("Lithosphere" refers to Earth's crust and the upper part of the mantle.) When she and her team discovered these signs of deformation, they weren't thinking of a hotspot. But a ...

New research suggests an ancient hotspot helped shape the Great Lakes, challenging traditional formation theories.

There are other potential explanations for the newly mapped blobs. For example, they may be made of crust-like material left over from the mantle's creation 4 billion years ago. Or they may ...

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

A new study from the University of Houston could change the way we understand how lakes were formed.Aibing Li, a UH seismologist and co-author of the ...

This is explained by the 'hotspot' theory. Key fact The 'hotspot' theory is that there are fixed spots in the mantle where magma rises to the surface. As the crust moves over these fixed spots ...