LOCATION TICONIC IA+SDEstablished Series
TAXONOMIC CLASS: Sandy over loamy, mixed, active, calcareous, mesic Typic Udifluvents
TYPICAL PEDON: Ticonic fine sand, on a 1/2 percent slope, in a cultivated field, at an elevation of about 1,048 feet above sea level. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 8 inches; dark grayish brown (10YR 4/2) fine sand, light brownish gray (10YR 6/2) dry; single grain; loose; common very fine roots; very slightly effervescent; slightly alkaline; abrupt smooth boundary. (4 to 9 inches thick)
C1--8 to 16 inches; brown (10YR 5/3) and pale brown (10YR 6/3) stratified loamy fine sand and sand; single grain; loose; few very fine roots; very slightly effervescent; slightly alkaline; gradual smooth boundary.
C2--16 to 23 inches; grayish brown (10YR 5/2) and light brownish gray (10YR 6/2) stratified loamy fine sand and sand; single grain; loose; strongly effervescent; few fine distinct yellowish brown (10YR 5/4) redoximorphic concentrations; slightly alkaline; clear smooth boundary.
C3--23 to 28 inches; grayish brown (2.5Y 5/2) stratified loamy fine sand and very fine sandy loam; massive with weak thin alluvial stratification; very friable; few fine distinct dark yellowish brown (10YR 4/4) and yellowish brown (10YR 5/4) redoximorphic concentrations; strongly effervescent; slightly alkaline; clear smooth boundary. (Combined thickness of C horizon is 9 to 32 inches.)
2C4--28 to 38 inches; grayish brown (2.5Y 5/2) stratified loam and very fine sandy loam; massive with weak thin alluvial stratification; very friable; few fine distinct dark yellowish brown (10YR 4/4), yellowish brown (10YR 5/4), and few fine prominent strong brown (7.5YR 5/6) redoximorphic concentrations; strongly effervescent; slightly alkaline; clear smooth boundary.
2C5--38 to 52 inches; grayish brown (2.5Y 5/2) loam; massive with weak thin alluvial stratification; friable; few thin grayish brown fine sandy loam and loamy fine sand strata; few fine distinct dark yellowish brown (10YR 4/4), yellowish brown (10YR 5/4), and few fine prominent strong brown (7.5YR 5/6) redoximorphic concentrations; strongly effervescent; slightly alkaline; clear smooth boundary.
2C6--52 to 72 inches; light brownish gray (2.5Y 6/2) and grayish brown (2.5Y 5/2) stratified loamy very fine sand, very fine sandy loam and fine sand; massive with weak thin alluvial stratification; very friable; few fine distinct dark yellowish brown (10YR 4/4) and yellowish brown (10YR 5/4) redoximorphic concentrations; slightly effervescent; slightly alkaline; clear smooth boundary. (Combined thickness of 2C horizon is 22 to 62 inches.)
3C7--72 to 80 inches; dark grayish brown (2.5Y 4/2) and grayish brown (2.5Y 5/2) stratified silty clay and silty clay loam; massive with weak thin alluvial stratification; firm; few fine distinct dark yellowish brown (10YR 4/4), yellowish brown (10YR 5/4), and few fine prominent strong brown (7.5YR 5/6) redoximorphic concentrations; strongly effervescent; slightly alkaline.
TYPE LOCATION: Monona County, Iowa; located about 2,075 feet north and 1,650 feet east of the southwest corner of section 17, T. 83 N., R 46 W.; USGS Onawa SW topographic quadrangle; lat. 42 degrees 0 minutes 13 seconds N. and long. 96 degrees 13 minutes 40 seconds W, NAD 83.
