LOCATION MICCOSUKEE FLEstablished Series
TAXONOMIC CLASS: Fine-loamy, siliceous, superactive, thermic Humic Pachic Dystrudepts
TYPICAL PEDON: Miccosukee fine sandy loam--on a 1 percent concave west facing slope in a cultivated field.
(Colors are for moist soil.)
Ap--0 to 9 inches; very dark grayish brown (10YR 3/2) fine sandy loam; moderate fine granular structure; friable; many fine and medium roots; strongly acid; clear wavy boundary. (8 to 12 inches thick)
A1--9 to 15 inches; very dark grayish brown (10YR 3/2) clay loam; weak fine granular structure; friable; many fine roots; very strongly acid; clear smooth boundary. (6 to 13 inches thick)
A2--15 to 28 inches; very dark grayish brown (10YR 3/2) sandy clay loam; weak fine granular structure; friable; common fine roots; few thin discontinuous bands of dark yellowish brown (10YR 4/4) sand; strongly acid; clear wavy boundary. (10 to 13 inches thick)
A3--28 to 37 inches; very dark gray (10YR 3/1) sandy clay loam; weak fine granular structure; friable; few fine roots; strongly acid; clear wavy boundary. (5 to 10 inches thick)
Ab--37 to 43 inches; intermingled dark yellowish brown (10YR 4/4) and dark gray (10YR 4/1) fine sandy loam; weak fine granular structure; very friable; strongly acid; clear wavy boundary. (4 to 16 inches thick)
Btb1--43 to 50 inches; dark yellowish brown (10YR 4/4) fine sandy loam; weak medium subangular blocky structure; friable; strongly acid; gradual wavy boundary.
Btb2--50 to 65 inches; yellowish brown (10YR 5/8) sandy clay; moderate medium subangular blocky structure; friable; medium acid; clear wavy boundary.
Btb3--65 to 80 inches; yellowish brown (10YR 5/8) sandy clay; many medium prominent yellowish red (10YR 5/8), red (2.5YR 4/8), and white (7.5YR 8/0) mottles; moderate medium subangular blocky structure; friable; many black manganese nodules; strongly acid.
TYPE LOCATION Jefferson County, Florida; 9 miles north of Monticello SW1/4SW1/4SE1/4, Government Lot 146, T. 3 N., R. 4 E.
RANGE IN CHARACTERISTICS: The solum thickness is more than 60 inches. Reaction ranges from very strongly acid to medium acid.
The A horizon has hue of 5YR through 10YR, value of 2 or 3, and chroma of 0 to 3. The texture is very fine sandy loam, fine sandy loam, sandy loam, loam, silt loam, clay loam, or sandy clay loam.
The Ab horizon has hue of 7.5YR or 10YR, value of 2 through 4, and chroma of 1 through 4. Texture is loamy sand, loamy fine sand, fine sandy loam, or sandy loam.
The Eb horizon, where present, has hue of 7.5YR or 10YR, value of 4 through 6, and chroma of 3 through 6. Texture is loamy sand, loamy fine sand, fine sandy loam, or sandy loam. Thickness is 6 inches or less.
The Btb horizon has hue of 7.5YR or 10YR, value of 3 through 7, and chroma of 2 through 8. Few to many mottles in shades of gray, yellow, brown, or red are present in many pedons. The lower Btb horizon is reticulately mottled in some pedons. The texture is sandy clay loam, fine sandy loam, and may be sandy clay in the lower part.
COMPETING SERIES: There are no known series in the same family. Iuka soils are on similar landscape positions but are more poorly drained.
GEOGRAPHIC SETTING: Miccousukee soils are on shallow depressions within the northern highlands and Tallahassee Hills uplands. These soils formed in sandy and loamy, marine and alluvial sediments. Near the type location, the average annual rainfall is about 57 inches and the mean annual temperature is about 68 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are Dothan, Fuquay, Lucy, and Orangeburg soils. All of the these are on uplands and do not have a buried horizon and the thick dark surface of Miccousukee soils.
DRAINAGE AND PERMEABILITY: Moderately well drained; permeability is slow. Brief ponding for periods of 1 or 2 days may result from intense rains. Depth to a water table ranges from 42 to 72 inches.
USE AND VEGETATION: Most areas of Miccosukee soils are cultivated. Natural vegetation consists of loblolly, slash and longleaf pines, sweetgum, American beautyberry, greenbriar, switchgrass, purpletop, longleaf uniola, chalky bluestem, low panicums, pineland threeawn, pinewood dropseed, and other annual forbs.
DISTRIBUTION AND EXTENT: Upland areas of the coastal plain. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama
ESTABLISHED SERIES: Jefferson County, Florida; 1984.
REMARKS: These soils have been mapped as "Local Alluvium" in older soil surveys.
Diagnostic horizons and features recognized in this pedon are:
Umbric epipedon--the zone from surface of the soil to a depth of approximately 37 inches (Ap and A horizons).
ADDITIONAL DATA: This Miccosukee pedon was sampled for characterization by the University of Florida, IFAS - Soil Science Department - Soil Characterization Laboratory as sample S33-36-(1-8) Iuka fine sandy loam. The Btb2 horizon was sampled for the Florida Department of Transportation for engineering test data as Jefferson County Sample Number 45.