Sample: AK-81-1

Sample ID:	AK-81-1 ^[1]
Station ID:	AK-81-1
AT Num:
Volcano:	Akutan
Possible source:
Eruption:
Collector:	Unknown, Unknown
Date sampled:	1981-01-01
Sample type 1:	Lava
Color:
Final unit:
Text Description:	Large dike 10 to 15 meters wide east of Lava Peak. In hand specimen, it is coarsely porphyritic, containing large clinopyroxene and plagioclase phenocrysts in a fine-grained groundmass. In thin section, the dike contains the same mineral assemblage as the Lava Peak flows; randomly oriented phenocrysts of olivine, clinopyroxene, and plagioclase in a groundmass of opaque minerals, clinopyroxene, and plagioclase laths.
Sample Location:

References Cited

[1] The igneous petrology and geochemistry of northern Akutan Island, Alaska, 1982

Romick, J. D., 1982, The igneous petrology and geochemistry of northern Akutan Island, Alaska: University of Alaska Fairbanks unpublished M.S. thesis, 151 p.

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