LOCATION MAPLEHILL INEstablished Series
TAXONOMIC CLASS: Coarse-silty, mixed, superactive, nonacid, mesic Aeric Fluvaquents
TYPICAL PEDON: Maplehill silt loam, frequently flooded - on a 1 percent slope in a cultivated field. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 8 inches; dark grayish brown (10YR 4/2) silt loam, light brownish gray (10YR 6/2) dry; weak fine granular structure; friable; few fine roots; slightly acid; gradual smooth boundary. (7 to 11 inches thick)
Cg--8 to 26 inches; dark grayish brown (10YR 4/2) silt loam; few fine faint grayish brown (10YR 5/2) mottles; weak fine subangular blocky structure; friable; few fine roots; dark yellowish brown (10YR 4/4) iron and manganese oxide stains; neutral; abrupt smooth boundary. (13 to 25 inches thick)
Ab1--26 to 34 inches; very dark grayish brown (10YR 3/2) silt loam; 10 percent mixing of brown (10YR 5/3) silt loam; weak fine prismatic structure parting to weak fine granular; friable; few fine roots; neutral; clear smooth boundary.
Ab2--34 to 47 inches; very dark gray (10YR 3/1) silt loam; weak medium subangular blocky structure; friable; common fine roots; neutral; gradual smooth boundary. (Combined thickness of the Ab horizons is 10 to 22 inches)
Bgb1--47 to 63 inches; dark gray (10YR 4/1) silt loam; common fine distinct yellowish brown (10YR 5/4) mottles; weak fine prismatic structure parting to weak fine subangular blocky; friable; few fine roots; neutral; gradual smooth boundary.
Bgb2--63 to 80 inches; gray (10YR 5/1) silt loam; many medium prominent yellowish brown (10YR 5/6) mottles; weak fine prismatic structure; friable; few fine roots; few dark gray (10YR 4/1) krotovina; neutral. (Combined thickness of the Bgb horizons is 30 to more than 50 inches.)
TYPE LOCATION: Gibson County, Indiana; approximately 1 mile southeast of Princeton; 1025 feet west and 290 feet south of the center of sec. 17, T. 2 S., R. 10 W.
RANGE IN CHARACTERISTICS: The recent alluvium is 20 to 36 inches thick. The average clay content of the 10 to 40 inch control section ranges from 12 to 18 percent.
The Ap horizon has hue of 10YR, value of 4 or 5, and chroma of 2 or 3. It is slightly acid or neutral.
The C or Cg horizon has hue of 10YR, value of 4 or 5, chroma of 2 or 3, and is mottled. It is slightly acid or neutral.
The Ab horizon has hue of 10YR, value or 2 or 3, and chroma of 1 or 2. It is slightly acid or neutral.
The Bgb horizon has hue of 10YR or 2.5Y, value of 4 or 5, and chroma of 1 or 2 with brighter mottles. It is neutral or mildly alkaline.
A Cg horizon, present above a depth of 80 inches in some pedons, has hue of 10YR or 2.5Y, value of 5 or 6, and a chroma of 1 or 2 with brighter mottles. It is silt loam or silty clay loam and ranges from neutral to moderately alkaline.
COMPETING SERIES: These are the Oridia and Wakeland series in the same family and the Algiers series. Algiers soils are fine-loamy. Oridia and Wakeland soils do not have a buried dark colored A horizon within a depth of 36 inches.
GEORGRAPHIC SETTING: Maplehill soils are on bottom lands and also on lake plains as alluvial fans at the mouth of drainageways from adjacent uplands. The slope gradient is 0 to 2 percent. They formed in recent silty alluvium and an underlying buried soil formed in silty material. The mean annual temperature ranges from 53 to 57 degrees F, and the mean annual precipitation ranges from 40 inches to 45 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Wakeland soils and also the Ragsdale soils. Wakeland soils are typically on wider bottom lands along streams and drainageways. Ragsdale soils have mollic epipedons and typically are on broad lake plains.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained. Runoff is slow. Permeability is moderate.
USE AND VEGETATION: Nearly all areas are drained and used for corn, soybeans, and winter wheat. Native vegetation was hardwood trees.
DISTRIBUTION AND EXTENT: Southwest Indiana. This series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: Gibson County, Indiana, 1986.
REMARKS: This soil was formerly mapped as Algiers series in southern Indiana.
Diagnostic features and horizons recognized in this pedon are: ochric epipedon - 0 to 8 inches (Ap horizon); aquent - mottled 4/2 colors above 20 inches.
ADDITIONAL DATA: Purdue University Soil Characterization Lab Data is available (S85IN51-1).