| Cerro Plataforma Formation | |
|---|---|
| Stratigraphic range: Early Miocene | |
| Type | Geological formation |
| Underlies | Mid Miocene volcaniclastics |
| Overlies | Divisadero Group |
| Thickness | 130 m (430 ft) |
| Lithology | |
| Primary | Sandstone, siltstone, conglomerate |
| Location | |
| Coordinates | 42°21′29.0″S 71°48′09.6″W / 42.358056°S 71.802667°W |
| Region | Chubut Province |
| Country | Argentina |
| Extent | Patagonian Andes |
| Type section | |
| Named for | Cerro Plataforma |
  Cerro Plataforma Formation (Argentina) | |
The Cerro Plataforma Formation is a sedimentary formation cropping out at Cerro Plataforma south of Puelo Lake in the Andes of Argentine Patagonia.[1] The formation contains marine fossils of bivalves, gastropods and echinoderms.[1]
To the southwest in Chile lies the geologically equivalent La Cascada Formation.[1]
References
- 1 2 3 Encinas, Alfonso; Folguera, Andrés; Bechis, Florencia; et al. (2018). "The Late Oligocene–Early Miocene Marine Transgression of Patagonia". In Folguera, A.; Contreras Reyes, E.; Heredia, N.; et al. (eds.). The Evolution of the Chilean-Argentinean Andes. Springer. pp. 443–474. ISBN 978-3-319-67774-3. Retrieved 2018-09-11.
Further reading
- Orts, D. L.; A. Folguera; A. Encinas; M. Ramos; J. Tobal; V. A. Ramos (June 2012). "Tectonic development of the North Patagonian Andes and their related Miocene foreland basin (41°30'-43°S)". Tectonics. 31 (3): TC3012. doi:10.1029/2011TC003084. hdl:11336/68465.
Major South American geological features | |||||
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| Tectonic plates |  | ||||
| Cratons and shields | |||||
| Structures undergoing subduction | |||||
| Faults and shear zones | |||||
| Rifts and grabens |
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| Sedimentary basins |
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| Orogenies |
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| Metallogenetic provinces | |||||
| Volcanism |
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