LOCATION ROSINE KYEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, semiactive, mesic Ultic Hapludalfs
TYPICAL PEDON: Rosine silt loam--forested. (Colors are for moist soil.)
A--0 to 1 inches; very dark grayish brown (10YR 3/2) silt loam; moderate fine granular structure; very friable; many very fine roots; strongly acid; abrupt smooth boundary. (1 to 3 inches thick)
E--1 to 4 inches; brown (10YR 5/3) silt loam; weak fine granular structure; very friable; common very fine and fine roots; common fine pores; strongly acid; clear wavy boundary. (2 to 6 inches thick)
Bt1--4 to 22 inches; strong brown (7.5YR 5/6) silty clay loam; weak fine subangular blocky structure; friable; common very fine roots; few very fine pores; common thin patchy clay films on faces of peds; strongly acid; gradual smooth boundary. (10 to 20 inches thick)
2Bt2--22 to 30 inches; yellowish brown (10YR 5/4) silty clay; common medium distinct mottles of grayish brown (10YR 6/2) and few fine distinct mottles of brown (7.5YR 5/4); moderate very fine subangular blocky structure; firm; few fine and medium roots; common patchy clay films on faces of peds; strongly acid; gradual smooth boundary. (4 to 22 inches thick)
2Bt3--30 to 36 inches; strong brown (7.5YR 5/6) silty clay; common coarse distinct mottles of gray (10YR 7/1); strong fine angular blocky structure; firm; common coarse roots; thin continuous clay films on faces of peds; strongly acid; diffuse smooth boundary. (0 to 10 inches thick)
2Bt4--36 to 50 inches; strong brown (7.5YR 5/6) silty clay; few fine distinct mottles of pale brown (10YR 6/3); strong fine angular blocky structure; firm; thin patchy clay films on faces of peds; strongly acid; clear smooth boundary. (6 to 20 inches thick)
2C--50 to 60 inches; gray (10YR 5/1) channery silty clay loam; common medium distinct mottles of strong brown (7.5YR 5/6); strong fine angular blocky structure; firm; 30 percent shale channers 1/4 inch to 3 inches long; strongly acid; clear smooth boundary. (0 to 30 inches thick)
2Cr--60 to 70 inches; gray and brown soft shale and siltstone.
TYPE LOCATION: Ohio County, Kentucky; about 3 miles north of Cromwell, 3 miles east of U.S. 231, 1 mile southeast of Rob Roy and 1500 feet southeast of Bald Knob Church.
RANGE IN CHARACTERISTICS: The solum thickness ranges from 30 to 60 inches. Depth to soft siltstone or shale ranges from 40 to 80 inches. Except where limed, the soil ranges from strongly to very strongly acid in the solum and from very strongly acid to slightly acid in the C horizon. Sandstone, siltstone, and shale channers range from 0 to 30 percent in the solum and up to 60 percent in the C horizon, and range from 1/4 inch to 15 inches long.
The A horizon has hue of 10YR, value of 3 or 4, and chroma of 2 or 3. Cultivated soils have an Ap horizon that has hue of 10YR or 7.5YR, value of 4 or 5, and chroma of 3 through 6. Texture is silt loam in uneroded pedons and silty clay loam in severely eroded pedons.
The E horizon has hue of 10YR, value of 4 or 5, and chroma of 3 to 5.
The Bt horizon has hue of 10YR to 5YR, value of 4 or 5, and chroma of 4 to 8. Textures are silt loam or silty clay loam.
The 2Bt horizon has hue of 2.5YR, 5YR, 7.5YR, and 10YR, value of 4 to 7, and chroma of 3 to 6. Mottles are in shades of brown and gray. The textures are silty clay loam, silty clay, or clay.
The 2C horizon has hue of 2.5YR, 5YR, 7.5YR, 10YR, and 2.5YR, value of 4 to 7, and chroma of 1 to 8. Textures are silty clay loam, silty clay, or clay and their channery and very channery analogues. Some pedons have 2BC horizons with color and texture ranges like the 2C.
COMPETING SERIES: These are the Eilertsen, Elk, Elkinsville, Parke, Pike, Stonehead, Vernonia, and Wellston series in the same family and Westmore series in related family. Eilertsen soils have dark colored surface layers and do not have the channery or shaly textures in the lower part of the solum. Elk, Elkinsville, Parke, and Pike soils contain less clay in the lower part of the argillic horizon and are not underlain by shale. Stonehead soils have more clay and fragments in the lower part of the profile, and the permeability is slow or very slow in the lower part. Vernonia soils dry for less than 45 consecutive days. Wellston soils have less clay in the lower part of the argillic horizon. Westmore soils are less acid with base saturation above 60 percent in the lower solum clayey textures in the lower B and C horizon.
GEOGRAPHIC SETTING: Rosine soils are on sloping to steep hillsides. Slopes range from 2 to 30 percent. They formed in loess and the underlying residuum weathered from shale and interbedded thin strata of siltstone. The mean annual precipitation os 35 to 45 inches and the mean annual temperature is about 52 to 57 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are Bonnie, Clifty, Cuba, Frondorf, Lenberg, Sadler, Steff, Stendal, Wellston, and Zanesville series. Bonnie, Clifty, Cuba, Steff, and Stendal soils are on flood plains. Frondorf, Sadler, Wellston, and Zanesville soils contain less clay in the lower part of the solum. Lenberg soils are clayey, and are not as deep to shale. Sadler and Zanesville soils have a fragipan.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is medium or rapid. Permeability is moderately slow.
USE AND VEGETATION: Most of the soil is forested. Species of trees include upland oaks, hickory, beech, elm, black walnut, and maple. Some areas have been cultivated and are in brushy, idle land or pasture and are reverting to forest. These areas are growing the above species and sassafras, persimmon, sumac, or red cedar.
DISTRIBUTION AND EXTENT: Pennyroyal and Western Coal Field Regions of Kentucky. Series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Ohio County, Kentucky; 1983.
REMARKS: This soil was previously mapped as Wellston silt loam, clayey subsoil variant, in Grayson County, Kentucky. Laboratory No. S63KY43-12, on file. 2,480 acres correlated in Grayson County.
Diagostic horizons and features in the pedon are:
Ochric epipedon, 0 to 7 inches (Ap)
Argillic horizon, 4 to 50 inches, Bt1, 2Bt2, 2Bt3, 2Bt4
Paralithic contact at 60 inches