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Bogoslof Volcano, USA
Lava dome remnants from three historical eruptions can be seen in this NW-looking aerial view of Bogoslof Island in the Aleutians.
The pinnacle on the left is Castle Rock, also referred to as Old Bogoslof, a remnant of a 1796 lava dome.
The circular, flat-topped area to its right is a remnant of a 1927 lava dome.
The most recent eruption of Bososlof, in 1992, produced the light-colored conical lava dome forming the tip of the island at upper right.
Frequent eruptions and vigorous wave erosion have greatly modified the island in historical time.
PHOTO SOURCE: Chris Nye 1994, Alaska Division of Geological & Geophysical Surveys, courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.
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