LOCATION EUREKA FL
Established Series
Rev. ALF:GWH
10/2018
EUREKA SERIES
The Eureka series consists of deep, poorly drained, slowly and very slowly permeable soils that formed in clayey and loamy marine sediments. These soils are on low, broad flat interstream divides and depressions of central and south Florida. Slopes range from 0 to 2 percent.
TAXONOMIC CLASS: Fine, mixed, semiactive, hyperthermic Typic Albaqualfs
TYPICAL PEDON: Eureka loamy fine sand - forested. (Colors are for moist soil.)
A--0 to 4 inches; black (N 2/0) loamy fine sand; moderate fine granular structure; friable; common fine and medium roots; very strongly acid; clear wavy boundary. (2 to 10 inches thick)
E--4 to 11 inches; grayish brown (10YR 5/2) loamy fine sand; common medium faint gray (N 5/0) and pale brown (10YR 6/3) mottles; moderate fine granular structure; friable; common fine and medium roots; very strongly acid; abrupt wavy boundary. (3 to 15 inches thick)
Btgl--11 to 20 inches; gray (N 5/0) sandy clay; common medium prominent strong brown (7.5YR 5/8) and red (10R 4/6) mottles; moderate subangular blocky structure parting to moderate fine angular blocky; firm, sticky, plastic; common fine and medium roots; common discontinuous clay films on faces of peds; very strongly acid; gradual wavy boundary.
Btg2--20 to 57 inches; gray (N 5/0) sandy clay loam; many medium prominent strong brown (7.5YR 5/8) and red (10YR 4/6) mottles; moderate medium subangular blocky structure; firm, sticky, plastic; common fine and medium roots; few patchy clay films on faces of some peds; strongly acid; gradual wavy boundary.
Btg3--57 to 72 inches; gray (N 5/0) sandy clay loam; many medium prominent strong brown (7.5YR 5/8) and red (10R 4/6) and many medium faint light brownish gray (10YR 6/2) mottles; moderate medium subangular blocky structure; firm, sticky, plastic; few fine roots; few patchy clay films on faces of some peds; strongly acid. (The Btg horizon extends to a depth of 60 inches or more.)
TYPE LOCATION: Ocala National Forest, Marion County, Florida, 1 mile northwest of entrance to Lake Fore Recreation Area on State Road 314; 0.5 miles west on unmarked National Forest road; and 100 feet north of road. NW1/4SE1/4NE1/4, sec. 18, T. 14 S., R. 24 E.
RANGE IN CHARACTERISTICS: Solum thickness is 60 to more than 72 inches. Depth to the Btg horizon is less than 20 inches. The soil is very strongly acid or strongly acid.
The A horizon has hue of 10YR or 2.5Y, value of 2 to 5, and chroma of 1 or 2; or it is neutral with value of 2 to 5. Where value is 3 or less thickness is 6 inches or less. The A horizon is loamy sand, loamy fine sand, fine sand, or sand.
The E horizon has hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 1 or 2. Texture is 1oamy sand, loamy fine sand, fine sand, or sand.
The Btg horizon has hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 1 or 2; or it is neutral with value of 4 to 7. Mottles in shades of brown, yellow, or red range from common to many. The Btg horizon is clay, sandy clay, or sandy clay loam with 35 to 55 percent clay and less than 20 percent silt in the control section.
COMPETING SERIES: These are the
Papagua series in the same family and
Emeralda,
Flemington,
Ledwith, and
Paisley series in similar families. Papaguq soils are drier during the summer. Emeralda soils have a mollic epipedon. Flemington, Ledwith, and Paisley soils have montmorillonitic soils are in a very fine family.
GEOGRAPHIC SETTING: Eureka soils are on low, broad, interstream divides and slightly depressed areas of the central and South Florida Flatwoods. The soil formed in unconsolidated clayey and loamy marine sediments. Near the type location the mean annual temperature is 73 degrees F., mean annual precipitation is 59 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing
Emeralda and
Paisley series and the
Delks,
Eaton,
Lynne, and
Martel series. Emeralda and Paisley soils are on similar landscape positions. Delks, Eaton, and Lynne soils are on adjacent higher flatwood positions and have a Bh horizon. Martel soils are on adjacent lower depressions and have an arenic epipedon.
DRAINAGE AND PERMEABILITY: Poorly drained. Slow runoff, slow and very slow permeability.
USE AND VEGETATION: Most areas are in native vegetation of longleaf and slash pines, sweetbay, magnolia, water oak, and sweetgum with an understory of inkberry, pineland threeawn, bluestems, indiangrass, and waxmyrtle. Cleared and drained areas are used for truck crops and improved pasture.
DISTRIBUTION AND EXTENT: Peninsular Florida. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama
SERIES ESTABLISHED: Lake County, Florida, 1970.
REMARKS: Diagnostic horizon and features recognized in this pedon are:
Ochric epipedon - the zone from 0 to 11 inches.
Argillic epipedon - the zone from 11 to 72 inches.
National Cooperative Soil Survey
U.S.A.