Open AccessPetrography of alkaline volcanic-subvolcanic rocks from the Brazilian Fernando de Noronha Archipelago, Southern Atlantic Ocean
Author(s) -
Mabel N. C. Ulbrich
Publication year - 1993
Publication title -
boletim ig-usp. série científica
Language(s) - English
Resource type - Journals
eISSN - 2316-8986
pISSN - 0102-6283
DOI - 10.11606/issn.2316-8986.v24i0p77-94
Subject(s) - geology , trachyte , geochemistry , volcanic rock , petrography , pyroclastic rock , lava , andesites , dike , basalt , peralkaline rock , olivine , volcano , andesite