Koch, R.D., and Elliott, R.L., 1984, Late Oligocene gabbro near Ketchikan, southeastern Alaska, in Coonrad, W.L., and Elliott, R.L., eds., The United States Geological Survey in Alaska; accomplishments during 1981: U.S. Geological Survey Circular 868, p. 125-125.
This publication is part of a larger work. Please see C 868 for more information.
Bedrock; Generalized; Geology