LOCATION RENOX KYEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, semiactive, mesic Ultic Hapludalfs
TYPICAL PEDON: Renox gravelly loam - cultivated. (Colors are for moist soil.)
Ap--0 to 6 inches; brown (10YR 4/3) gravelly loam; moderate medium granular structure; friable; many fine roots; 16 percent gravel, mostly shale and siltstone; strongly acid; clear smooth boundary. (5 to 9 inches thick)
BA--6 to 13 inches; dark yellowish brown (10YR 4/4) gravelly loam; weak very fine subangular blocky structure; friable; common fine roots; about 15 percent gravel, mostly shale and siltstone; medium acid; clear wavy boundary. (0 to 10 inches thick)
Bt1--13 to 24 inches; brown (10YR 4/3) gravelly loam; moderate fine subangular blocky structure; friable; common fine roots; few faint clay films on faces of peds; 25 percent gravel, mostly shale and siltstone; slightly acid; clear wavy boundary.
Bt2--24 to 36 inches; dark yellowish brown (10YR 4/4) gravelly clay loam; moderate medium subangular blocky structure; friable; few fine roots; few faint clay films on faces of peds; 13 percent gravel, mostly shale and siltstone; slightly acid; clear wavy boundary.
Bt3--36 to 53 inches; dark yellowish brown (10YR 4/4) loam; moderate medium and coarse subangular blocky structure; friable; few faint clay films on faces of peds; 8 percent gravel, mostly shale and siltstone; slightly acid; clear wavy boundary. (combined thickness of the Bt horizon is 20 to more than 55 inches.)
BC--53 to 67 inches; yellowish brown (10YR 5/4) loam; weak coarse subangular blocky structure; friable; 10 percent gravel, mostly shale and siltstone; medium acid.
TYPE LOCATION: Cumberland County, Kentucky; about 7.4 miles northwest of Burkesville courthouse on Kentucky Highway 61, about 200 feet southwest of Kentucky Highway 61 and about 520 feet northeast of Big Renox Creek in a burley tobacco patch.
RANGE IN CHARACTERISTICS: Thickness of the solum ranges from 40 to more than 60 inches. Rock fragments of shale, siltstone, limestone, chert, geodes, and sandstone are mostly gravel or channer size. They range from a trace to 30 percent in the solum and from a trace to 50 percent below the solum. The soil ranges from strongly acid to mildly alkaline.
The Ap horizon has hue of 10YR, value of 3 or 4 and chroma of 2 to 4. Texture is fine-earth is loam, silt loam, silty clay loam, or rarely fine sandy loam. Some wooded areas may have a thin A horizon with value or chroma of 2.
The BA horizon has hue of 10YR, value of 4 or 5, and chroma of 3 to 6. Texture of the fine-earth is loam, silt loam, or silty clay loam.
The Bt horizon has a dominant hue of 10YR or 7.5YR, value of 4 or 5 and chroma of 3 to 6. Some pedons have subhorizons with hue of 5YR. Texture of the fine-earth is loam, silt loam, silty clay loam, or clay loam.
The BC horizon or C horizon has hue of 10YR or 7.5YR, value of 4 to 6, and chroma of 4 to 6. Some pedons have mottles in shades of brown or gray. Texture of the fine-earth is loam, silt loam, silty clay loam, clay loam, sandy loam, or rarely silty clay.
Some pedons have a lithologic discontinuity below about 50 inches.
COMPETING SERIES: These are the
Westmoreland, Sheeling, and
Williamsburg. The Althol, Nolton, Lamotte, and Manassas soils have Br horizons with hues redder than 7.5YR. The Bookwood, Culleoka, Frondorf, Loudanville, and Spriggs soils have solum thickness of less than 40 inches, and depth to bedrock of less than 40 inches. The Brecknock soils have solum thickness of less than 40 inches and depth to bedrock of less than 60 inches. The Caribel, Greencreek, and Weedmark soils have annual preci0pitation less than 35 inches. The Carpenter soils have moderately fine or fine textures in the lower solum and substratum, and soft gray shale at depth of 40 to 80 inches or more. The Cateache, Oatlands, and Penn soils have Bt horizons with hue redder than 7.5YR, and solum thickness and depth to bedrock less than 40 inches. The Door soils have a mollic epipedon from 10 to 20 inches. The Dormont soils are mottled in the lower part of the Bt horizon. The Duffield soils are formed in residuum of impure limestone. Hayter soils have less than 40 percent silt in the particle-size control section and have 10 to 90 percent gravels and cobbles in the 2C horizon. The Legore, Mechanicsburg, Myersville, and Westmoreland soils have solum thickness of less than 40 inches. The Legore soils have rock fragments dominated by diabase or diorite and saprolite within a depth of 40 inches. The Neshaming soils have hues redder than 2.5YR in the lower part of the Bt horizons. The Panorama soils have hues redder than 7.5YR in the Bt horizon and have a paralithic contact within a depth of 60 inches. The Ryder soils have solum thickness less than 40 inches and hues redder than 7.5YR in the Bt horizon. The Washington soils are formed
in old glacial drift or colluvium over limestone bedrock below 60 inches or more. The Whelling soils have C horizons of stratified very fine sand ot sand with up to 65 percent rock fragments on river terraces. The Williamsburg soils are formed in a thin mantle of loess and in stratified outwash of silty and loamy material with some gravel on high stream terraces.
GEOGRAPHIC SETTING: Renox soils are on foot slopes, lower side slopes, toe slopes, benches, and alluvial fans. These soils formed in colluvium or alluvium from interbedded siltstone, shale, limestone, and sandstone origin. Mean annual temperature ranges from 53 to 56 degrees F., and the mean annual precipitation ranges from 40 to 53 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are Chagrin, Nolin, Pope, and Sensabaugh, soils on floodplains, the Allegheny, Elk, Cotaco, and Tarklin soils on stream terraces and foot slopes, and the Brookside, Carpenter, Colyer, Culleoka, Dekalb, Garmon, Newbern, Jefferson, Rohan, and Shelocta soils on surrounding uplands. Chagrin, Nolin, Pope, and Sensabaugh soils lack argillic horizons. Allegheny, Cotaco, and Tarklin soils have base saturation less than 35 percent. Elk soils are in a fine-silty family. Brookside soils are clayey. Carpenter soils formed in colluvium over residuum. Colyer and Rohan soils have bedrock at 10 to 20 inches, have base saturation less than 35 percent, and are in a skeletal family. Culleoka, Dekalb, and Garmon soils have bedrock at 20 to 40 inches. Newbern soils have bedrock at 10 to 20 inches. Jefferson and Shelocta soils have base saturation less than 35 percent.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderate permeability.
USE AND VEGETATION: Largely used for cultivated crops, and hay and pasture. Principal crops are burley tobacco, corn, and truck crops. Native vegetation was oaks, hickory, and yellow poplar.
DISTRIBUTION AND EXTENT: Highland Rim and Pennyroyal, the western edge of the Cumberland Mountains and Plateau, and possibly areas in the Kentucky Bluegrass MLRA in areas where calcareous siltstone, shales, or limestones are exposed in the watersheds. The series is inextensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Metcalfe County, Kentucky; 1965.
REMARKS: Recent lab data in Cumberland County, and revaluation of existing data on this series has changed the classification from Mollic subgroup to the Ultic subgroup.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - 0 to 6 inches (Ap).
Argillic horizon - 13 to 53 inches (Bt1, Bt2, Bt3).
ADDITIONAL DATA: Characterization data; S89KY-057-5 by the University of Kentucky.