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Apg
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0-16
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Dark gray (10YR4/1) silty clay; many medium distinct strong brown (7.5YR4/6), dark brown (10YR4/3) mottles; moderate medium and coarse subangular blocky structure; firm, sticky, plastic; many very fine and common fine roots; some charcoal fragments; medium acid (field pH 6.0); clear, smooth boundary. |
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Bg
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16-30
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Brown (10YR5/3) silty clay; many medium distinct yellowish brown (10YR5/6), strong brown (7.5YR5/8) mottles and some gray (10YR5/1) spot; moderate medium and coarse subangular blocky structure; firm, sticky, plastic; common very fine roots; few Fe&Mn concretions; slightly acid (field pH 6.5); clear, smooth boundary. |
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Btgv1
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30-60
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Grayish brown (10YR5/2) clay; common medium prominent red (2.5YR4/6) and common medium distinct dark yellowish brown (10YR4/4) mottles; moderate medium and coarse easily breaking to fine subangular blocky structure; friable, sticky, plastic; moderately thick clay coatings on ped faces and pore walls; few very fine roots; common plinthite (3-5%), common soft Fe&Mn concretions; some animal holes; slightly acid (field pH 6.5); gradual, smooth boundary. |
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Btgv2
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60-100
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Grayish brown (10YR5/2) clay; common fine and medium prominent red(2.5YR4/6) and few fine distinct yellowish brown (10YR5/8) mottles; moderate fine and medium subangular blocky structure; friable, sticky, plastic; moderately thick clay coatings on ped faces and pore walls; few very fine roots; common plinthite (5-15%) few slickensides and pressure faces, some organic matter (very dark grayish brown) coatings on ped faces, common soft Fe&Mn concretions; very strongly acid (field pH 5.0); gradual, smooth boundary. |
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Bssgv
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100-165
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Mixed grayish brown (10YR5/2) and light brownish gray (10YR6/2) clay; common medium prominent red (2.5YR4/8) few fine distinct yellowish brown (10YR5/8) mottles; moderate medium and coarse subangular blocky structure; firm, sticky, plastic; common distinct slickensides and pressure faces, common plinthite (5%); very strongly acid (field pH 5.0); gradual, smooth boundary. |
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Bgv
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165-200+
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Gray to light gray (10YR6/1) clay; common medium distinct dark yellowish brown (10YR4/6), yellowish red (5YR5/6), common fine distinct strong brown (7.5YR5/8) and prominent red (2.5YR4/8) mottles; weak medium and coarse subangular blocky structure grading to massive; firm, sticky, plastic; common plinthite (5-6%), common pressure faces; very strongly acid (field pH 5.0). |
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