Global Volcanism Program | Image GVP-05038
This photo portrays an unusual combination of geology and history. The light-colored deposits in this outcrop south of St. Pierre are pyroclastic-flow deposits similar to those of eruptions that destroyed the city in 1902. The abundant large holes in the outcrop are not a volcanological phenomenon, but were produced by cannon balls blasted into the unconsolidated deposit during British-French wars for control of the island of Martinique.
Photo by Richard Fiske, 1977 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.