Aniakchak New Cone Tephra
Start: 400 yBP ± 30 Years [1]
Event Type: Explosive
Description: From Bacon and others (2014): "On the east-southeast flank of Vent Mountain, New Cone was the source of lava that preceded much of that from Vent Mountain itself. Three radiocarbon dates on material associated with tephra thought to have a New Cone source (table 2 [in original text]) have a weighted mean age of 400+/-30 yr B.P. (table 1 [in original text]), though only the 390+/-60 yr B.P. date is from within the caldera. Tephra considered to predate New Cone is as young as Half Cone upper light pumice."
References Cited
[1] Postglacial eruptive history, geochemistry, and recent seismicity of Aniakchak Volcano, Alaska, 2014
Bacon, C.R., Neal, C.A., Miller, T.P., McGimsey, R.G., and Nye, C.J., 2014, Postglacial eruptive history, geochemistry, and recent seismicity of Aniakchak Volcano, Alaska: U.S. Geological Survey Professional Paper 1810, 74 p., http://dx.doi.org/10.3133/pp1810, available online at http://pubs.usgs.gov/pp/1810/
[2] Preliminary volcano-hazard assessment for Aniakchak Volcano, Alaska, 2001
Neal, Christina, McGimsey, R. G., Miller, T. P., Riehle, J. R., and Waythomas, C. F., 2001, Preliminary volcano-hazard assessment for Aniakchak Volcano, Alaska: U.S. Geological Survey Open-File Report 00-0519, 35 p.
full-text PDF 24.2 MB Complete Eruption References
Postglacial eruptive history, geochemistry, and recent seismicity of Aniakchak Volcano, Alaska, 2014
Bacon, C.R., Neal, C.A., Miller, T.P., McGimsey, R.G., and Nye, C.J., 2014, Postglacial eruptive history, geochemistry, and recent seismicity of Aniakchak Volcano, Alaska: U.S. Geological Survey Professional Paper 1810, 74 p., http://dx.doi.org/10.3133/pp1810, available online at http://pubs.usgs.gov/pp/1810/
Preliminary volcano-hazard assessment for Aniakchak Volcano, Alaska, 2001
Neal, Christina, McGimsey, R. G., Miller, T. P., Riehle, J. R., and Waythomas, C. F., 2001, Preliminary volcano-hazard assessment for Aniakchak Volcano, Alaska: U.S. Geological Survey Open-File Report 00-0519, 35 p.
full-text PDF 24.2 MB 