Stepovak Bay 1, 1400000 yBP
Start: 400000 yBP [1]
Event Type: Effusive
- Lava flow [1]
Description: From Wilson (1989): "Age determinations were attempted on three young andesite flows from volcano 1...A second sample has yielded a preliminary age of 0.4 Ma (Nora Shew and F.H. Wilson, unpub. data, 1988)."
References Cited
[1] Geologic setting, petrology, and age of Pliocene to Holocene volcanoes of the Stepovak Bay area, western Alaska Peninsula, 1989
Wilson, F. H., 1989, Geologic setting, petrology, and age of Pliocene to Holocene volcanoes of the Stepovak Bay area, western Alaska Peninsula: in Dover, J. H. and Galloway, J. P., (eds.), Geological studies in Alaska by the U.S. Geological Survey, 1988, U.S. Geological Survey Bulletin 1903, p. 84-95.
full-text PDF 403 KB Complete Eruption References
Geologic setting, petrology, and age of Pliocene to Holocene volcanoes of the Stepovak Bay area, western Alaska Peninsula, 1989
Wilson, F. H., 1989, Geologic setting, petrology, and age of Pliocene to Holocene volcanoes of the Stepovak Bay area, western Alaska Peninsula: in Dover, J. H. and Galloway, J. P., (eds.), Geological studies in Alaska by the U.S. Geological Survey, 1988, U.S. Geological Survey Bulletin 1903, p. 84-95.
full-text PDF 403 KB 