Alaska Volcano Observatory

Characterized by a general lack of bedding, sharp, bounding contacts, and its mixture with lake sediments. The majority of this unit is composed of reworked tephra and lake sediment. Characterized by platy glass shards of both brown and colorless glass. The glass is minorly phenocrystic with cylindrical, conical and equant vesicles. Bubble wall junctions are also present in the glass shards.

Sample Location:

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Legend

	Red (Warning)
	Orange (Watch)
	Yellow (Advisory)
	Green (Normal)
	Uninstrumented

200 km

100 mi

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References Cited

[1] A record of late Holocene glacier fluctuations, Ahklun Mountains, southwestern Alaska, 2002

Levy, L.B., 2002, A record of late Holocene glacier fluctuations, Ahklun Mountains, southwestern Alaska: Northern Arizona University M.S. thesis, 71 p.

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