Grand-scale Volcanism Past, Present, and Future in Yellowstone

Abstract

Yellowstone National Park lies at the focus of one of Earth's largest volcanic fields. ( past 2 million years or so, about 6,000 cubic kilometers of magma have erupted f region, covering large areas with lava and flows of hot volcanic ash that welded into rocks. Each of the three greatest of these eruptions emptied so much from large mac ...............filled subsurface chambers Earth's crust collapsed in .......................................................mous crater-like calderas. Airborne ash carri Yellowstone was depositE more than two-thirds of the