LOCATION WANGS MNEstablished Series
TAXONOMIC CLASS: Fine, illitic, mesic Entic Hapludolls
TYPICAL PEDON: Wangs silty clay loam, on an east-facing, linear slope of 10 percent, in a cultivated field, at an elevation of about 325 meters above sea level. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 28 centimeters; very dark gray (2.5Y 3/1) silty clay loam, dark gray (10YR 4/1) dry; moderate very fine subangular blocky structure; firm; strongly effervescent; moderately alkaline; abrupt wavy boundary. (15 to 30 centimeters thick)
2BC--28 to 41 centimeters; olive (5Y 4/3), olive gray (5Y 4/2) and dark greenish gray (10Y 4/1) clay; weak medium and coarse angular blocky structure; firm; about 2 percent limestone channers and flags; strongly effervescent; moderately alkaline; gradual wavy boundary. (0 to 35 centimeters thick)
2Cr--41 to 152 centimeters; greenish gray (5GY 5/1) and dark greenish gray (10Y 4/1) clay shale; common coarse prominent strong brown (7.5YR 5/8) mottles; weak very thick platy inherited rock structure; very firm; about 5 percent limestone channers and flags; strongly effervescent; moderately alkaline.
TYPE LOCATION: Major Land Resource Area (MLRA) 104Eastern Iowa and Minnesota Till Prairies, Goodhue County, Minnesota subset; about 2 miles northeast of Wangs; located about 1,675 feet north and 1,205 feet east of the southwest corner of section 11, T. 111 N., R. 18 W.; USGS Sogn topographic quadrangle; lat. 44 degrees 25 minutes 58 seconds N. and long. 92 degrees 57 minutes 17 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Depth to paralithic contact of shale--15 to 50 centimeters
Depth to carbonates--0 to 30 centimeters
Clay content in the particle-size control section (weighted average)--40 to 60 percent
Sand content in the particle-size control section (weighted average)--10 to 35 percent
Ap or A (when present) horizon:
Hue--10YR or 2.5Y
Value--2 or 3
Chroma--1 to 3
Texture--silty clay loam, silt loam, loam, clay loam or the channery and flaggy analogues of these textures
Clay content--18 to 35 percent
Sand content--10 to 45 percent
Reaction--neutral to moderately alkaline
Rock fragments content--0 to 35 percent
Bw or Bk horizon (when present):
Hue--10YR or 2.5Y
Value--4 or 5
Chroma--3 or 4
Texture--silty clay loam, silt loam, loam, clay loam or the channery and flaggy analogues of these textures
Clay content--18 to 35 percent
Sand content--10 to 45 percent
Reaction-- slightly alkaline or moderately alkaline
Rock fragment content--0 to 35 percent, rock fragments of the channery and flaggy analogues are limestone
2BC horizon (when present):
Hue--5Y, 10Y or 10GY
Value--4 or 5
Chroma--1 to 4
Texture--silty clay or clay
Clay content--40 to 60 percent
Sand content--10 to 35 percent
Reaction--slightly alkaline or moderately alkaline
Rock fragment content--2 to 15 percent, primarily limestone fragments
2Cr horizon:
Hue--5Y, 10Y, 10GY or 5GY
Value--4 to 6
Chroma--1 to 4
Texture--silty clay shale or clay shale
Clay content--40 to 80 percent
Sand content--10 to 35 percent
Reaction--slightly alkaline to moderately alkaline
Rock fragment content--2 to 15 percent, primarily limestone fragments
COMPETING SERIES: No other series are in this family.
GEOGRAPHIC SETTING:
Parent material--15 to 50 centimeters of silty or loamy sediments and the underlying shale
Landform--side slopes on dissected, bedrock-controlled uplands
Slope--6 to 35 percent
Elevation--305 to 335 meters above sea level
Mean annual air temperature--6 to 10 degrees C
Mean annual precipitation--735 to 965 millimeters
Frost-free period--145 to 205 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are
Colo,
Emeline,
Kenyon and
Wagen Prairie soils.
Colo--are at lower landscape positions in flat to concave drainageways and are frequently saturated at the surface of the soil during the wettest periods in normal years
Emiline--are on higher landscape positions on side slopes and shoulder slopes and have a lithic contact with limestone within a depth of 25 centimeters
Kenyon--are on higher landscape positions on upper side slopes and summits and do not have a paralithic or lithic contact within a depth of 200 centimeters
Wagen Prairie--are on similar landscape positions and have a paralithic contact with shale within depths of 50 to 100 centimeters
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained--a frequently saturated zone does not occur within a depth of 1.8 meters in normal years
Saturated hydraulic conductivity--1.00 to 10.00 micrometers per second in the silty or loamy sediments and 0.01 to 1.00 micrometrs per second in the shale
Surface runoff potential--medium or high
USE AND VEGETATION:
Most areas are cultivated. The principal crops are small grains and hay. Some areas are pastured. Native vegetation is mixed big bluestem, little bluestem, switchgrass and other grasses of the tall grass prairie, or oak savanna.
DISTRIBUTION AND EXTENT:
Physiographic Division--Interior Plains
Physiographic Province--Central Lowland
Physiographic sections--Dissected till plains and Wisconsin driftless section
MLRAs--Eastern Iowa and Minnesota Till Prairies (104) and Northern Mississippi Valley Loess Hills
LRR M; southeast Minnesota
Extent--small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: Goodhue County, Minnesota, 2007. Series named after the village of Wangs in Goodhue County, Minnesota.
REMARKS:
Particle-size control section--the zone from a depth of 25 to 41 centimeters (Ap and 2BC horizons);
series control section--the zone from the surface to a depth of 66 centimeters (Ap, 2BC, and 2Cr horizons).
Diagnostic horizons and features recognized in this pedon include:
mollic epipedon--the zone from the surface to a depth of 28 centimeters (Ap horizon);
paralithic contact--the contact with the 2Cr horizon at a depth of 41 centimeters;
lithologic discontinuity--at the upper boundary of the 2BC horizon;
udic moisture regime.
The thin mantle (Ap, A, Bw and Bk horizons) can be of eolian, till, colluvial or residual origin.
Color in the 2BC horizon, which formed in shale, is due partially to the color of parent material and not considered related to contemporary saturation.
The paralithic contact is Decorah Shale. Commonly there are isolated or thin beds of channers and flags of limestone in the shale matrix.
Taxonomy version--Keys to Soil Taxonomy, tenth edition, 2006.