| Latest Quaternary (less than 15 ka),Well Constrained |
| Latest Quaternary (less than 15 ka),Moderately Constrained |
| Late Quaternary (less than 130 ka),Well Constrained |
| Late Quaternary (less than 130 ka),Moderately Constrained |
| Middle to Late Quaternary (less than 1.8 Ma),Well Constrained |
| Middle to Late Quaternary (less than 1.8 Ma),Moderately Constrained |
| Quaternary - Class B (less than 2.6 Ma),Well Constrained |
| Quaternary - Class B (less than 2.6 Ma),Moderately Constrained |
| Quaternary - Class B (less than 2.6 Ma),concealed |
| Unspecified Cenozoic (less than 66 Ma),Well to Moderately Constrained |
| Unspecified Cenozoic (less than 66 Ma),concealed |