Distribution of Narrow-Width Magnetic Anomalies in Antarctica

Science  22 May 1964:
Vol. 144, Issue 3621, pp. 993-995
DOI: 10.1126/science.144.3621.993


Data for aeromagnetic profiles obtained in Antarctica during the 1963-64 austral summer were used together with earlier results to construct a map showing the areal distribution of narrow-width magnetic anomalies. Numerous anomalies are associated with known volcanic mountains in western Antarctica. A large area of few anomalies is probably a result of an extension of the thick metasedimentary section observed in the Ellsworth Mountains. Portions of the Trans-Antarctic Mountains have associated anomalies which are probably caused by late Cenozoic volcanic rocks.