Igneous Rocks of Peter I Island Hemisphere Tectonic Reconstructions
LeMasurier, W. E., and F. A. Wade. In press. Volcanic history in Marie Byrd Land: implications with regard to southern Igneous rocks of Peter I Island hemisphere tectonic reconstructions. In: Proceedings of the International Symposium on Andean and Antarctic Vol- canology Problems, Santiago, Chile (0. Gonzalez-Ferran, edi- tor). Rome, International Association of Volcanology and Chemistry of Earths Interior. THOMAS W. BASTIEN Price, R. C., and S. R. Taylor. 1973. The geochemistry of Dune- Ernest E. Lehmann Associates din Volcano, East Otago, New Zealand: rare earth elements. Minneapolis, Minnesota 55403 Contributions to Mineralogy and Petrology, 40: 195-205. Sun, S. S., and G. N. Hanson. 1975. Origin of Ross Island basanitoids and limitations upon the heterogeneity of mantle CAMPBELL CRADDOCK sources of alkali basalts and nephelinites. Contributions to Department of Geology and Geophysics Mineralogy and Petrology, 52: 77-106. The University of Wisconsin, Madison Sun, S. S., and G. N. Hanson. 1976. Rare earth element evi- Madison, Wisconsin 53706 dence for differentiation of McMurdo volcanics, Ross Island, Antarctica. Contributions to Mineralogy and Petrology, 54: 139-155. Peter I Island lies in the southeastern Pacific Ocean at 68°50S. 90°40W. about 240 nautical miles off the Eights Coast of West Antarctica. Ris- ing from the continental rise, it is one of the few truly oceanic islands in the region. Few people have been on the island, and little is known of its geology. Thaddeus von Bellingshausen discovered and named the island in 1821, and it was not seen again until sighted by Pierre Charcot in 1910. A Nor- wegian ship dredged some rocks off the west coast in 1927, and persons from the Norvegia achieved the first landing in 1929.
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