Bukachacha Formation
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| Bukachacha Formation | |
|---|---|
| Stratigraphic range: Barremian ~ | |
| Type | Geological formation |
| Lithology | |
| Primary | Mudstone |
| Other | Tuff |
| Location | |
| Coordinates | 53°00′N 116°54′E / 53.0°N 116.9°E |
| Approximate paleocoordinates | 56°42′N 114°54′E / 56.7°N 114.9°E |
| Region | Zabaykalsky Krai |
| Country | Russia |
| Type section | |
| Named for | Bukachacha |
  Bukachacha Formation (Russia) | |
The Bukachacha Formation is a geological formation in Zabaykalsky Krai, Russia dating to the Early Cretaceous (Barremian). The tuffaceous mudstones of the formation were deposited in a lacustrine environment.