Hesperian
E1966075
UNEXPLORED
The Hesperian is a middle period in Mars' geologic history characterized by widespread volcanic activity and the formation of extensive lava plains and outflow channels.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hesperian canonical | 1 |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.