Sample: 84Au-9

Sample ID:	84Au-9 ^[1]
Station ID:	84Au-9
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, porphyritic sample of prehistoric Dome H. Phenocrysts of plagioclase, hypersthene, augite, and minor olivine and hornblende. Hornblende is opacite-rimmed and also may be rimmed by a fine-grained intergrowth of plagioclase+Fe-Ti oxide + orthopyroxene. Groundmass is holocrystalline and composed of plagioclase microlites, Fe-Ti oxides, and pyroxenes.
Sample Location:

References Cited

[1] Petrology, geochemistry, and the evolution of magmas from Augustine Volcano, Alaska, 1986

Daley, E. E., 1986, Petrology, geochemistry, and the evolution of magmas from Augustine Volcano, Alaska: University of Alaska Fairbanks unpublished M.S. thesis, Fairbanks, AK, 103 p.

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