TY - SER AU - Pennec,Jean-Luc AU - Fernández,Angel TI - Fragmental lava versus welded ignimbrite on Mount Etna: arguments inferred from crystal preferred orientation KW - Volcanologie KW - Ignimbrite KW - Lave KW - Rhéologie KW - Quaternaire KW - Italie KW - Sicilia KW - Volcan Etna N1 - bibliogr. p. 336-337 ER -