AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 84Au-7

SAMPLE INFO : 84Au-7
Sample ID:84Au-7
Station ID:84Au-7
Latitude:59.3618
Longitude:-153.437
Datum:NAD83
Date Sampled:1984-01-01
Sample Type 1:Lava
Text Description:
Slightly vesicular sample of prehistoric spines. Phenocrysts of plagioclase, hypersthene, augite, minor skeletal olivine, and a trace of opacite-rimmed hornblende in a microcrystalline groundmass of plagioclase microlites, Fe-Ti oxides, and pyroxenes. Plagioclase glomerocrysts are common and plagioclase often has inclusions of brown partially devitrified glass

References:
Petrology, geochemistry, and the evolution of magmas from Augustine Volcano, Alaska

GEOCHEM DATA