Other
University of Texas Arlington: Isostasy, Gravity, Magnetism, and Internal Heat
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...
Incorporated Research Institutions for Seismology
Iris: Gps Measuring Plate Motion [Pdf]
This resource looks at how geologists are able to measure the movement of tectonic plates using satellite-based data and how they were able to surmise in the past that the plates were moving. It also discusses how to read GPS time-series...
Michigan Technological University
Michigan Technological University: Keweenaw Geoheritage: Paleomagnetism
This website grew out of a field trip to Isle Royale, an island in Lake Superior, to study its geology. This page explains the concept of paleomagnetism, evidence that can be found around Lake Superior, and some magnetic anomalies that...
NASA
Nasa: Magnetic Reversals and Moving Continents
This site gives a good overview of magnetic reversals. Discusses continental drift, ocean floor magnetism, and sea-floor spreading.
PBS
Nova: Magnetic Storms: When Compasses Pointed South
Earth's magnetic poles have reversed themselves throughout its long history. Find out what scientists know about these reversals. A geologic time line shows when the reversals occurred.
PBS
Pbs: Scientific American Frontiers: Earth on the Move
The interactive resource examines the plate tectonics, magnetic reversals, and continental drift of the Earth. An animation of the Earth's continental drift over the last 750 million years is included.
CK-12 Foundation
Ck 12: Earth Science: Magnetic Evidence for Seafloor Spreading
How magnetic reversals on the seafloor provide evidence for seafloor spreading. [Free Registration/Login may be required to access all resource tools.]
Woods Hole Oceanographic Institution
Woods Hole Oceanography Institute: Hot Topics: Seafloor Magnetics
The earth's magnetic poles have reversed themselves throughout the earth's history. Find out how scientists know that this happened.
Smithsonian Institution
Smithsonian: This Magnetic Map Shows Earth as You've Never Seen It Before
This article discusses a map generated by the European Space Agency's Swarm mission that depicts Earth's magnetic field using satellites to measure magnetism. The map reveals magnetic stripes and magnetic anomalies. The article includes...
Other
This Old Earth: Geology Online: Paleomagnetism and Continental Drift
Discusses discoveries that laid the foundation for scientists' understanding of paleomagnetism, continental drift, and magnetic reversals.
PBS
Nova: See a Reversal
The earth's magnetic field is due for a reversal. Find out what causes the magnetic field and view an animated model that shows it reversing.
Other
Apex Magnets: What Is Paleomagnetism?
A brief description of paleomagnetism and the importance it holds for geoscientists.