In Western Canada, two widespread layers of ash were recently discovered, implying two young large volume explosive eruptions in the recent past. Yet, these ash samples were not a good match for any volcanoes within Canada. So, where did they originate from? This video will discuss this mystery, and mention the volcano most likely responsible for these two young eruptions.

If you would like to support this channel, consider becoming a patron at [ Ссылка ].

Another way to support this channel is to make an order via our gemstone and geology related etsy store at [ Ссылка ].

This video is protected under “fair use”. If you see an image or video which is your own in this video and wish for it to be censored or removed, or believe my discussion of a scientific paper to not fall under this doctrine, contact me by email at tccatron@email.asu.edu and I will make the necessary changes.

Photo credit:
Image of phonolite and basalt at 3m05s: jsjgeology, User: James St. John, Flickr, CC BY 2.0

Google Earth imagery used in this video: ©Google & Data Providers

Source:
[1] Thomas R.LakemanT.R. Lakeman, John J.ClagueJ.J. Clague, BrianMenounosB. Menounos, Gerald D.OsbornG.D. Osborn, Britta J.L.JensenB.J.L. Jensen, and Duane G.FroeseD.G. Froese. Holocene tephras in lake cores from northern British Columbia, Canada. Canadian Journal of Earth Sciences. 45(8): 935-947. [ Ссылка ]

Thumbnail Photo Credit: SEI, Pixabay

CC BY 2.0 license: [ Ссылка ]

свернуть