A quarry exposes red, oxidized scoria deposits with interbedded lighter lava flow units (possibly due to surface alteration) at Cerro la Leona scoria cone on the northern rim of Coatepeque caldera. The stratigraphy of the adjacent Cerro la Leona and Cerro Cañitas cones on the NE caldera rim were exposed by the caldera ring faults. At least ten other scoria cones on the eastern and southern caldera rims overlap ring faults.

Photo by Lee Siebert, 2002 (Smithsonian Institution).

This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.

Keywords: stratigraphy | scoria | outcrop | geology

Coatepeque Caldera