LOCATION CHASE                   KS+MO

Established Series
Rev. SAS, JCR
09/2012

CHASE SERIES

The Chase series consists of very deep, somewhat poorly drained and moderately well drained, soils that formed in alluvium on floodplains. Slopes range from 0 to 2 percent. Mean annual precipitation is about 86 centimeters and the mean annual temperature is about 13 degrees C (56 degrees F).

TAXONOMIC CLASS: Fine, smectitic, mesic Aquertic Argiudolls

TYPICAL PEDON: Chase silty clay loam - in a cultivated field. (Colors are for moist soils unless otherwise stated.)

Ap--0 to 15 centimeters; black (10YR 2/1) silty clay loam, dark gray (10YR 4/1) dry; moderate fine and medium granular structure; slightly hard, friable, slightly plastic, slightly sticky; few worm casts; moderately acid; clear smooth boundary.

A--15 to 36 centimeters; black (10YR 2/1) silty clay loam, dark gray (10YR 4/1) dry; moderate medium granular structure; slightly hard, friable; slightly plastic, slightly sticky; few fine irregular shaped iron-manganese concretions; moderately acid; gradual smooth boundary. (Combined thickness of A horizon is 20 to 51 centimeters)

BA--36 to 51 centimeters; black (10YR 2/1) silty clay loam, dark gray (10YR 4/1) dry; moderate fine and medium subangular blocky structure; hard, firm, plastic and sticky; few fine distinct dark brown (10YR 3/3) masses of iron accumulation; few fine rounded iron-manganese concretions; few fine worm holes; few worm casts; slightly acid; gradual smooth boundary. (10 to 25 centimeters thick)

Bt1--51 to 86 centimeters; very dark gray (10YR 3/1) silty clay, gray (10YR 5/1) dry; moderate medium and fine blocky structure; very hard, very firm, very plastic, very sticky; common medium distinct dark yellowish brown (10YR 4/4) irregular shaped masses of iron accumulations; few fine rounded iron-manganese concretions; few fine clay films on ped faces; few fine worm holes; few worm casts; slightly acid; gradual smooth boundary.

Bt2--86 to 107 centimeters; very dark brown (10YR 2/2) silty clay, dark gray (10YR 4/1) dry; moderate medium blocky structure; very hard, very firm, very plastic, very sticky; common fine distinct yellowish brown (10YR 5/4) irregular shaped masses of iron accumulation; few fine rounded iron-manganese concretions; common fine clay films on ped faces; neutral; diffuse smooth boundary. (Combined thickness of the Bt horizons is 41 to 81 centimeters)

BC--107 to 137 centimeters; very dark brown (10YR 2/2) silty clay loam, dark gray (10YR 4/1) dry; very weak blocky structure; hard, firm, plastic and sticky; few fine distinct yellowish brown (10YR 5/4) irregular shaped masses of iron accumulations; few fine rounded iron-manganese concretions; neutral; diffuse smooth boundary. (0 to 41 centimeters thick)

C--137 to 203 centimeters; very dark grayish brown (10YR 3/2) silty clay loam, dark gray (10YR 4/1) dry; massive; hard, firm, plastic and sticky; few fine distinct yellowish brown (10YR 5/4) irregular shaped iron accumulations; few fine rounded black iron-manganese concretions; slightly alkaline.

TYPE LOCATION: Lyon County, Kansas; 1 mile northeast of Reading; 330 feet west and 2,000 feet north of the southeast corner, Sec. 34, T. 17 S., R. 13 E.

RANGE IN CHARACTERISTICS:
Soil moisture: The soil moisture control section is Udic moisture regime.
Depth to argillic horizon: 30 to 76 centimeters
Depth to redox concentrations: 15 to 51 centimeters
Depth to episaturation: 61 to 122 centimeters from January to April
Thickness of the mollic epipedon: Greater than 91 centimeters
Vertic features: The presence of linear extensibility of 6.0 cm or more at 51 to 107 centimeters
Particle-size control section (weighted average):
Clay content: 35 to 55 percent
Sand content: 1 to 4 percent

A horizon:
Hue: 10YR
Value: 2 or 3 moist, 3 to 5 dry
Chroma: 1 or 2
Texture: Silt loam or silty clay loam
Clay content: 12 to 40 percent
Reaction: Moderately acid to neutral

BA horizon:
Hue: 10YR
Value: 2 or 3 moist, 3 to 5 dry
Chroma: 1 or 2
Texture: Silty clay loam
Clay content: 27 to 40 percent
Reaction: Moderately acid to neutral

Bt horizon:
Hue: 10YR or 2.5Y
Value: 2 to 5 moist, 4 to 6 dry
Chroma: 1 or 2
Texture: Silty clay loam, silty clay or clay
Clay content: 35 to 55 percent
Reaction: Moderately acid to slightly alkaline.

