Global Volcanism Program | Image GVP-06905
The dacitic volcanic complex of El Muerto abuts Nevados Ojos del Salado volcano on the east and NE. The summit of this massive complex contains dacitic lava domes and is cut by a 2.5-km-long depression containing a dozen eruptive centers; an additional two dozen centers lie outside the depression. Lava flows from these centers cover an area of 120 sq km. The summit lava domes are of Pleistocene age, but the complex is cut by ENE-trending fractures that formed during Holocene eruptions of Ojos del Salado.
Photo by Oscar González-Ferrán (University of Chile).