The only explanation then is that the ancient minerals originated at the source of volcanism, in the Earth's mantle beneath the plate, long before the formation of today's volcanoes. But that ...

In the middle of the Pacific Ocean, thousands of miles from any continent, Easter Island rises out of the sea. Its surface ...

This is a 3D view of the top 1,000 kilometers of the earth's mantle beneath the central Pacific ... floor mark islands associated with "hotspot" volcanoes, such as Hawaii.

The 3-D illustration shows the so-called mantle plume feeding the super volcano which forced the plates apart. The arrows indicate the different movements. Disclaimer: AAAS and EurekAlert!

A magma hotspot is a localized area in Earth's mantle where unusually hot rock rises toward the surface, causing volcanic activity. Unlike volcanoes at tectonic plate boundaries, hotspots occur in ...

An curved arrow pointing right. A volcano erupted in Iceland's most densely populated area on December 18. It is the largest eruption on the Reykjanes Peninsula since 2021. More from News A ...

On Earth, convection deep in the mantle provides the energy that drives ... Surface temperatures reach 870°F, and its volcanoes and other surface features show clear signs of melting.

Three decades ago a scientist at the University of Colorado Denver suggested that heat from a “mantle plume” under Marie Byrd Land in western Antarctica might explain regional volcanic ...

To answer that, you have to look deep under Earth’s surface—into the mantle, a thick layer of hot rock between the crust and the core. Some volcanoes, like those on Easter Island and Hawai’i ...