LOCATION REMLAP ALEstablished Series
TAXONOMIC CLASS: Very-fine, mixed, subactive, thermic Typic Hapludults
TYPICAL PEDON: Remlap silty clay loam (Colors are for moist soil unless otherwise stated).
Ap--0 to 7 inches; brown (7.5YR 4/4) silty clay loam; weak medium, granular blocky structure; friable; common fine roots; strongly acid; abrupt smooth boundary. (4 to 8 inches thick)
Bt1--7 to 14 inches; yellowish red (5YR 5/6) clay; moderate medium subangular blocky structure; very firm; many faint clay films; few fine roots; very strongly acid; clear smooth boundary. (6 to 28 inches thick)
Bt2--14 to 30 inches; yellowish red (5YR 5/6) clay with common medium distinct strong brown (7.5YR 5/6) and red (2.5YR 5/6) lithochromic mottles; moderate medium subangular blocky structure; very firm; very many faint clay films; 5 percent shale parachanners; very strongly acid; gradual smooth boundary. (10 to 42 inches thick)
Bt3--30 to 48 inches; yellowish red (5YR 5/6) clay; many medium distinct strong brown (7.5YR 5/6) and red (2.5YR 5/6) lithochromic mottles; moderate medium subangular blocky structure; very firm; many faint clay films; very strongly acid; gradual wavy boundary. (10 to 40 inches thick)
Bt4--48 to 60 inches; variegated red (2.5YR 4/6), strong brown (7.5YR 5/8), and light gray (10YR 7/2) clay; moderate medium subangular blocky structure; very firm; very strongly acid; few faint clay films; gradual wavy boundary. (0 to 27 inches thick)
Bt5--60 to 80 inches; variegated reddish yellow (7.5YR 6/8), light gray (10YR 7/2), and red (2.5YR 4/6) clay; weak coarse subangular blocky structure; very firm; very few faint clay films; very strongly acid. (0 to 34 inches thick)
TYPE LOCATION: Blount County, Alabama; approximately 0.2 mile north northeast of Birmingham Industrial Water System pumping station along field road. Ten feet south of road in cultivated field. NE1/4NW1/4 sec. 5, T. 14 S., R. 1 E.
RANGE IN CHARACTERISTICS: Thickness of solum and depth to limestone bedrock is more than 60 inches. Shale channers or parachanners range from 0 to 15 percent in the solum. Some pedons have few to many black or brown iron-manganese concretions in the argillic horizon. Reaction ranges from extremely acid or very strongly acid throughout the solum, except surface layers are less acid where limed.
The A horizon has hue of 7.5YR or 10YR, value of 4 or 5, and chroma of 2 to 6. Texture is silty clay loam, silt loam, or loam.
The BE horizon, where present, is less than 8 inches thick, has hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 4 to 8. Texture is similar to the A horizon.
The Bt horizon has hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 6 or 8. Texture of the Bt is clay and clay content of the upper 20 inches of the Bt horizon ranges from 60 to 75 percent. Lithochromic Mottles retained from weathered shale are common.
The BC horizon, where present, is commonly variegated without dominant hue or chroma in various shades of gray, yellow, and red. Texture is clay. A few pedons have a similar BCt horizon with few clay films and stronger structure.
COMPETING SERIES: There are presently no other series in this family. Close competitors are the Albertville, Carnasaw, Cullen, Enders, Fluvanna, Kirvin, Luverne, Masada, McQueen, Nason, Sweatman, Tatum, Townley, and Vance series. All of these, with the exception of Cullen series, have less than 60 percent clay in the particle-size control section. Cullen soils have kaolinitic mineralogy and weathered from mixed mafic and felsic crystalline rocks or the Piedmont Plateau.
GEOGRAPHIC SETTING: Remlap soils are on side slopes and toe slopes of uplands. The soil is formed from residuum weathered from interbedded limestone and shale. Near the type location, the mean annual temperature is 62 degrees F., and the average annual precipitation is 54 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Allen, Barfield, Bodine, Fullerton, Hamblen, Minvale, and Spadra series. All of these soils have less than 60 percent clay in the control section.
DRAINAGE AND PERMEABILITY: Well drained with slow permeability.
USE AND VEGETATION: The most gently sloping areas are used for pasture. Virginia and loblolly pines dominate woodland areas.
DISTRIBUTION AND EXTENT: Sand Mountain Region of Alabama and the Southern Appalachian Ridges and Valleys in Alabama and Tennessee. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Blount County, Alabama; 1974.
REMARKS: Remlap soils were formerly included with the Talbott series. These soils would have been classified in the Red-Yellow great soil group.
ADDITIONAL DATA: Commonly intermingled with the Remlap series in mapping are small areas where reaction ranges to mildly alkaline in the lower solum due to contact with limestone bedrock.