LOCATION TEDDY KYEstablished Series
TAXONOMIC CLASS: Fine-loamy, siliceous, semiactive, mesic Typic Fragiudults
TYPICAL PEDON: Teddy silt loam - on a northeast facing concave slope of 3 percent in a hay field. (Colors are for moist soil unless otherwise stated).
Ap--0 to 9 inches; brown (10YR 4/3) silt loam; weak fine granular structure; friable; common very fine roots; slightly acid; clear smooth boundary. (6 to 10 inches thick)
Bt--9 to 21 inches; yellowish brown (10YR 5/6) silt loam; moderate fine and medium subangular blocky structure; friable; few very fine roots; few very fine tubular pores; few distinct clay films on faces of peds; medium acid; gradual smooth boundary. (10 to 20 inches thick).
Btx1--21 to 30 inches; yellowish brown (10YR 5/4) silt loam; many medium distinct light gray (10YR 7/2) and grayish brown (10YR 5/2) mottles; moderate very coarse prismatic structure parting to weak fine and medium subangular blocky; very firm, brittle; few very fine roots between prisms; few distinct clay films on faces of peds; few thin distinct light brownish gray (10YR 6/2) silt coats between peds; 1 percent pebbles from mixed sedimentary rocks; strongly acid; gradual smooth boundary.
Btx2--30 to 46 inches, yellowish brown (10YR 5/4) clay loam; many medium distinct light gray (10YR 7/2) and grayish brown (10YR 5/2) mottles; moderate very coarse prismatic structure parting to weak fine and medium subangular blocky; very firm, brittle; few distinct clay films on faces of peds; few thin light brownish gray (10YR 6/2) silt coats between peds; few fine irregular concretions; strongly acid; clear irregular boundary. (The combined thickness of the Btx horizon is 13 to 44 inches.)
2Bt1--46 to 72 inches; red (2.5YR 4/6) and dark gray (10YR 4/1) clay loam; common medium distinct dark gray (N 4/0) and reddish yellow (7/5YR 6/6) mottles; moderate coarse platy structure parting to moderate medium angular blocky; firm; many distinct clay films on faces of peds; very strongly acid; clear irregular boundary.
2Bt2--72 to 79 inches; reddish brown (5YR 5/4) clay loam; common medium distinct yellowish brown (10YR 5/6) and light brownish gray (10YR 6/2) mottles; moderate medium subangular blocky structure parting to moderate medium angular blocky; firm; common distinct clay films on faces of peds; 10 percent gravel from mixed sedimentary rocks; very strongly acid; gradual irregular boundary. (The combined thickness of the 2Bt horizon is 16 to 34 inches.)
3Bt3--79 to 89 inches; yellowish brown (10YR 5/4) very gravelly clay loam; many medium prominent red (2.5YR 4/8) and common medium distinct light brownish gray (10YR 6/2) mottles; moderate coarse subangular blocky structure parting to moderate medium angular blocky; firm; few distinct clay films on faces of peds; 35 percent gravel from mixed sedimentary rocks; very strongly acid. (0 to more than 10 inches thick).
TYPE LOCATION: Casey County, Kentucky; about 9 miles south of Liberty; about 2.3 miles southwest of Phil; on the Phil USGS Quadrangle about 2,228,900 feet east and 311,550 feet north by the Kentucky coordinate grid system.
RANGE IN CHARACTERISTICS: Thickness of the solum and depth to bedrock is more than 60 inches. Reaction ranges from slightly acid to very strongly acid in the Ap and Bt horizons and is strongly acid or very strongly acid in the Btx, 2Bt, and 3Bt horizons. Rock fragments range from 0 to 2 percent in the Ap, Bt, and Btx horizons, 0 to 15 percent in the 2Bt horizon, and 10 to 45 percent in the 3Bt horizon.
The Ap horizon has hue of 10YR, value of 4 or 5, and chroma of 3 or 4. Texture is silt loam or loam.
