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Sample: AK-81-23

Sample ID: AK-81-23 [1]
Station ID: AK-81-23
AT Num:
Volcano: Akutan
Possible source:
Eruption:
Collector: Unknown, Unknown
Date sampled: 1981-01-01
Sample type 1: Lava
Color:
Final unit:
Text Description: Porphyritic, partially altered andesite lava flow. The rock contains clinopyroxene, orthopyroxene, and plagioclase phenocrysts in a trachytic groundmass which is partially altered to carbonate
Sample Location:
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Legend
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Red (Warning)
Orange (Watch)
Yellow (Advisory)
Green (Normal)
Uninstrumented

50 km
30 mi
Leaflet U.S. Department of the Interior | U.S. Geological Survey | Policies

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J. D., 1982, The igneous petrology and geochemistry of northern Akutan Island, Alaska: University of Alaska Fairbanks unpublished M.S. thesis, 151 p.