1. Ahrens, L. H., and S. R. Taylor: Spectrochemical analysis, 2nd ed. Reading, Mass.: Addison-Wesley 1961.
2. Blake, D. H.: Post miocene volcanoes on Bougainville Island, territory of Papua and New Guinea. Bull. Volcanol. 32, 121?138 (1968).
3. -, and Y. Miezitis: Geology of Bougainville and Buka Islands, New Guinea. Australia, Bur. Mineral Resources, Geol. Geophys. Bull. 93 (1967).
4. Coats, R. R.: Magma type and crustal structure in the Aleutian Arc. Crust of the Pacific Basin. A.G.U. Monograph 6, 92?109 (1962).
5. Dickinson, W. R.: Tectonic development of Fiji. Tectonophysics 4, 543?553 (1967).