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Global Volcanism Program | Image GVP-06906

The NW side of Nevados Ojos del Salado volcano rises above Pliocene ignimbrites and pyroclastic deposits of the Barranca Blanca.  These deposits are overlain by dacitic pyroclastic-flow deposits from Ojos del Salado.  A break in slope about half way up the volcano is the rim of a somma, inside which the modern edifice was constructed.  Dacitic lava flows from the summit cone periodically overtopped the somma rim. Photo by Oscar González-Ferrán (University of Chile).

The NW side of Nevados Ojos del Salado volcano rises above Pliocene ignimbrites and pyroclastic deposits of the Barranca Blanca. These deposits are overlain by dacitic pyroclastic-flow deposits from Ojos del Salado. A break in slope about half way up the volcano is the rim of a somma, inside which the modern edifice was constructed. Dacitic lava flows from the summit cone periodically overtopped the somma rim.

Photo by Oscar González-Ferrán (University of Chile).


Ojos del Salado, Nevados