| 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 750 ka), well constrained |
| Middle to Late Quaternary (less than 750 ka), moderately constrained |
| Quaternary – Undifferentiated (less than 2.6 Ma), well constrained |
| Quaternary – Undifferentiated (less than 2.6 Ma), moderately constrained |
| Quaternary – Undifferentiated (less than 2.6 Ma), concealed |