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December, 1980
Article Contents
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Index Terms/Descriptors
- absolute age
- alkali basalts
- ankaramite
- Atlantic Ocean Islands
- Azores
- basalts
- basanite
- Cenozoic
- classification
- complexes
- data
- dates
- electron probe data
- genesis
- geochemistry
- geochronology
- igneous rocks
- K/Ar
- lava
- lava flows
- major elements
- Neogene
- petrology
- Pliocene
- Quaternary
- Sao Miguel Island
- Tertiary
- trachytes
- ultramafic composition
- volcanic rocks
- tristanite
- Nordeste Complex
Latitude & Longitude
