Sample: AK-81-38

Sample ID:	AK-81-38 ^[1]
Station ID:	AK-81-38
AT Num:
Volcano:	Akutan
Possible source:
Eruption:
Collector:	Unknown, Unknown
Date sampled:	1981-01-01
Sample type 1:	Lava
Color:
Final unit:
Text Description:	Partially altered porphyritic andesite dike. The rock contains plagioclase, clinopyroxene, and opaque phenocrysts in a fine-grained trachytic groundmass. The phenocrysts are usually in the form of crystal clots.
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J. D., 1982, The igneous petrology and geochemistry of northern Akutan Island, Alaska: University of Alaska Fairbanks unpublished M.S. thesis, 151 p.

Alaska Volcano Observatory

Sample: AK-81-38

References Cited

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