Tag Archives: Magma

Continental rift exposes mantle melting at work

Changes in the degree of melting of mantle rock explain uplift and subsidence patterns in New Zealand’s Taupo Volcanic Zone. Continue reading

Image | Posted on by | Tagged , , , , | Leave a comment

Finding the magma source for Mount St Helens

Seismic imaging reveals a cold mantle beneath the volcano and suggests that magma migrates from the east. Continue reading

Image | Posted on by | Tagged , , , | Leave a comment

When Continents Collide

A new rheological model characterizes the ways Earth’s crust can slide over and into its mantle. Continue reading

Image | Posted on by | Tagged , , , , | Leave a comment

The Other Gutenberg

Seismologist’s legacy includes discontinuities in Earth’s mantle and beyond. Continue reading

Image | Posted on by | Tagged , , , , | Leave a comment

Discontinuity under the Aloha State

An advanced seismic imaging technique has provided a more detailed picture of mantle structure beneath the Hawaii islands, but it hasn’t resolved how the islands formed. Continue reading

Image | Posted on by | Tagged , , , | Leave a comment