The Ancient Island That Transformed Washington: A SciShow Field Trip #2
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Even though there are no volcanoes on the Olympic Peninsula, you can find lots of volcanic rocks on the beaches. This bizarre circumstance might have to do with how the ancient island transformed Washington state.
Series episode 1: https://youtu.be/nRDrqAWXiG0
Episode 3: https://youtu.be/r85dJ3RVCPI
Hosted by: Stefan Chin, Alexis Dahl
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Sources:
Correspondence with Dr. Ray Wells
Click to access Cascadia2012_Wells.pdf
https://pnsn.org/outreach/about-earthquakes/plate-tectonics
https://phys.org/news/2017-10-siletzia-oceanic-center-bremerton.html
https://pubs.geoscienceworld.org/gsa/geosphere/article/10/4/692/132166/Geologic-history-of-Siletzia-a-large-igneous
https://pubs.geoscienceworld.org/gsa/gsabulletin/article-abstract/86/3/421/201836/New-Analyses-of-Eocene-Basalt-from-the-Olympic?redirectedFrom=PDF
Click to access ger_gm50_geol_map_nw_wa_250k.pdf
https://ngmdb.usgs.gov/Geolex/UnitRefs/CrescentRefs_5110.html
https://pnsn.org/blog/2016/08/15/why-aren-t-there-any-volcanoes-in-the-olympic-mountains
https://pnsn.org/outreach/about-earthquakes/plate-tectonics
Image Sources:
https://www.istockphoto.com/photo/mount-olympus-and-the-rugged-olympic-mountains-gm503245592-82422003
https://www.istockphoto.com/photo/rialto-beach-sunset-gm489630466-74756835
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