Laserfiche WebLink
<br />Mesa Series <br />Representative Profile <br />Al - 0 to 4 inches, loam; pinkish-gray (7.SYR 6/2) dry, brown or <br />dark brown (7.5YR 4/2) moist; moderate to strong, fine, <br />granular structure; hard when dry, very friable when moist; <br />noncalcareous; pH 7.6; clear, smooth boundary. <br />B2t - 4 to 12 inches, clay loam; light brown (7.5YR 6/3) dry, <br />brown or dark brown (7.SYR 4/3) moist; moderate, fine, <br />prismatic structure breaking to moderate to strong, fine, <br />subangular blocky; hard when dry, very friable when moist; <br />thin, nearly continuous clay films; 5 to 10 percent gravel; <br />noncalcareous; pH 7.4; clear, smooth boundary. <br />Baca - 12 to 16 inches, pink (7.5YR 7/4) dry, brown (7.SYR 5/4) <br />moist; weak, medium, prismatic structure breaking to weak, <br />medium, subangular blocky; hard when dry, very friable when <br />moist; few thin, patchy clay films; 5 to 10 percent gravel; <br />weak accimiulation of secondary calcium carbonate <br />concretions; calcareous; pH 8.0; gradual, smooth boundary. <br />Clca - 16 to 32 inches, gravelly clay loam; very pale brown (lOYR <br />8/3) dry, very pale brown (lOYR 7/3) moist; massive; hard <br />when dry, friable when moist; strong accumulation of <br />secondary calcium carbonate in finely divided forms; 40 <br />percent gravel; calcareous; pH 8.2; gradual, smooth <br />boundary. <br />C2ca - 32 to 60 inches, very gravelly clay loam; very pale brown <br />(lOYR 7/4) dry, light yellowish brown (lOYR 6/4) moist; <br />massive; hard when dry, friable when moist; moderate to <br />strong accumulation of secondary calcium carbonate occurring <br />as concretions and as coatings on the underside of rocks; 60 <br />percent gravel; grades downward to gravel and sand at a <br />depth below 60 inches; calcareous; pH 8.2. <br />Source: SCS Soil Survey, Delta-Montrose Area, 1967. <br />-20- <br />