Spurr 5200 yBP
Start: 5200 yBP [1]
Event Type: Explosive
- Tephrafall [1]
Description: From Riehle (1985): "Spurr tephra deposits are mainly dark scoriae of basaltic andesite composition which are predominant only within 100 km of the cone and which are assigned to the Crater Peak vent...One group consists of 3, provisionally correlated samples which define a marker horizon about 5200 yr old in the region northeast of Spurr. The 3 samples have nearly equal proportions of clinopyroxene, orthopyrocene, and amphibole and have trace amounts of biotite."
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.Complete Eruption References
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.
