Labeled diagram of a section of the Earth's crust.

Topics covered in this slideshow include the Earth's interior, seismic S- and P-waves, the crust and mantle, phase boundaries encountered by seismic waves, the Earth's internal heat, gravity and density, gravitational anomalies, the...

An in-depth look at how isostasy works and the processes taking place during glaciation and the melting of glaciers. Looks at gravity and the effects of density differences within the crust and mantle, and at Earth's magnetic field and...

Learn how seismic tomography imaging helps scientists understand the formation of the Earth's interior.

Get an overview of all the tectonic plates that make up the earth's crust. The colorful contrasting and labeled plate boundaries make this an excellent resource.

Situated on the west coast of the island of Newfoundland, the park provides a rare example of the process of continental drift, where deep ocean crust and the rocks of the earth's mantle lie exposed. More recent glacial action has...