A new geological study proposes that Yellowstone's volcanic activity is driven by tectonic stresses from the subducted Farallon plate rather than a traditional mantle plume. This challenges the long-standing plume theory and suggests plate dynamics create pathways for magma to reach the surface. The research reinterprets Yellowstone's formation mechanism and could influence understanding of continental hotspots.
Background
Yellowstone's hotspot has traditionally been explained by a mantle plume rising from deep within Earth, similar to oceanic hotspots like Hawaii. The Farallon plate was an ancient tectonic plate that subducted under North America, shaping the continent's western geology.
- Source
- Ars Technica
- Published
- Apr 11, 2026 at 04:06 AM
- Score
- 6.0 / 10