Porunita

It is a cinder cone which rises 90 metres (300 ft) above the surrounding plain and has a diameter of 800 metres (2,600 ft). The cone was constructed by andesite pyroclastic material and features a summit crater. The cone was formed 3.5 million years ago and has been degraded by erosion since then.

Porunita is an inactive volcano in Chile.

Sources

Vergara, Hernan L. "El vulcanismo superior en un sector Andino del Norte Grande de Chile" (PDF). SERNAGEOMIN (in Spanish). p. 175. Archived from the original (PDF) on 2015-11-25.
Gardeweg, M.; Selles, D.; Arcos, R.; Pino, H.; Camacho, J.; Sprohnle, C.; Sanhueza, A.; Mont, A. "Volcanismo del Cenozoico tardío al este de Collahuasi, Región de Tarapacá, Chile" (PDF). SERNAGEOMIN (in Spanish). p. 3.

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