Yellowstone's Magma Mystery Solved

Science News Today | 2 Min News | The Daily News Now! · Jun 28, 2026 · 1m

Scientists have cracked the mystery behind Yellowstone’s supervolcano: it’s not fueled by a giant magma chamber, but by a vast, spread-out “magma mush” fed by a mysterious eastward mantle wind. This new 3D model reveals that ancient tectonic activity, specifically the subduction of the Farallon Plate, drives a horizontal flow of hot mantle material that melts rock as it stretches under the continent. The resulting magma is funneled through a natural channel created by opposing tectonic forces, reshaping our understanding of how supervolcanoes form and sustain themselves over millennia…