Alaska Volcano Observatory

Coarse fraction of vitrophyre and accretionary (?) lapilli. Sample is heterogeneous and the analysis may not accurately reflect a magmatic composition. Tephra sample from Crater Peak vent.

Sample Location:

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

100 km

100 mi

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References Cited

[1] A reconnaissance of the major Holocene tephra deposits in the upper Cook Inlet region, Alaska, 1985

Riehle, J. R., 1985, A reconnaissance of the major Holocene tephra deposits in the upper Cook Inlet region, Alaska: Journal of Volcanology and Geothermal Research, v. 26, n. 1-2, p. 37-74.

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