1. Joshua Murray ‘18 Advisor: Blair Schoene
Were the Columbia River Basalts Responsible for the Mid-Miocene
Climate Optimum?
Joshua Murray ‘18
Advisor: Blair Schoene

2. 400ppm

3. Mid-Miocene Climate Optimum
Hansen et al. 2013

4. Columbia River Basalt
Brenhin Keller

5. Olivine
Andrew Alden 2009

6. Where now? Finish thin sections Crush rocks that have olivine
Find melt inclusions
Volatile estimates
Assign samples to chemical types with volume estimates
Co-ordinate with U-Pb ages

7. Acknowledgements PEI and the Environmental Scholars Program
Blair Schoene
Jennifer Kasbohm
Brenhin Keller
Sam Bartusek
Steve Reidel & Bart Martin