LOCATION MOLTKE MI
Established Series
Rev. CMO-WEF-GDW
08/2012
MOLTKE SERIES
The Moltke series consists of very deep, somewhat poorly drained soils that formed in loamy glaciolacustrine deposits on lake plains, outwash plains, and deltas. Slope ranges from 0 to 3 percent. Mean annual precipitation is about 737 mm (29 inches), and mean annual temperature is about 6.6 degrees C (44 degrees F).
TAXONOMIC CLASS: Coarse-silty, mixed, semiactive, frigid Aquic Glossudalfs
TYPICAL PEDON: Moltke very fine sandy loam, on a northwest-facing, 1 percent slope. (Colors are for moist soil unless otherwise stated.)
A--0 to 10 cm (4 inches); dark brown (7.5YR 3/2) very fine sandy loam, gray (10YR 5/1) dry; weak very fine subangular blocky structure; friable; many very fine and medium roots; slightly acid; abrupt wavy boundary. [2 to 15 cm (1 to 6 inches) thick]
E--10 to 23 cm (4 to 9 inches); light brownish gray (10YR 6/2) loamy very fine sand; weak fine subangular blocky structure; very friable; many fine and common medium roots; moderately acid; abrupt wavy boundary. [2 to 13 cm (1 to 5 inches) thick]
B/E--23 to 33 cm (9 to 13 inches); about 85 percent brown (7.5YR 4/4) very fine sandy loam (Bt) surrounded by pale brown (10YR 6/3) loamy very fine sand (E); moderate fine subangular blocky structure; firm; many fine and few medium roots; few faint brown (7.5YR 5/4) clay films in root channels; common medium distinct strong brown (7.5YR 4/6) masses of oxidized iron throughout; common medium distinct pinkish gray (7.5YR 6/2) iron depletions throughout; moderately acid; clear wavy boundary. [5 to 20 cm (2 to 8 inches) thick]
Bt1--33 to 53 cm (13 to 21 inches); brown (7.5YR 4/4) very fine sandy loam; moderate medium subangular blocky structure; firm; common fine and medium roots; few faint brown (7.5YR 5/4) clay films on faces of peds and in root channels; few fine distinct strong brown (7.5YR 5/6) masses of oxidized iron throughout; few fine distinct brown (7.5YR 5/2) iron depletions throughout; neutral; gradual wavy boundary.
Bt2--53 to 84 cm (21 to 33 inches); yellowish brown (10YR 5/4) very fine sandy loam; moderate very coarse subangular blocky structure; friable; few fine and medium roots; few distinct reddish brown (5YR 4/3) clay films in root channels; many fine distinct strong brown (7.5YR 5/6) and reddish yellow (7.5YR 6/6) masses of oxidized iron throughout; slightly effervescent; slightly alkaline; gradual wavy boundary. [Combined thickness of the Bt horizon is 0 to 71 cm (28 inches).]
C--84 to 203 cm (33 to 80 inches); light yellowish brown (10YR 6/4) stratified very fine sandy loam and loamy very fine sand; massive; friable; few fine distinct strong brown (7.5YR 5/6) and reddish yellow (7.5YR 6/6) masses of oxidized iron throughout; slightly effervescent; moderately alkaline.
TYPE LOCATION: Presque Isle County, Michigan; about 2 miles north of the village of Ocqueoc; 660 feet north and 1715 feet west of the southeast corner of sec. 5, T. 35 N., R. 3 E., Ocqueoc Township; USGS Ocqueoc MI topographic quadrangle; lat. 45 degrees 26 minutes 21 seconds N. and long. 84 degrees 05 minutes 40 seconds W.
RANGE IN CHARACTERISTICS:
Thickness of the solum: 51 to 91 cm (20 to 36 inches)
Depth to carbonates: 51 to 76 cm (20 to 30 inches)
A or Ap horizon:
Hue: 7.5YR or 10YR
Value: 2, 2.5, or 3
Chroma: 1 or 2
Texture: very fine sandy loam, fine sandy loam, loam, or silt loam
Reaction: slightly acid to slightly alkaline
E horizon:
Hue: 10YR
Value: 4 to 6
Chroma: 2 to 4
Texture: loamy very fine sand, silt loam, or very fine sand
Reaction: slightly acid to slightly alkaline
E part of the B/E horizon:
Hue: 10YR
Value: 4 to 6
Chroma: 2 to 4
Texture: loamy very fine sand, silt loam, or very fine sand; as coatings surrounding peds of B material
Reaction: slightly acid to slightly alkaline
Bt part of the B/E horizon and Bt horizon:
Hue: 5YR to 10YR
Value: 4 or 5
Chroma: 4 to 6
Texture: very fine sandy loam or silt loam
Sand content: averages less than 15 percent fine sand or coarser
Reaction: slightly acid to slightly alkaline
BC horizon, where present:
Thickness: 0 to 20 cm (8 inches)
Hue: 5YR to 10YR
Value: 4 or 5
Chroma: 4 to 6
Texture: very fine sandy loam or silt loam
C horizon:
Hue: 7.5YR or 10YR
Value: 5 or 6
Chroma: 2 to 4
Texture: stratified loamy very fine sand and very fine sand to silt loam
Reaction: slightly alkaline or moderately alkaline
COMPETING SERIES: There are no other series in this family.
GEOGRAPHIC SETTING: Moltke soils are on lake plains, outwash plains, and deltas. Slope ranges from 0 to 3 percent. The Moltke soils formed in loamy glaciolacustrine deposits. Mean annual precipitation ranges from 686 to 762 mm (27 to 30 inches). Mean annual temperature ranges from 6.1 to 7.2 degrees C (43 to 45 degrees F).
GEOGRAPHICALLY ASSOCIATED SOILS: These are the moderately well drained
Grace soils on similar landscape positions, and the poorly drained or very poorly drained
Glawe soils in nearby depressions and drainageways.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Somewhat poorly drained. The depth to the top of a seasonal high water table ranges from 15 to 46 cm (0.5 to 1.5 feet) between October and May in normal years. Potential surface runoff is negligible to low. Saturated hydraulic conductivity is moderate.
USE AND VEGETATION: Most of these soils have been cleared and are being used for pasture and cropland. The remaining soils are in second growth woodland. The major species are sugar maple, American basswood, American beech, quaking aspen, white ash and northern white cedar.
DISTRIBUTION AND EXTENT: MLRA 94A and 94B in the northern lower peninsula and eastern half of the upper peninsula of Michigan. The 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 10 cm (4 inches) (A horizon).
Albic horizon: from a depth of 10 to 23 cm (4 to 9 inches) (E horizon).
Glossic horizon: from a depth of 23 to 33 cm (9 to 13 inches) (B/E horizon).
Argillic horizon: from a depth of 23 to 84 cm (9 to 33 inches) (B part of B/E, Bt1 and Bt2 horizons).
Aquic conditions: redoximorphic features present in all horizons below the ochric epipedon.
ADDITIONAL DATA: Soil Interpretation Record No.: MI0548.
National Cooperative Soil Survey
U.S.A.