Adagdak, Aleutian Islands, Alaska

Location: 52.0N, 176.6W
Elevation: 2,115 feet (645 m)

Aerial view of Adagdak from the north. Photo by U.S. Navy. Plate 13 of Coats (1956).

Adagdak is a Holocene stratovolcano that has not erupted in historic time. Adagdak, Andrew Bay, and Moffett form the northern peninsula of Adak Island. Adagdak is made a lower shield, a small stratovolcano, and, at the summit, a small andesite plug.


Sources of Information:

Coats, R.R., 1956, Geology of northern Adak Island, Alaska: U.S. Geological Survey Bulletin 1028-C, p. 43-66.

March, B.D., 1976, Some Aleutian andesites: their nature and source: Journal of Geology, v. 84, p. 27-42.

Simkin, T., and Siebert, L., 1994, Volcanoes of the World: Geoscience Press, Tucson, Arizona, 349 p.

Wood, C.A., and Kienle, J., 1993, Volcanoes of North America: Cambridge University Press, New York, 354 p.



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