Neogene sandstone and conglomerate cropping out along the eastern end of Beaver Bay at Cape Aliaksin have been assigned to the Unga Conglomerate Member of the Bear Lake Formation. New data suggest that this correlation may be incorrect.
The rocks at Cape Aliaksin consist of more than 250 m of interbedded sandstone and subordinate conglomerate overlain by volcanics. Sandstones are dominately cross-stratified tabular and sigmoidal beds. Paleo-currents are bimodal with a dominant north to south transport direction. Marine fossils are dispersed through the sandstones. Conglomerates are thin beds of cobble to boulder clasts. Some show southward imbrication; others are inversely...
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