| Depth (cm) | Unit Name | Description* | Notes |
|---|---|---|---|
| 0–13 | C | 5Y4/1 (dark gray), very fine sand, loose sharp wavy lower contact (liquefaction deposits) | |
| 13–36 | Ah | 10YR 4/2 (dark grayish brown), silty loam, friable, moderately developed, very fine structure, clear smooth lower boundary | |
| 36–55 | Bw(f) | 2.5Y 4/3 (olive brown) with few fine distinct, 7.5YR5/6 (strong brown) mottles; soil—weak coarse blocky structure, loamy silt turning to loamy very fine sand at the base, upward fining sequence, very friable, clear wavy boundary | |
| 55–59 | 2bBp | 2.5YR 5/1 (gray) silty loam, friable, abrupt wavy contact | |
| 59–94 | 2bCg | 2.5Y4/2 (dark grayish brown) with common coarse prominent 5YR5/6 (yellowish red) vertically aligned mottles following root channels, mottling also follows 5–10-mm-thick horizontal lamination of slightly coarse sediments; soil—weak very coarse blocky to massive structure, loamy silt | |
| 94–116 | 3bCg | Alternating of very fine sand (2.5Y4/2; dark grayish brown) and loamy silt (2.5Y5/1, gray), centimeter- to decimeter-scale beds, with common coarse distinct 7.5YR4/4 (brown) vertically aligned mottles following root channels | |
| 116–180 | 4b2Cg | 2.5Y5/1 (gray) with common coarse distinct 5YR4/6 (yellowish red) mottles elongated along roots, very fine sandy silt to loamy silt; soil–massive structure, sediment—massive, friable | |
| 180–205 | 4b2CR | Silty loam with preserved roots | Auger from here |
| 205–266 | 5b3A | 2.5Y4/2 (dark grayish brown) silty loam | |
| 266–315 | 5Bg | 2.5Y5/1 (gray) silty clay | Radiocarbon sample: HWK-1-1 |
| 315–375 | 6 | Very fine sandy silt | |
| 375+ | 7 | Sands |
*Soil description is at the 2 m vertical line; the top of the trench is 45 cm above horizontal 0.5.
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