SEDIS - Thesaurus
upper Archean  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Precambrian | |
| ..Archean | |
| ...upper Archean | |
| NT | Amitsoq Gneiss |
| Qorqut Granite | |
| RT | Ventersdorp Supergroup |
| Fortescue Group | |
| Levack Gneiss | |
| SN | Added to Thesaurus in 1985. |
Copyright © 2006-2007 IODP-MI