Sample: 84Au-106
Sample ID: | 84Au-106 [1] |
Station ID: | 84Au-106 |
AT Num: | |
Volcano: | Augustine |
Possible source: | |
Eruption: | |
Collector: | Daley, E. E. |
Date sampled: | 1984-01-01 |
Sample type 1: | Lava |
Color: | |
Final unit: | |
Text Description: | Massive sample of Dome I. Phenocrysts of plagioclase, hypersthene, augite, olivine, and Fe-Ti oxide in a holocrystalline groundmass of plagioclase microlites, Fe-Ti oxides, and minor pyroxenes. Olivine contains Cr-spinel, is slightly altered along fractures, and is either surrounded by a faint zone of dusty alteration or by a reaction rim of pyroxene+plagioclase+Fe-Ti oxide. |
Sample Location: |