Anangula: A Geologic Interpretation of the Oldest Archeologic Site in the Aleutians

Abstract
Anangula preserves remains of a lamellar flake industry probably between 8000 and 12,000 years old because of a unique combination of geologic factors. The most important are the relation of land and sea in this region in the past, when the sea level was lower than at present, and the relatively slight erosion by the sea today.