| View in context |
Table 2.22. Lithic ratios by date group. |
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|---|---|---|---|
| Date Group (A.D.) | Debitage/tools | Debitage/cores | Chipped/ground tools |
| 550-750 | 8.7:1 | 42.5:1 | 4.1:1 |
| 700-880 | 7.5:1 | 31.6:1 | 1.9:1 |
| 890-1025 | 18.0:1 | 85.3:1 | 1.5:1 |
| 1030-1130 | 17.1:1 | 64.6:1 | 1.6:1 |
| 1130-1230 | 13.1:1 | 49.7:1 | 1.8:1 |