Geologic history of the Pacific Northwest!
This is the third in a series of 4 videos, each one set up as a virtual field trip through the various rocks and landscapes of the Pacific Northwest- working through its past billion years of geologic history!
Here, we pick up after the accretion of the final terrane- Siletzia. By this point the bulk of the modern landmass of the Pacific Northwest had been assembled, but the geologic processes were still hard at work! Between 50 and around 15 million years ago, extension, formation of the Western Cascades, and giant floods of lava would rule the landscape!
Thanks for watching!
00:00 Intro and quick recap of previous virtual tours
01:00 Stop 1: North Cascades
07:32 Stop 2: Okanogan Highlands
12:14 Stop 3: Oregon Cascades
15:37 Stop 4: Columbia River Basalts
21:05 Recap!
#geology #pacificnorthwest #floodbasalts
Other helpful videos:
Part 1 of this series: https://youtu.be/FhXhzxl9I1g
Part 2 of this series: https://youtu.be/5YmbIrFYwME
Intro to Plate Tectonics: https://youtu.be/N9VoFTRGLuk
Evidence for Plate Motion: https://youtu.be/7DeQ1dw0VBs
The Rock Cycle: https://youtu.be/bcnK4L-Z3V0
Igneous Rocks: https://youtu.be/2gJ2GjR8sGY
Sediments and Sedimentary Rocks: https://youtu.be/su2VNfeCvMY
Metamorphic Rocks: https://youtu.be/QKBD3n2oKlg
Interested in learning more? Check out these books:
"Roadside Geology of Washington": https://mountain-press.com/products/r...
"Roadside Geology of Oregon": https://mountain-press.com/products/r...
"Rocks, Minerals, and Geology of the Pacific Northwest": https://www.workman.com/products/rock...
I originally made these videos for a 100-level "Intro to Pacific Northwest Geology" course I taught mid-Covid pandemic as a series of short virtual field trip assignments. Seemed to work well, why not share? If you have any questions, thoughts, or want more information please comment below or send me a message!