San Juan Formation, Argentina
| San Juan Formation Stratigraphic range: Ordovician | |
|---|---|
| Type | Formation |
| Overlies | La Silla Formation |
| Thickness | 300–400 m |
| Lithology | |
| Primary | Limestone, marl |
| Location | |
| Region | San Juan Province |
| Country | Argentina |
The San Juan Formation (Spanish: Formación San Juan) is a geologic formation in Argentina. It preserves fossils dating back to the Ordovician period. The formation crops out in the Precordillera of San Juan Province.[1]
References
- ↑ Sánchez, Teresa M.; Carrera, Marcelo G.; Benedetto, Juan Luis (1996). "Variaciones faunísticas en el techo de la formación San Juan (Ordovícico Temprano, Precordillera Argentina): Significado paleoambiental". Ameghiniana (in Spanish) 33 (2): 185–200.
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