Puduhuapi Formation

Puduhuapi Formation
Puduhuapi Formation
Stratigraphic range : Miocene
Type	Geological formation
Thickness	c. 35 m (115 ft)
Lithology
Primary	Sandstone , siltstone , conglomerate
Location
Coordinates	42°19′08.1″S 73°14′10.3″W / 42.318917°S 73.236194°W
Region	Los Lagos Region
Country	Chile
Extent	Puduhuapi Island
Type section
Named for	Puduhuapi Island
Named by	Levi et al.
Year defined	1966
	Puduhuapi Formation (Chile)

The Puduhuapi Formation is a sedimentary formation whose only known outcrops are on Puduhuapi Island of the Chiloe Archipelago , west of Chaiten in western Patagonia , Chile. Lithologies vary from sandstone and siltstone to conglomerate . The sediment that now forms the rock deposited during the Miocene no earlier than 23 million years ago. ^[1]

References [ edit ]

^ Encinas, Alfonso; Folguera, Andres; Bechis, Florencia; Finger, Kenneth L.; Zambrano, Patricio; Perez, Felipe; Benarbe, Pablo; Tapia, Francisca; Riffo, Ricardo; Buatois, Luis; Orts, Dario; Nielsen, Sven N.; Valencia, Victor V.; Cituno, Jose; Oliveros, Veronica; De Girolamo Del Mauro, Lizet; Ramos, Victor A. (2018). "The Late Oligocene?Early Miocene Marine Transgression of Patagonia". In Folguera, A.; Contreras Reyes, E.; Heredia, N.; Encinas, A.; B. Iannelli, S.; Oliveros, V.; M. Davila, F.; Collo, G.; Giambiagi, L.; Maksymowicz, A.; Iglesia Llanos, M.P.; Turienzo, M.; Naipauer, M.; Orts, D.; D. Litvak, V.; Alvarez, O.; Arriagada, C. (eds.). The Evolution of the Chilean-Argentinean Andes . Springer. pp. 443?474. ISBN 978-3-319-67774-3 .