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A1
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0-16
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Black (7.5YR2/0) silty clay; strongly developed medium subangular blocky structure; friable, sticky, plastic; few very fine rounded concretion; many fine roots; slightly acid (field pH 6.5); clear, slightly wavy boundary. |
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A2
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16-31
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Black (10YR2/1) silty clay; moderate fine and medium subangular blocky structure; friable, sticky, plastic; few very fine rounded concretions and some fine quartz grains; some roots; slightly acid (field pH 6.5); gradual, smooth boundary. |
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AB
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31-45
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Very dark gray (10YR3/1) silty clay; weak medium subangular blocky structure; friable, sticky, plastic; few fine rounded concretions and some quartz grains; medium acid (field pH 6.0); clear, wavy boundary. |
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Bw
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45-64
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Dark gray (10YR4/1) clay; massive to weak medium subangular blocky structure; firm, sticky, plastic; weak development of fine slickensides; many rounded concretions and some quartz grains; many faint reddish brown mottles which become more prominent with depth; few fine roots; medium acid (field pH 6.0) gradual, smooth boundary. |
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Cg
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64-90+
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Light brownish gray (10YR6/2) silty clay; many medium distinct strong brown and yellowish brown mottles; weak medium and coarse subangular blocky with some platy structure; sticky, plastic; some quartz grains; few very fine rounded iron-manganese concretions; few roots; medium acid (field pH 6.0). |
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