“…Numbers correspond to numbered dredge locations in figure 4 and Tables 3-6. From Plafker and others, 1980. refraction and reflection data, show that Paleogene rocks underlie much of the Yakataga and Middleton segments, and are present at shallow depths beneath the Middleton segment (Bayer and others, 1978;Bruns 1979Bruns , 1982Bruns and Schwab, in press;others, 1980, 1982). Rocks of Eocene and Oligocene age were penetrated in the lower part of the Tennaco Middleton Island Well, drilled on state lands near Middleton Island (Rau and others, 1977).…”