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Global Volcanism Program | Image GVP-07809

Deposits of the 1902 plinian eruption are exposed in a 1-m-thick outcrop 3.2 km south of Llano del Pinal, the saddle between Santa María and Siete Orejas volcanoes.  The pumice is overlain by about 15 cm of finer-grained darker-colored ash.  Most of the outcrop consists of light-colored dacitic pumice fragments.  Pumice fall was reported in Tapachutla, across the Mexican border, and ashfall was reported in Mexico City.   Photo by Bill Rose, 1967 (Michigan Technological University).

Deposits of the 1902 plinian eruption are exposed in a 1-m-thick outcrop 3.2 km south of Llano del Pinal, the saddle between Santa María and Siete Orejas volcanoes. The pumice is overlain by about 15 cm of finer-grained darker-colored ash. Most of the outcrop consists of light-colored dacitic pumice fragments. Pumice fall was reported in Tapachutla, across the Mexican border, and ashfall was reported in Mexico City.

Photo by Bill Rose, 1967 (Michigan Technological University).


Santa María