Contents: Stratum Coding Index
Primary Key: CD_STRATUM
Columns:
| Name | Type | Size | Contents |
| CD_STRATUM | VARCHAR | 4 | Stratum code |
| TEXT | VARCHAR | 100 | Stratum description |
Codes:
| CD_STRATUM | TEXT |
| 0 | Surface |
| 1 | Plow zone |
| 10 | Undifferentiated structure fill |
| 10A | natural differentiation within strata 10 |
| 10B | natural differentiation within strata 10 |
| 11 | Roof/wall fall |
| 11A | Fill |
| 11B | Fill |
| 11C | natural differentiation within strata 11 |
| 11D | natural differentiation within strata 11 |
| 11E | natural differentiation within strata 11 |
| 11F | natural differentiation within strata 11 |
| 11G | natural differentiation within strata 11 |
| 12 | Under Stratum 11, above Stratum 20 |
| 13 | Roof/Wall fall below Stratum 12 |
| 14 | Under Stratum 13 |
| 15 | Wall clearing |
| 16 | Within room wall |
| 18 | Roof/wall fall surface |
| 18A | natural differentiation within strata 18 |
| 19 | Floor fill |
| 19A | Floor fill between Strata 20 and 20A |
| 19B | Floor fill below Stratum 11 |
| 19R | Floor fill that includes roof/wall fall material |
| 2 | Alluvium |
| 20 | Floor(direct contact only) |
| 20A | Fill |
| 20D | Floor -- Artificial Stratum |
| 21 | Floor |
| 3 | Bedrock |
| 30 | Fill of unsealed secondary feature within a house |
| 30A | natural differentiation within strata 30 |
| 31 | Fill of sealed secondary feature within a house |
| 4 | Sheet Trash |
| 40 | Sealed undifferentiated house fill |
| 41 | Sealed roof/wall fall |
| 42 | Sealed, under Stratum 41, above Stratum 21 |
| 49 | Sealed floor fill |
| 49R | Sealed floor fill that includes roof/wall fall material |
| 4A | natural differentiation within strata 4 |
| 5 | Alluvium below floor |
| 50 | Fill of unsealed extramural feature |
| 50A | Fill of unsealed extramural feature |
| 50B | natural differentiation within strata 50 |
| 50C | natural differentiation within strata 50 |
| 51 | Extramural occupation surface |
| 52 | Sealed extramural occupation surface |
| 53 | Sealed extramural occupation surface |
| 54 | Sealed extramural occupation surface |
| 55 | Sealed extramural feature |
| 55A | Sealed extramural feature |
| 60 | Compound/Plaza interior fill |
| 60A | Fill |
| 61 | Wall fall within compound/plaza |
| 61E | Wall fall outside compound/plaza |
| 62 | Under Stratum 61 above Stratum 70 |
| 65 | Compound wall clearing |
| 66 | Within compound wall construction |
| 69 | Interior compound surface fill |
| 69B | Interior compound surface fill, beneath wall fall |
| 69R | Interior compound surface fill, within wall fall |
| 70 | Compound/Plaza interior surface |
| 80 | Any major disturbed context |
| 85 | Platform mound fill |
| 85A | natural differentiation within strata 85 |
| 85B | natural differentiation within strata 85 |
| 85C | natural differentiation within strata 85 |
| 85D | natural differentiation within strata 85 |
| 85E | natural differentiation within strata 85 |
| 85F | natural differentiation within strata 85 |
| 85G | natural differentiation within strata 85 |
| 85H | natural differentiation within strata 85 |
| 85I | natural differentiation within strata 85 |
| 85 | natural differentiation within strata 85 |
| 85P | natural differentiation within strata 85 |
| 85X | natural differentiation within strata 85 |
| 9 | Strat pit collections |
| 90 | Surface within platform mound |
| 90A | natural differentiation within strata 90 |
| 95 | Fill below platform mound |
| 96 | Sealed fill below platform mound |
| 96A | natural differentiation within strata 96 |
| 96D | natural differentiation within strata 96 |
| 99 | Unknown context |