Some pedons have an A horizon with hue of 10YR, value of 3 or 4, and chroma of 2 or 3. Texture is silt loam or loam.
Some pedons have an E horizon with hue of 10YR, value of 5 or 6, and chroma of 2 or 4. Texture is silt loam or loam.
The Bt horizon has hue of 10YR or 7.5YR, value of 5 or 6, and chroma of 3 to 6. Texture is silt loam, loam, or silty clay loam.
The Btx horizon has hue of 10YR or 7.5YR, value of 5 or 6, and chroma of 3 to 8. Mottles are in shades of gray and brown. Texture is silt loam, clay loam, or loam. Some pedons have silt coats in shades of gray along prism faces.
The 2Bt horizon has hue of 2.5YR to 10YR, value of 4 to 6, and chroma of 1 to 6. Mottles are in shades of brown, gray, or red. Texture is clay loam, silty clay loam, or silty clay.
The 3Bt horizon has hue of 2.5YR to 10YR, value of 5 or 6, and chroma of 4 to 6. Mottles are in shades of red, gray, or brown. Texture is clay loam, silty clay loam, or the gravelly or very gravelly modifiers.
Some pedons have a 3C horizon with colors like the 3Bt horizon or is mottled in those colors without dominant matrix hue. Texture is similar to the 3Bt horizon. Content of rock fragments ranges from 10 to 45 percent.
COMPETING SERIES: These are Laidig, Neabsco, and Tarklin series in the same family. The Laidig soils contain 10 to 50 percent rock fragments in the horizons above the fragipan. The Neabsco soils formed in fluvio- marine sediments on the coastal plain and contain rock fragments of mostly rounded quartz gravel. Tarklin soils have more than 15 percent coarse fragments in the control section. Series in similar families are Bedford and Sango soils. Bedford soils are in a fine-silty family and have mixed mineralogy. Sango soils are in a coarse-silty family and in the thermic temperature regime.
GEOGRAPHIC SETTING: Teddy soils are on nearly level to sloping broad ridgetops and upper side slopes. Slopes range from 0 to 12 percent. The soil formed in a loamy mantle about 2 to 4 feet thick over residuum from limestone, shale, sandstone, or siltstone. Mean annual temperature is about 57 degrees F. and mean annual precipitation is about 51 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Carpenter, Frankstown, Frederick, Garmon, Lawrence, Lenberg, and Pricetown (proposed) soils. The Carpenter, Frankstown, Frederick, Garmon, Lenberg, and Pricetown (proposed) soils are well drained. Frederick soils are in a clayey family, Lenberg soils are in a fine family, and Lawrence and Pricetown (proposed) soils are in a fine-silty family. The Lawrence soils are somewhat poorly drained. Carpenter and Lenberg soils have more than 35 percent base saturation.
DRAINAGE AND PERMEABILITY: Moderately well drained. Runoff is medium. Permeability is moderate above the fragipan and slow in the fragipan.
USE AND VEGETATION: Most areas are used for growing corn, tobacco, small grains, hay, and pasture. The native vegetation was mixed hardwood forest.
DISTRIBUTION AND EXTENT: The Eastern Pennyroyal of Kentucky and possibly Tennessee. Extent is moderate.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES PROPOSED: Casey County, Kentucky; 1988 Source of the name is a small community in Casey County.
REMARKS: Diagnostic horizons in the pedon are:
Ochric epipedon - 0 to 9 inches (Ap horizon)
Argillic horizon - 9 to 89 inches (Bt, Btx1, Btx2, 2Bt1, 2Bt2, 3Bt3)
Fragipan - 21 to 46 inches (Btx1, Btx2)
These soils were formerly mapped as Dickson or Nicholson.
ADDITIONAL DATA: Characterization sample S87-KY-045-001 by the Kentucky Agricultural Experiment Station and the National Soil Survey Laboratory.
Engineering data of selected horizons by SCS Soil Mechanics Laboratory, Fort Worth, Texas.