Vargas Formation

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Vargas Formation" – news · newspapers · books · scholar · JSTOR (September 2020) (Learn how and when to remove this message)

|

Vargas Formation

Stratigraphic range: Late Oligocene–Early Miocene
Type| Geological formation
Lithology
Primary| Black shale, sandstone
Location
Region| Los Lagos Region
Country|  Chile
Type section
Named by| Urbina
Year defined| 2001

The Vargas Formation is a sedimentary formation on the left bank of Palena River in the western Patagonian Andes of southern Chile. The formation is made of black shale and sandstone that deposited in the Late Oligocene or Early Miocene epoch some 26 million years ago. The formation has contact across a fault plane with granitoids of Cretaceous age of the North Patagonian Batholith.[1]

The exposures of Vargas Formation are small and its fossils poorly preserved. Gastropods, bivalves, echinoderms, and planktic foraminifer fossils have been found in the formation.[1]

Hans Steffen was the first to investigate Vargas Formation with his research being published in 1944.[1]

## See also[edit]

* Geology of Chile
* Chaicayán Group
* Ayacara Formation
* La Cascada Formation
* Puduhuapi Formation

## References[edit]

1. ^ 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". 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.

* v
* t
* e

Geology of Chile

Terranes|

* Arequipa-Antofalla
* Chaitenia
* Chilenia
* Chiloé
* Cuyania
* Fitz Roy
* Madre de Dios
* Mejillonia
* Patagonia

Sedimentary
formations
and groups|

| Cenozoic|

| Neogene|

* Abanico Fm.
* Angostura Fm.
* Ayacara Fm.
* Bahía Inglesa Fm.
* Caldera Beds
* Caleta Godoy Fm.
* Caleta Herradura Fm.
* Campanario Fm.
* Chaicayán Gp.
* Cheuquemó Fm.
* Cholchol Fm.
* Chucal Fm.
* Cola de Zorro Fm.
* Coquimbo Fm.
* Cura-Mallín Gp.
* Farellones Fm.
* La Cascada Fm.
* Lacui Fm.
* La Montaña Fm.
* La Portada Fm.
* Lauca Fm.
* Malleco Fm.
* Mininco Fm.
* Navidad Fm.
* Oxaya Fm.
* Parga Fm.
* Puduhuapi Fm.
* Pupunahue Beds
* Quebrada Macusa Fm.
* Ranquil Fm.
* Río Frías Fm.
* San Pedro Beds
* Santo Domingo Fm.
* Temuco Fm.
* Traiguén Fm.
* Trapa-Trapa Fm.
* Tubul Fm.
* Vargas Fm.

|

Paleogene|

* Abanico Fm.
* Azapa Fm.
* Caleta Chonos Fm.
* Cheuquemó Fm.
* Cura-Mallín Gp.
* La Cascada Fm.
* Lebu Gp.
* Loreto Fm.
* Lupica Fm.
* Oxaya Fm.
* Parga Fm.
* Purilactis Gp.
* Pupunahue Beds
* Temuco Fm.
* Vargas Fm.

Mesozoic|

| Cretaceous|

* Baños del Flaco Fm.
* Cerro Colorado Fm.
* Chacarilla Fm.
* Chañarcillo Gp.
* Coihaique Gp.
* Divisadero Gp.
* Dorotea Fm.
* Hornitos Fm.
* La Liga Fm.
* Ñirehuao Fm.
* Punta del Cobre Fm.
* Purilactis Gp.
* Quiriquina Fm.
* Viñita Fm.
* Way Gp.
* Zapata Fm.

|

Jurassic|

* Chacarilla Fm.
* Coihaique Gp.
* Ibáñez Fm.
* La Liga Fm.
* La Negra Fm.
* Nacientes del Biobío Fm.
* Nacientes del Teno Fm.
* Pan de Azúcar Fm.
* Tobífera Fm.

Triassic|

* Canto del Agua Fm.
* Choiyoi Gp.
* Panguipulli Fm.
* Santa Juana Fm.
* Tralcán Fm.

Paleozoic|

* Llano de Chocolate Beds

Batholiths|

* Coastal central Chile
* Elqui-Limarí
* Futrono-Riñihue
* North Patagonian
* Panguipulli
* South Patagonian
* Vicuña Mackenna

Metamorphic
complexes|

* Bahía Mansa
* Belén
* Chañaral
* Choapa
* Chonos
* Cordillera Darwin
* Eastern Andes
* Mejillones
* Puerto Edén
* Punta de Choros
* Quebrada del Carrizo
* Trafún
* Tierra del Fuego

Faults|

* Atacama Fault
* Biobío-Aluminé Fault
* Cachet Fault
* Domeyko Fault
* El Arrayán Fault
* Futrono Fault
* Gastre Fault
* Lanalhue Fault
* Liquiñe-Ofqui Fault
* Magallanes-Fagnano Fault
* Mocha-Villarrica Fault
* Pichilemu Fault
* Reigolil-Pirihueico Fault
* San Ramón Fault
* Valeriano Fault

Geology portal • Chile portal
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template