- installations that are set in place intentionally, and appear as either horizontal surfaces or as ordered aggregation, and
- deposits that can result either from either layering or buildup, or else from an amorphous amassment.
The main typological categories (surfaces, build-up, etc.) are listed according to types as defined in the pertinent section of the Grammar.
| Category | Total | Percentage | Definitions | Sub-Total | Percentage |
|---|---|---|---|---|---|
| buildup | 12 | 75% | accumulation C | 5 | 42% |
| topsoil | 7 | 58% | |||
| fill, dumping, collapse | 2 | 12% | fill | 2 | 100% |
| installation | 2 | 12% | pit | 1 | 50% |
| wall | 1 | 50% | |||
| Total | 16 | 100% | |||