Aniakchak Vent Mountain Lava Flows

Start: 2300 yBP ± 80 Years [1]

Stop: 840 yBP ± 30 Years [1]

Event Type: Effusive

Event Characteristics:

Description: From Bacon and others (2014): "We describe the eruptive history of Vent Mountain beginning with lava flows inferred to be some of the earliest. Thickly tephra-mantled lava that flowed between Bolshoi Dome and Surprise Cone and now fronts onto Surprise Lake apparently came from Vent Mountain, as did lava that flowed between Surprise and Windy Cones. Early lava flows that originated at the west-northwest-east-southeast-trending fissure that cuts the south flank of Vent Mountain and from the summit crater are exposed in the walls of the fissure, as scattered outcrops on the south flank, overlying the east edge of New Cone, and in the walls of the two maar craters. The most far travelled of these flows terminates ~1 km southwest of The Gates (fig. 10A [in original text]).

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/
link to PDFs and tables on USGS website

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.
website with links to PDFs
full-text PDF 24.2 MB
map sheet plate PDF (for viewing) 3.1 MB