma: 3 or 4
Texture: silt loam, silty clay loam, clay loam or clay
COMPETING SERIES: This is the Matoon series. Matoon soils formed in marine deposits on marine plains, and have bedrock at 50 to 100 centimeters.
GEOGRAPHIC SETTING:
Parent material: silty and clayey alluvium
Landform: floodplains and drainageways on till plains
Slope: 0 to 2 percent
Elevation: 295 to 425 meters
Mean annual temperature: 3 to 6 degrees C.
Mean annual precipitation: 635 to 865 millimeters
Frost-free period: less than 100 to 140 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Amnicon,
Badriver,
Bergland,
Cuttre,
Miskoaki,
Odanah,
Pickford, and
Sanborg soils.
Members of the typical drainage sequence (catena) include Odanah, Sanborg, Badriver, and Pickford soils. These soils are on landform positions above the floodplain and drainageway positions of the Schaat Creek soils.
Members of an associated drainage sequence (catena) include Miskoaki, Amnicon, Cuttre, and Bergland soils. All these soils are in the very-fine particle-size class.
Amnicon are on knolls and side slopes on ground moraines, formed in clayey till, and are in the Oxyaquic Vertic Glossudalfs Subgroup.
Badriver are on flats and in depressions and drainageways on till plains, formed in clayey till, and are in the Aeric Glossaqualfs Subgroup.
Bergland are on nearly level areas and in depressions on till plains or till-floored lake plains, formed in clayey till, and are in the Aeric Vertic Epiaqualfs Subgroup.
Cuttre are on flats, drainageways, depressions and long backslopes on till plains, formed in clayey till, and are in the Aeric Glossaqualfs Subgroup.
Miskoaki are on knolls and side slopes on ground moraines, formed in clayey till, and are in the Vertic Glossudalfs Subgroup.
Odanah are on knolls and side slopes on till plains, formed in clayey till, and are in the Haplic Glossudalfs Subgroup.
Pickford occupy nearly level to depressional areas on lake plains and moraines and are in the Aeric Epiaquepts Subgroup.
Sanborg - are on knolls and flats on till plains, formed in clayey till, and are in the Oxyaquic Glossudalfs Subgroup.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage - water saturation from 0 to 203 centimeters exists from November to May.
Saturated hydraulic conductivity less that 0.01 micrometers per second (very low)
Flooding frequency under usual weather conditions, during March through May and October through November, there is a 5 to more than a 50 percent chance of flooding in any year or 5 to more than 50 times in 100 years (occasional and frequent).
Flooding duration 2 to 30 days (brief to long)
USE AND VEGETATION: Most areas are forested but some areas are cleared. The major species are red maple, black ash, quaking aspen, white spruce, northern white cedar, speckled alder and balsam fir.
DISTRIBUTION AND EXTENT:
Physiographic Division
--Laurentian Upland
Physiographic Province
--Superior Upland
Land Resource Region
--Northern Lake States Forest and Forage region (LRR K)
Major Land Resource Area
--Superior Lake Plain (MLRA 92)
--Superior Stony and Rocky Loamy Plains and Hills, Eastern Part (MLRA 93B)
This series is of small extent with 3942 acres (1596 hectares) correlated.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota
SERIES ESTABLISHED: Major Land Resource Area 92 Superior Lake Plain; Ontonagon County Michigan Subset, January 2007. Proposed: Ontonagon County, Michigan, 2004. The source of the name is Schaat Creek in Ontonagon County.
REMARKS: Diagnostic horizons and features in the typical pedon include:
Ochric epipedon 0 to 13 centimeters (Ap horizon)
Argillic horizon - 25 to 109 centimeters (Bt1 and Bt2 horizons)
Aquic conditions 1) endosaturation; 2) Redoximorphic features: masses of iron oxide concentrations at 13 to 137 centimeters, and reduced matrix at 109 to 137 centimeters.
Aeric subgroup at 13 to 75 centimeters, hues of 7.5YR, chroma of 3, and no redox depletions with chroma of 2 or less.
Irregular decrease in total carbon percent 48 to 203 centimeters
ADDITIONAL DATA: Refer to User Pedon ID S04MI-131-025 at the NSSC National Soil Survey Laboratory (http://ssldata.nrcs.usda.gov/) for Characterization Data of the Typical Pedon.