@base . a , , ; , , ; "Newsletter of the Marine Geosciences Division, Geological Association of Canada." ; ; ; "1191-3258" ; ; "1191-3258" ; ; "1191-3258" ; "Newsletter of the Marine Geosciences Division, Geological Association of Canada" , "Newsletter of the Marine Geosciences Division, Geological Association of Canada." ; . a ; . . "Canada" . a ; ; "20040609183800.0"^^ ; ; . a ; "1191-3258" ; . a . a ; "1191-3258" ; . a , ; "Newsletter of the Marine Geosciences Division, Geological Association of Canada" .