| Depth (cm) | Unit Name | Description* |
|---|---|---|
| 10 | C | 5Y4/2 olive gray, fine to medium sand. Soil—massive. Moderately moist, loose. Sediment—massive (no lamination), single grain. Sharp contact. |
| 10–20 | Ah | 10YR3/2, very dark grayish brown with many fine distinct mottles + coatings (7.5YR4/6—strong brown) medium-fine granular silty loam. Soil —medium to coarse subangular blocky structure. Moderately moist, slightly firm. Clear basal contact, wavy. Many fine and very fine roots. |
| 20–48 | C(f) | 2.5Y5/2 grayish brown (matrix) with vertically aligned, 3-mm-wide, distinct mottles (2.5Y5/6 light olive brown)—10%. Silty loamy fine to medium sand. Firm. Soil structure—massive to coarse weak subangular blocky. Slightly brittle to friable. Charcoal at vertical 7.8. Clear boundary to the coarse base. |
| 48–113 | 2C(g) | 5Y4/2 olive gray with vertically aligned mottles (2.5Y5/6–7.5YR4/6)—30%–40% vertical. Mottles not clearly associated with roots. Silty loamy very fine sand. Sand gets coarse to the base and less loamy at ~70 cm depth from 0 horizonal. Moist to very moist. Soil—very weak subangular to massive structure. Sediment—subtle lamination, poorly sorted. Loose and friable. Few fine roots. At vertical 0, there is 4-cm-thick medium sand [2C(g)-a], well sorted. Loose and moist. Sharp boundary at base, top boundary sharp but not as much. Mottling throughout going from top; does not look like dike but fluvial. |
| 2C | 5Y4/3 olive, loose, massive fine sand. Moderately moist, single grain. |
There are no notes for this trench description.
* Soil description at vertical line 7; 2c(g) described at vertical removes from Hardwicks 6 and 0.
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