Glaciares de Chile


"Field guide. Volcán Villarrica-Chile. January 30, 2010"

Clavero, J.; Rivera, A.; Bown, F.; Bravo, C. & Barandun, M. (2010) : «Field guide. Volcán Villarrica-Chile. January 30, 2010» International Glaciological Conference, Ice and Climate Change; A view from the South. VICC. February 1-3, 2010, CECS, Valdivia, Chile.

Resumen / Abstract.

Volcán Villarrica is located in the modern Southern Volcanic Zone (SVZ) of the Chilean Andes at 39°30’S, being one of the most active in Chile in historical times (Petit-Breuilh and Lobato, 1994). It forms a NW-SE volcanic chain together with the Pleistocene-Holocene Quetrupillán and Lanín stratovolcanoes which is oblique to the recent volcanic arc and main «Liquiñe-Ofqui Fault Zone» (LOFZ; Figure 2; Hickey et al., 1989; Cembrano, 1990; Cembrano et al., 1992; Cembrano and Moreno, 1994; López Escobar et al., 1995; Cembrano et al., 2000). The Middle?-Late Pleistocene to Historic compound Villarrica stratovolcano and its products cover an area of more than 700 km² (Moreno, 1993 and 2000), being characterised by a conical shape with a 200m diameter open crater and small lava lake showing weak strombolian activity (Witteretal, 2004). Its altitude reaches 2,847 m a.s.l. According to morphostructural and stratigraphic criteria, Volcán Villarrica edifice has been divided into three evolution stages which are described below.