Preliminary Geologic Report on the 1961 U.S. Expedition to Bellingshausen Sea, Antarctica

Five areas of outcrop were examined along 120 miles of the coast of the Bellingshausen Sea east of the Thurston Peninsula. Hornblende quartz diorite is the principal rock in the area and occurs in a body of batholithic dimensions. The quartz diorite contains inclusions of older granulitic rock and is cut by mafic dikes. An island in Paradise Harbor on the Palmer Peninsula was also examined briefly.