Contents: Lithic Tool Basal Treatment Coding Index
Primary Key: CD_BASE
Columns:
| Name | Type | Size | Contents |
| CD_BASE | NUMBER | Integer | Basal treatment code |
| TEXT | VARCHAR | 100 | Basal treatment description |
Codes:
| CD_BASE | TEXT |
| -9 | Indeterminate |
| 0 | Not applicable |
| 1 | Concave |
| 2 | Convex |
| 3 | Straight |