アイテム
- Distinguishing criteria
- Excavation
- Accumulation
- Hard
- Original
- Compact
- Friable
- Construction
- Silt
- Loose
- Intentional deposition
- Not original
- Clay
- Cutting
- Soft
- Destruction
- Sand
- Erosion
- Use
- Sandy silt
- Sandy clay
- Silty clay
- Unworked stone
- Worked stone
- Metal