Nueva fuente de obsidiana en la región de la araucanía, centro-sur de Chile: Química y contexto arqueológico de la obsidiana riolítica negra de los Nevados de Sollipulli

Abstract

A dome of black rhyolite obsidian outcrops among other volcanic rocks at south latitude 38.97716° and west longitude 71.63528°, within the Nevados de Sollipulli, west of the Sollipulli volcano and south of the town of Melipeuco in south-central Chile. Worked fragments of this same obsidian are found at the surface in a number of archaeological sites in the area. This obsidian is both visually and chemically distinct from translucent grey-green derived from the Chaitén volcano further south in the Andean chain.