C horizon:
Hue: 10YR or 2.5Y
Value: 2 to 5 moist, 4 to 6 dry
Chroma: 1 or 2
Texture: Silty clay loam or silty clay
Clay content: 27 to 55 percent
Reaction: Slightly acid to moderately alkaline
Some pedons contain fine carbonate concretions.

COMPETING SERIES: These are the Adair, Arisburg, Arispe, Good Thunder, Greenton, Grundy, Lagonda, Lamoni, Macksburg, Mahaska, Martin, Mayberry, Seymour, Shorewood, Tina, and Wymore series.
These soils have mollic epipedons less than 91 centimeters thick.
In addition, Adair, Lamoni, Mayberry, and Pawnee soils contain more sand and coarse fragments in the series control section.
Malvern soils have redder hues in the Bt horizon.

GEOGRAPHIC SETTING:
Parent material: Alluvium that has low sand content.
Landform: Floodplains
Slopes: 0 to 2 percent
Mean annual temperature: 12 to 14 degrees C (53 to 57 degrees F)
Mean annual precipitation: 76 to 102 centimeters
Frost-free period: 160 to 185 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Ivan, Kennebec, Muscotah,
Osage, Reading, and Wabash soils.
Ivan, Kennebec, and Reading soils are fine-silty.
Kennebec and Ivan soils are on low floodplains.
Reading soils are on slightly higher areas.
Muscotah soils are on slightly lower areas.
Osage and Wabash soils do not have an argillic horizon, are more poorly
drained, and are on slightly lower areas.

DRAINAGE AND PERMEABILITY:
Drainage: Somewhat poorly or moderately well
Permeability: Slow
Seasonal high water table: 2 to 4 feet
Months: January to April
Flooded: Rare or Occasional
Duration: Brief
Months: March to June

USE AND VEGETATION: Almost all areas of Chase soils are cultivated. Wheat, corn, grain sorghum, and soybeans are the principal crops. Native vegetation is tall prairie grass with few to many deciduous trees.

DISTRIBUTION AND EXTENT: East central and northeastern Kansas;. moderate extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana

SERIES ESTABLISHED: Riley County, Kansas, 1970.

REMARKS: Diagnostic horizons and features recognized in this pedon: mollic epipedon - the zone from the surface to a depth of about 137 centimeters; argillic horizon - the zone from about 51 to 107 centimeters (Bt1 and Bt2 horizons); udic moisture regime. This soil is considered not to be saturated to the surface.
Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 69 to 107 centimeters. (Bt1, Bt2 horizons)
Mollic epipedon: The zone from 0 to 137 centimeters.
Argillic horizon: The zone from 51 to 107 centimeters. (Bt1, Bt2 horizons)
Redoximorphic concentrations: In the zone from 15 to 203 centimeters.
Vertic features: The presence of linear extensibility of 6.0 cm or more at 51 to 107 centimeters.
Episaturation: The zone of saturation at 61 to 122 centimeters24 to 48 inches.
lrr=m
7/90
Split A horizon into Ap and A
Added mottles to BA and Bt1 horizons. These changes based on new pedon description of the site.
Minor revisions in RIC
Revised competing series paragraph
Added REMARKS paragraph

Date: 11/93 CEW
Removed stream terrace from the introductory paragraph.
Change classification to Fine, Montmorillonitic, mesic Aquertic Argiudolls.
Described "mottles" as redoximorphic features in the profile description.
Added Tina Series as a competing series.
Added Muscotah to the as a associated series.
Updated existing SOILS-5 and created a moderately well drained SOILS-5.

Date: 5/00 JCR
Changed format of OSD to semi-tabular from narrative.
Added Soil Interpretation Record clay content and sand content to "Range In Characteristics" and frost-free period to Geographic setting.
Changed runoff from low to medium based on permeability.

09/2008 GJJ converted to metric, removed English units, and made some format changes.

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National Cooperative Soil Survey
U.S.A.