LOCATION GIDEON MO
Established Series
Rev. RLT-LJG
02/2013
GIDEON SERIES
The Gideon series consists of very deep, poorly drained, moderately slowly permeable soils that formed in alluvium. These soils are on flood plains and depressional areas. Slopes are generally less than 1 percent. Mean annual temperature is about 61 degrees F, and mean annual precipitation is about 48 inches.
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, nonacid, thermic Mollic Fluvaquents
TYPICAL PEDON: Gideon loam - on a 0.5 percent slope in a cultivated field at an elevation of 266 feet. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 9 inches; very dark grayish brown (10YR 3/2) loam, grayish brown (10YR 5/2) dry; weak coarse granular structure parting to weak fine granular; compacted traffic pan in lower 3 inches; friable; common fine roots; moderately alkaline; abrupt smooth boundary. (6 to 10 inches thick)
Cg1--9 to 18 inches; olive gray (5Y 5/2) clay loam; weak medium subangular blocky structure; firm; few fine roots; common medium prominent brown (7.5YR 4/4) masses of iron accumulation; few fine black iron-manganese concretions; few dark organic stains; slightly acid; clear wavy boundary.
Cg2--18 to 45 inches; gray (5Y 5/1) sandy clay loam; occasional pockets or vertical cracks filled with dark gray (10YR 4/1) clay loam; weak medium subangular blocky structure parting to weak fine subangular blocky; firm; few fine roots; common medium prominent yellowish red (5YR 4/6) masses of iron accumulation; common fine black iron-manganese concretions; slightly acid; clear wavy boundary. (Combined thickness of the Cg horizon is 18 to 48 inches.)
Ab--45 to 60 inches; very dark gray (10YR 3/1) clay loam; moderate medium subangular blocky structure; firm; few medium distinct dark brown (7.5YR 3/2) masses or iron accumulation; few fine black iron-manganese concretions; neutral; gradual smooth boundary. (0 to 18 inches thick)
Cg3--60 to 68 inches; dark gray (5Y 4/1) clay loam, some mixing of very dark gray (10YR 3/1) clay; weak medium subangular blocky structure; firm; few medium prominent brown (7.5YR 4/4) masses of iron accumulation; few fine black iron-manganese concretions; neutral; gradual smooth boundary.
Cg4--68 to 80 inches; olive gray (5Y 5/2) sandy clay loam, weak medium subangular blocky structure; firm; few black stains and iron masses; few, fine, black iron/manganese concretions; common coarse distinct dark gray (5Y 4/1) iron depletions; common medium distinct pale olive (5Y 6/4) and common coarse prominent brown (7.5YR 4/4) masses of iron accumulation; neutral.
TYPE LOCATION: New Madrid County, Missouri; about 3 miles east of the town of Gideon; 580 feet east and 50 feet south of the northwest corner of sec. 22, T. 21 N., R. 11 E; USGS Boekerton quadrangle. Latitude 36 degrees, 27 minutes, 4.4 seconds N., longitude 89 degrees, 51 minutes, 19.2 seconds W., NAD83.
RANGE IN CHARACTERISTICS: Reaction ranges from slightly acid to moderately alkaline. Depth to the Ab horizon, where present, is more than 40 inches. The particle size control section averages between 20 and 30 percent clay and from 30 to 60 percent fine sand or coarser.
The Ap horizon has hue of 10YR or 2.5Y, value of 2 or 3, and chroma of 1 to 3. Dry value is less than 6. It is loam, clay loam, sandy clay loam, or sandy loam.
The C horizon has hue of 10YR, 2.5Y, or 5Y; value of 4 to 6; and chroma of 2 or less.
COMPETING SERIES: There are no other series in this family. Similar series in other families are the
Hayti,
Mhoon, and
Waverly series. Hayti and Mhoon soils are fine silty. Waverly soils are more acid.
GEOGRAPHIC SETTING: Gideon soils are on flood plains and depressional areas in the Mississippi River Valley. Slopes are generally less than 1 percent. The soils formed in loamy alluvium. The mean annual temperature ranges from 58 to 64 degrees F, and the mean annual precipitation ranges from 45 to 50 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Canalou,
Farrenburg,
Lilbourn,
Roellen,
Sharkey,
Sikeston, and
Wardell soils. Canalou, Farrenburg, and Lilbourn soils are better drained, have browner colors, and generally more acid reactions. These soils are on higher positions. Roellen soils have a mollic epipedon, contain more clay, and are in a similar position. Sharkey soils are clayey throughout and generally are on lower positions. Sikeston soils have a mollic epipedon more than 24 inches thick and are on similar positions. Wardell soils have an argillic horizon and are on higher positions.
DRAINAGE AND PERMEABILITY: Poorly drained. Runoff is negligible to very low. Permeability is moderately slow.
USE AND VEGETATION: Most of these soils are drained and used for growing cultivated crops, mainly cotton and soybeans. Native vegetation was cypress and mixed hardwoods.
DISTRIBUTION AND EXTENT: Southeast Missouri (MLRA 131). The series has moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: AUBURN, ALABAMA
SERIES ESTABLISHED: New Madrid County, Missouri, 1974.
REMARKS: Diagnostic horizons and features recognized in this series are; Ochric epipedon - the zone from the surface of the soil to a depth of 9 inches (Ap horizon). Aquic soil moisture regime.
National Cooperative Soil Survey
U.S.A.