GEOS 100 Final Presentation Columbia River Basalts : GEOS 100 Final Presentation Columbia River Basalts Olivia Tocher MJ Faris Jaelyn Aquino 1
Rock Types: Rock Types Igneous Rock - Lava Flows Basalt River Sediments More than 300 Lava Flows!!! 2
Slide3: 3
Major Structural Features: Major Structural Features 4
Slide5: 5
Slide6: 6
A Rich (And Volcanic!) Geologic History: A Rich (And Volcanic!) Geologic History 17.4 - 17 Ma Picture Gorge Basalt (Not much left over today, no handy image) 16.5 - 15.6 Ma Imnaha Basalt Grande Ronde Basalt 16 - 15 Ma Wanapum Basalt 15.6 - 14.5 Ma Saddle Mountains Basalt Approx. 10 Ma 7
Slide8: 8
The Dangers of Building a City on a Landslide Deposit: The Dangers of Building a City on a Landslide Deposit Lewiston, ID 9 ?
Basalt flows + deposited sediment =: Basalt flows + deposited sediment = Lewiston, ID May 1998 10
Thank you for watching!: Thank you for watching! 11
Works Cited: Works Cited Digital Geology of Idaho http://geology.isu.edu/Digital_Geology_Idaho/Module10/mod10.htm Columbia River Flood Basalts http://volcano.oregonstate.edu/book/export/html/486 Idaho Geological Survey http://www.idahogeology.org/DrawOnePage.asp?PageID=83 https://www.researchgate.net/publication/280296629_An_introduction_to_the_stratigraphy_structural_geology_and_hydrogeology_of_the_Columbia_River_Flood-Basalt_Province_A_primer_for_the_GSA_Columbia_River_Basalt_Group_field_trips 12