Geologic interpretation of reconnaissance aeromagnetic survey of northeastern Alaska

Aeromagnetic surveys of Naval Petroleum Reserve No. 4 (Woolson and others, 1962) and of a 900-square-mile area near Fairbands (Andreasen and others, 1964) are the only published aeromagnetic reports on northeastern Alaska.

Several total intensity aeromagnetic profiles, primarily over the Yukon Flats in the central part of the area shown on figure 1, were obtained by the U.S. Geological Survey in 1954 and 1958 and were released for public inspection in 1960 (Andreasen, 1960a, 1960b). Most of these profiles were flown north and south at a barometric elevation of about 2,500 feet; some were flown north and south at 4,000 to 8,000 feet. All of these north-trending profiles are incorporated in this report. Six northwest-trending profiles parallel to the Yukon River between long. 147° W and 144° W. are not included.