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Cumulative Texture Curves for Profile Slide #21 Horizons, Inceptisol, F, T.

Cumulative texture curve for profile Slide #27. Spodosol, F, T.

Photo of root system of red pine in calcareous waterlaid sand at Vivian; n.b. note Ca carbonate accumulations in lower soil these developed around old roots cf. Slide #79. Alfisol, P, C, D.

B horizon developed around successive root channels in calcareous sands at Vivian; n.b. water laid sand in C. Alfisol, HB, C, D.

Photo of regosol under sage brush in central Oregon. Aridisol, P, C, D.

Orthic alpine brown soil. Slide from Canada. Department of Agriculture. Inceptisol, P, C, D.

Podzol developed in brown wooded an example of a bisequum; photo from Canada Department of Agriculture. Spodosol, P, C, D.

Grumic Dark Brown n.b. structure of soil. Photo from Canada Department of Agriculture. Mollisol, P, S, D.

Calcareous brown soil under grass. Photo Can.Dep.Agric. Ardisol, P, C, D.

Gray-Brown Podzolic in Till; N.B. nut structure of B horizon. Photo Can. Dep. Agric Alfisol, P, S, D.
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