![]() ![]() GEOGRAPHIC SETTING: Marlboro soils are on smooth uplands of the Coastal Plain, with slope gradients dominantly less than 6 percent, but ranging up to 15 percent. Freemanville, Sunsweet, and Varina soils have a horizon with more than 5 percent plinthite within a depth of 60 inches. Esto soils are mottled in the upper part of the Bt horizon. Caroline, Collegedale, Shubuta, and Turbeville soils have mixed mineralogy. Aycock, Carnegie, Dothan, Norfolk, and Tifton soils have less than 35 percent clay in the particle-size control section. Lugoff soils have more than 15 percent rock fragments in the upper Bt horizon. Henderson soils have 10 percent or more coarse fragments of chert. Dewey, Faceville, Fullerton, Summerton, and Waynesboro soils have dominant hue of 5YR or redder in the series control section. Waynesboro series in the same family and the Texture is sandy loam, sandy clay loam, clay loam, sandy clay, or clay. Iron accumulations in shades of red, yellow, and brown and iron or clay depletions in shades of gray range from few to many. The BC horizon, where present, has hue of 7.5YR or 10YR, value of 5 or 6, and chroma of 4 to 8. Some pedons have thin layers of sandy clay loam in the upper part of the Bt horizon. The Bt horizon is clay loam, sandy clay, or clay. The middle part of the Bt of many pedons has mottles in shades of in shades of red, brown, yellow, or gray. The Bt horizon has hue of 7.5YR or 10YR, value of 5 or 6, and chroma of 4 to 8. It is loamy sand, loamy fine sand, sandy loam, fine sandy loam, or very fine sandy loam in the fine-earth fraction. The E horizon, where present, has hue of 10YR or 2.5Y, value of 5 to 7, and chroma of 3 to 5. The A horizon has hue of 10YR, value of 4 or 5, and chroma of 1 to 4. Content of gravel ranges from 0 to 20 percent in the A and E horizons. Some pedons have as much as 4 percent nodules of plinthite commonly at more than 50 inches below the surface. The soil is very strongly acid to slightly acid in the A horizon and very strongly acid to moderately acid throughout the rest of the profile. RANGE IN CHARACTERISTICS: Solum thickness is more than 60 inches. TYPE LOCATION: Clarendon County, South Carolina 3 miles southeast of Summerton 1/2 mile north of Davis Crossroads (County Roads 38 and 127) and 600 feet east of County Road 38. (Bt horizon is more than 40 inches thick) (5 to 10 inches thick)īt1-9 to 19 inches strong brown (7.5YR 5/8) sandy clay moderate medium subangular blocky structure friable few faint clay films on faces of peds and in old root channels many fine roots and pores few uncoated quartz sand grains moderately acid clear smooth boundary.īt2-19 to 39 inches strong brown (7.5YR 5/8) sandy clay moderate medium subangular blocky structure friable few faint clay films on faces of peds and in old root channels common fine roots few uncoated quartz sand grains moderately acid clear smooth boundary.īt3-39 to 50 inches strong brown (7.5YR 5/8) sandy clay moderate medium subangular blocky structure friable common faint clay films on faces of peds few fine roots and pores few uncoated quartz sand grains moderately acid gradual smooth boundary.īt4-50 to 60 inches strong brown (7.5YR 5/8) sandy clay common fine and medium distinct yellowish red (5YR 4/6) and yellowish brown (10YR 5/8) and few fine distinct red (2.5YR 4/8) mottles moderate medium subangular blocky structure friable common faint clay films on faces of peds few uncoated quartz sand grains moderately acid gradual smooth boundary.īt5-60 to 64 inches mottled strong brown (7.5YR 5/6), yellowish brown (10YR 5/6), yellowish red (5YR 4/6), and red (2.5YR 4/8) sandy clay few fine pale brown mottles weak medium subangular blocky structure friable, sticky common uncoated quartz sand grains about 2 percent nodules of plinthite strongly acid clear smooth boundary.īt6-64 to 72 inches mottled brown (10YR 5/3) and red (2.5YR 4/6) sandy clay common medium distinct gray (10YR 6/1) mottles weak medium subangular blocky structure friable common uncoated quartz sand grains about 2 percent nodules of plinthite very strongly acid. TYPICAL PEDON: Marlboro loamy sand-cultivated.Īp-0 to 9 inches dark grayish brown (10YR 4/2) loamy sand weak fine granular structure very friable many fine roots moderately acid abrupt smooth boundary. TAXONOMIC CLASS: Fine, kaolinitic, thermic Typic Paleudults The Marlboro series consists of very deep, well drained, moderately permeable, clayey soils that formed in marine sediments. Official Series Description - MARLBORO Series LOCATION MARLBORO SC+AL FL GA NC VA ![]()
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