RANGE IN CHARACTERISTICS:
Depth to carbonates--0 to 10 inches
Depth to stratified loamy alluvium--18 to 36 inches
Content of clay in the upper half to upper two thirds of the particle-size control section (weighted average)--2 to 5 percent
Content of clay in the lower half to lower third of the particle-size control section (weighted average)--12 to 24 percent
Content of sand in the upper half to upper two thirds of the particle-size control section (weighted average)--75 to 90 percent
Content of sand in the lower half to lower third of the particle-size control section (weighted average)--35 to 70 percent
A or Ap horizon:
Hue--10YR or 2.5Y
Value--3 to 5
Chroma--2 to 4
Texture--fine sand, loamy fine sand, very fine sandy loam, fine sandy loam, or sandy loam
Clay content--2 to 10 percent
Sand content--50 to 90 percent
Reaction--neutral to moderately alkaline
Matrix value of 3 and chroma of 3 or less does not extend below a depth of 7 inches
C horizon:
Hue--10YR or 2.5Y
Value--4 to 6
Chroma--2 to 4
Texture--stratified fine sand, sand, loamy very fine sand, loamy fine sand, or loamy sand
Clay content--2 to 5
Sand content--75 to 90 percent
Reaction--slightly alkaline or moderately alkaline
2C horizon:
Hue--10YR or 2.5Y
Value--4 to 6
Chroma--2 to 4
Texture--stratified loam, silt loam, very fine sandy loam, fine sandy loam, sandy loam, fine sand, sand, loamy very fine sand, loamy fine sand, or loamy sand
Clay content--2 to 24
Sand content--35 to 95 percent
Reaction--slightly alkaline or moderately alkaline
3C horizon:
Hue--10YR or 2.5Y
Value--4 to 6
Chroma--2 to 4
Texture--silt, silt loam, silty clay loam, and silty clay
Clay content--6 to 60 percent
Sand content--1 to 50 percent
Reaction--slightly alkaline or moderately alkaline
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING:
Parent material--18 to 36 inches of sandy alluvium and the underlying stratified loamy alluvium
Landform--flood plains
Slope--0 to 2 percent
Elevation--700 to 1,650 feet above sea level
Mean annual air temperature--45 to 50 degrees F.
Mean annual precipitation--20 to 36 inches
Frost-free period--135 to 190 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Grable,
Haynie,
Kenmoor,
Sarpy, and
Vore soils.
Grable--are in landscape positions similar to those of the Ticonic soils and have a clay content of 12 to 16 percent in the upper half of the particle-size control section
Haynie--are in landscape positions similar to those of the Ticonic soils, have a clay content of 15 to 18 percent throughout the particle-size control section, and have a frequently saturated zone between depths of 4 to 6 feet in normal years
Kenmoor--are in landscape positions similar to those of the Ticonic soils and have buried horizons within 20 to 38 inches which have a clay content of more than 35 percent
Sarpy--are in landscape positions similar to those of the Ticonic soils and have a clay content of 2 to 5 percent throughout the particle-size control section
Vore--are in landscape positions similar to those of the Ticonic soils and have a clay content of 28 to 35 percent in the particle-size control section
DRAINAGE AND PERMEABILITY:
Drainage class--well drained--a saturated zone does not occur within a depth of 6 feet in normal years
Permeability--rapid in the sandy alluvium and moderate in the underlying stratified loamy alluvium
Surface runoff potential--low
Flooding--rare or occasional flooding for brief to long periods during the months of February to November in most years resulting from precipitation events and snowmelt and flooding from streambank overflow is limited where dams and levees protect areas
USE AND VEGETATION:
Most areas are cultivated. The principal crops are corn, soybeans and small grains. Some areas are irrigated. The native vegetation is big bluestem, indiangrass, switchgrass, other grasses of the tall grass prairie and deciduous trees.
DISTRIBUTION AND EXTENT:
Physiographic Division--Interior Plains
Physiographic Province--Central Lowland
Physiographic section--Dissected till plains
MLRA(s)--Iowa and Minnesota Loess Hills (107A), Iowa and Missouri Deep Loess Hills (107B)
LRR M; adjacent to or within one to two miles of the river channel along the Missouri River in Iowa and possibly Missouri, Nebraska, and South Dakota
Extent--small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: Monona County, Iowa, 1995.
REMARKS:
Particle size control section--the zone from a depth of 10 to 40 inches (C1, C2, C3, 2C4, and 2C5 horizons);
series control section--the zone from the surface to a depth of 60 inches (Ap, C1, C2, C3, 2C4, 2C5, and 2C6 horizons).
Diagnostic horizons and features recognized in this pedon include:
ochric epipedon--the zone from the surface to a depth of 8 inches (Ap horizon);
udic moisture regime.
Strongly contrasting particle-size class transition zone--the zone from a depth 23 to 28 inches (C3 horizon).
These soils were formerly included with the Sarpy soils and Mixed alluvial lands.
Cation-exchange class is inferred from lab data for similar soils in the surrounding area.
Taxonomy version--second edition, 1999.
The redoximorphic features in this profile are believed to be related to the moisture status of the materials at the time of deposition and not related to present day moisture status. The redoximorphic features in this profile were not considered in the current classification of the soil.
These soils are not saturated to the surface.
ADDITIONAL DATA:
Laboratory data--National Soil Survey Laboratory, Lincoln, Nebraska, pedon number S91IA-193-002 (http://ssldata.sc.egov.usda.gov/).