This 24 April 1991 aerial photo shows deposits from the 1991 eruption of Colima in the lower part of the Barranca El Cordobán on the south flank. The deposits at the bottom of the photo with rounded flow fronts and well-defined levees originated from block-and-ash flows. The darker, more recent deposits near the top of the photo contain a higher amount of juvenile (fresh magmatic) material.

Photo by Jean-Christophe Komorowski, 1991(Arizona State University).

This image is made available under the Creative Commons BY-NC-ND 4.0 license terms.

Keywords: block-and-ash flow | pyroclastic density current (PDC) | deposit | levee

Colima