1. Because of the great number of bibliographical references on ignimbrites, the listing hereafter includes the reference cited in this work only and the most significant papers on the genesis of ignimbrite. For a complete bibliography (up to 1961) on the subject, see:Cook, E. F., 1962,Ignunbrite Bibliography and Review. Idaho Bureau of Mines and Geol., Moscow, Idaho, U.S.A.
2. Aramaki, S., 1957 —Classification of Pyroclastic flows. Bull. Volc. Soc. Japan, Ser. 2, Vol. I, pp. 47–57; English trans. in International Geol. Review, Vol. 3, pp. 518–524, 1961.
3. —————, 1963 —Pyroclastic flows in Japan. Bull. Volc., Tome 26, pp. 89–99, Napoli.
4. Bordet, P., 1958 —A propos des ignimbrites, C.R. Soc. Géol. Fr., p. 77.
5. -----,Marinelli, G., Mittempergher, M., Tazieff, H., 1963 —Contribution à l’étude volcanologique du Katmai et de la Vallée des Dix Mille Fumées (Alaska). Mem. Soc. Belge de Geol. de Pal. et d’Hydr., Série IN-8°, No. 7, pp. 1–70, Bruxelles.