Explore the causes of continental intraplate volcanism in this 42-minute AGU Fall Meeting 2008 Bowen Lecture, focusing on the High Lava Plains of Eastern Oregon. Presented by Richard W. Carlson from the Carnegie Institution of Washington's Department of Terrestrial Magnetism, the lecture covers a comprehensive range of topics including the volcanic record, convergent margins, the Yellowstone plume, time-progressive volcanism, and various types of volcanic rocks. Delve into the intricacies of subduction, tomographic results, low velocity models, and shearwave splitting. Gain insights into the complex geological processes shaping the High Lava Plains region through this in-depth examination of volcanic activity and its underlying causes.