Zapata Formation

Zapata Formation
Stratigraphic range: Berriasian-Hauterivian
Type Geological formation
Underlies Punta Barrosa & Erezcano Formations
Overlies Tobífera & Springhill Formations
Lithology
Primary Shale
Other Turbiditic sandstone, pyrite
Location
Coordinates 51°06′S 73°18′W / 51.1°S 73.3°W / -51.1; -73.3Coordinates: 51°06′S 73°18′W / 51.1°S 73.3°W / -51.1; -73.3
Approximate paleocoordinates 51°18′S 36°54′W / 51.3°S 36.9°W / -51.3; -36.9
Region Magallanes y la Antártica Chilena & Aysén Regions
Santa Cruz Province
Country  Chile
 Argentina
Extent Magallanes or Austral Basin
Type section
Named for Cerro Zapata

Zapata Formation (Spanish: Formación Zapata) is a sedimentary formation of Lower Cretaceous age in the Magallanes or Austral Basin of Argentina and Chile. Much of the formation is folded and faulted as consequence of the Andean orogeny.[1] In the outcrops of Zapata Formation near Torres del Paine the southernmost fossil of the ichthyosaur species Platypterygius has been found.[2]

References

  1. ↑ Fildani, Andrea, Romans, B.W., Fosdick, J.C., Crane, W.H., and Hubbard, S.M. (2008). Orogenesis of the Patagonian Andes as reflected by basin evolution in southernmost South America, in Spencer, J.E., and Titley, S.R., eds., Ores and orogenesis: Circum-Pacific tectonics, geologic evolution, and ore deposits: Arizona Geological Society Digest 22: 259-268.
  2. ↑ Pardo-Pérez, Judith; Frey, Eberhard; Stinnesbeck, Wolfgang; Fernández, Marta S.; Rivas, Luis; Salazar, Christian; Leppe, Marcelo (2012). "An ichthyosaurian forefin from the Lower Cretaceous Zapata Formation of southern Chile: implications for morphological variability within Platypterygius" (PDF). Palaeoclimate, Palaeobiology, Paleoenvironments. 92: 287–294. doi:10.1007/s12549-012-0074-8. Retrieved 30 August 2016.

Further reading

  • M. R. Schultz, A. Fildani, and M. Suarez. 2003. Occurrence of the Southernmost South American ichthyosaur (Middle Jurassic), Parque Nacional Torres del Paine, Patagonia, southernmost Chile. Palaios 18:69-73
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