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Table 5. Stratigraphic Profile Descriptions, SRT139 <br />N <br />rn <br />Profile 1 Profile 2 <br />Layer Description Layer Description <br />Ia. Depth: 0-10 an below P6 <br />Color: very dark gray (10 YR 3/1) <br />Texture: sandy loam <br />Comment: Very loose, disturbed top- <br />soil with abundant organic <br />matter. <br />Ib. Depth: 10-15 an belay P(~ <br />Color: very dark gray (10 YR 3/1) <br />Texture: sandy loam <br />Carnient: Humus layer containing much <br />organic matter. This layer <br />is more o~~act than Layer Ia. <br />II. Depth: 15-55 an belay PGS <br />Color: grayish brown (10 YR 5/2) <br />Texture: sandy clay loam <br />Comment: Dore ea~act than Layer Ib. <br />Contains many oxidized <br />sandstone pebbles. <br />III. Depth: 55-70 an belay PCS <br />Color: light braanish gray (10 YR 6/2) <br />Texture: sandy clay loin <br />Camient: Dore oaiq~act than Layer II. <br />Contains many oxidized <br />sandstone pebbles. <br />• • <br />Ia. Depth: 0-5 an belay PGS <br />Color: very dark gray (10 YR 3/1) <br />Texture: sandy loam <br />C'Al4ilellt' veiy iwS2, dl.'1. t~I111JCd t~tr <br />soil with abundant organic <br />matter. <br />Ib. Depth: 0-15 an belay PGS <br />Color: very dark gray (10 YR 3/1) <br />Texture: sandy loam <br />Comment: Humus layer containing much <br />organic matter. This layer <br />is more oanpact than Layer Ia. <br />II. Depth: 15-60 an below PGS <br />Color: grayish brawn (10 YR 5/2) <br />Texture: sandy clay loam <br />Comrent: Dore cu[q~act than Layer Ib. <br />Contains numerous oxidized <br />sandstone pebbles up to 2 an <br />in size. <br />III. Depth: 60-75 an below PGS <br />Color: light brownish gray (10 YR 6/2) <br />Texture: sandy clay loam <br />Comrent: Doore oa:g~act than Layer II. <br />Contains many small (ca. 30- <br />40 mn in di~neter) oxidized <br />sandstone pebbles. <br />• <br />