The Active Volcano in Oregon; Davis Lake

Within Oregon is a little known but still active volcano which a mere 5,000 years ago produced a series of 300 foot tall lava flows. These lava flows covered an area of 5.45 square miles adjacent to what is known as Davis Lake. It is due to this lake that the complex in Oregon gets its name, being known as the Davis Lake volcanic field.

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Sources/Citations:
[1] U.S. Geological Survey
[2] MacLeod, N. S., Sherrod, D. R., "Reconnaissance geologic map of the west half of the Crescent 1 degree by 2 degrees Quadrangle, central Oregon", 1992, DOI: 10.3133/i2215, U.S. Geological Survey, USGS Publications Warehouse, https://pubs.usgs.gov/publication/i2215
[3] Source of Volcanic Explosivity Index (VEI) methodology and criteria: Newhall, C. G., and Self, S. (1982), The volcanic explosivity index (VEI) an estimate of explosive magnitude for historical volcanism, J. Geophys. Res., 87(C2), 1231–1238, doi:10.1029/JC087iC02p01231. Accessed / Read by Youtube.com/GeologyHub on Oct 5th, 2022.
[4] J. Ewert, A. Diefenbach, D. Ramsey, "2018 Update to the U.S. Geological Survey National Volcanic
Threat Assessment", U.S. Geological Survey, Accessed October 22, 2022. https://pubs.usgs.gov/sir/2018/5140/sir20185140.pdf

0:00 Unusual Volcanic Vents
0:29 Lava Viscosity
2:11 Lava Flow Features
3:31 Shield Volcanoes
3:56 Hazard Rating

Тэги:

#Volcano #Davis_Lake #Davis_Volcano #Volcanoes #Oregon #Oregon_Volcano #Geology #Andesite #Lava #Eruption

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