Sample: Tephra 13A Arce

Sample ID:	Tephra 13A Arce ^[1]
Station ID:	Ash Station 13 Arce
AT Num:
Volcano:	Makushin
Possible source:
Eruption:
Collector:	Arce, G. N.
Date sampled:	1982-00-00
Sample type 1:	Tephra Fall
Color:
Final unit:
Text Description:	Glacial outwash/till deposits, subangular to well rounded boulders and cobbles and pebbles of accessory lithics + accidental lithics + welded tuff, and sand consisting of accessory lithics + scoria + plagioclase + hypersthene + augite. Sharp upper contact. Orange color in the field, grayish black color after cleaning. Roughly 2.2 m thick.
Sample Location:

References Cited

[1] Volcanic hazards from Makushin Volcano, northern Unalaska Island, Alaska, 1983

Arce, G. N., 1983, Volcanic hazards from Makushin Volcano, northern Unalaska Island, Alaska: University of Alaska Fairbanks unpublished M.S. thesis, Fairbanks, AK, 142 p., 2 sheets, scale unknown.

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137 and G23AC00070.

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.