Sample: 84Au-110

Sample ID:	84Au-110 ^[1]
Station ID:	84Au-110
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:	Sample of Kamishak dome. Plagioclase, hornblende, hypersthene, augite, olivine, and minor Fe-Ti oxide phenocrysts in a fine grained holocrystalline groundmass of plagioclase microlites, Fe-Ti oxides, and pyroxenes. Hornblende is euhedral to subhedral, opacite-rimmed, and occasionally being replaced by hypersthene. This sample contains several xenoliths with similar mineralogy but very little groundmass. Hornblende in these xenoliths is very elongate and average grain size is smaller than in the host.
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Petrology, geochemistry, and the evolution of magmas from Augustine Volcano, Alaska: University of Alaska Fairbanks unpublished M.S. thesis, Fairbanks, AK, 103 p.

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