La Cascada Formation: Difference between revisions
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[[Category:Geology of Los Lagos Region]] |
[[Category:Geology of Los Lagos Region]] |
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[[Category:Miocene Series of South America]] |
[[Category:Miocene Series of South America]] |
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[[Category:Neogene Chile]] |
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[[Category:Oligocene South America]] |
[[Category:Oligocene South America]] |
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[[Category:Oligocene Series of South America]] |
[[Category:Oligocene Series of South America]] |
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[[Category:Paleogene Chile]] |
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Revision as of 18:49, 27 August 2018
| La Cascada Formation | |
|---|---|
| Stratigraphic range: Late Oligocene–Early Miocene | |
| Type | Geological formation |
| Overlies | Cretaceous granitoids Divisadero Group Lower Jurassic volcanic rocks |
| Thickness | 130 m (430 ft) |
| Lithology | |
| Primary | Sandstone, siltstone, conglomerate |
| Location | |
| Region | Los Lagos Region |
| Country | Chile |
| Type section | |
| Named by | Thiele et al., 1978 |
La Cascada Formation a sedimentary formation near Futaleufú in the western Patagonian Andes of southern Chile. Lithologies vary from sandstone, siltstone and conglomerate. The sediment that now forms the rock deposited during the Oligocene and Early Miocene epoch in shallow marine environment. The formation contain fossils of bivalves and gastropods.[1]
The formation unconformably overlies sedimentary rock of Jurassic age, Cretaceous sedimentary rocks of Divisadero Group and Cretaceous granite plutons.[1][2]
Further south in Aysén Region Guadal Formation is a geologically equivalent formation.[1]
References
- ^ a b c Encinas, Alfonso; Folguera, Andrés; Bechis, Florencia; Finger, Kenneth L.; Zambrano, Patricio; Pérez, Felipe; Benarbé, Pablo; Tapia, Francisca; Riffo, Ricardo; Buatois, Luis; Orts, Darío; Nielsen, Sven N.; Valencia, Victor V.; Cituño, José; Oliveros, Verónica; De Girolamo Del Mauro, Lizet; Ramos, Víctor A. (2018). "The Late Oligocene–Early Miocene Marine Transgression of Patagonia". The Evolution of the Chilean-Argentinean Andes. Springer. pp. 443–474. ISBN 978-3-319-67774-3.
{{cite book}}: Unknown parameter|editors=ignored (|editor=suggested) (help) - ^ Charrier, Reynaldo; Pinto, Luisa; Rodríguez, María Pía (2006). "3. Tectonostratigraphic evolution of the Andean Orogen in Chile". In Moreno, Teresa; Gibbons, Wes (eds.). Geology of Chile. Geological Society of London. p. 107. ISBN 9781862392199.
