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Santiago Volcano, Ecuador
Cabo Cowan is a tuff cone at the NW tip of Santiago Island in the Galapagos Islands.
Its summit crater is breached to the SW, where wave erosion has truncated the flanks of the cone, forming vertical sea cliffs that expose its interior.
The 284-m-high tuff cone was constructed by submarine eruptions where the NW-trending rift zone along the crest of Santiago shield volcano encounters the sea.
PHOTO SOURCE: Lee Siebert 1978, courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.
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