Panguipulli Formation

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Panguipulli Formation
Stratigraphic range: Triassic
TypeGeological formation
UnderliesQuaternary sediments and lavas
Estratos de Lago Ranco
Thicknessmore than 800 m (2,600 ft)
Lithology
PrimarySandstone, mudstone, conglomerate
Location
RegionAraucanía Region
Los Ríos Region
Country Chile
Type section
Named forPanguipulli
Named byAguirre & Levi
Year defined1964

Panguipulli Formation (Spanish: Formación Panguipulli) is a sedimentary formation of Triassic age located in Los Ríos Region and southernmost Araucanía Region in south–central Chile. The formation is variously covered by Quaternary lavas in the east and Quaternary moraines, Holocene alluvium and colluvium in the west. The formation and make up possibly the remnants of an ancient lake and river system. The formation is named after the town of Panguipulli on the western edge of Panguipulli Lake. The formation has evidence of low grade metamorphism and is locally intruded by plutons of the North Patagonian Batholith that are of Jurassic, Cretaceous and Miocene age.[1]

References[edit]

  1. ^ Herbst, Rafael; Troncoso, Alejandro; Muñoz, Jorge (2005). "Las tafofloras triásicas de la región de los Lagos, Xma Región, Chile". Ameghiniana (in Spanish). 42 (2).