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USGS analysis presents a composite spectral map for characterizing the pre-Cenozoic basement beneath Alaska's Yukon Flats basin. The map integrates reduced-to-the-pole magnetics, magnetic potential, and basement gravity data to infer lithology and structure across the 46,000 km² basin. This dataset supports assessment of undiscovered hydrocarbon resources for remote Alaskan communities.
Primary data product is an interpreted composite image/map; underlying raw potential field data files may not be included.