Kincaid, ChristopherDruken, K AGriffiths, RossStegman, D R2015-12-131752-0894http://hdl.handle.net/1885/74411The causes of volcanism in the northwestern United States over the past 20 million years are strongly contested. Three drivers have been proposed: melting associated with plate subduction; tectonic extension and magmatism resulting from rollback of a subdKeywords: magmatism; mantle plume; plate boundary; plate convergence; subduction; tectonic wedge; volcanism; Idaho; Snake River Plain; United States; Yellowstone Volcanic Plateau201310.1038/ngeo17742016-02-24