Related Links

AMNH Science Bulletins: Earth's Magnetic Shield
 http://sciencebulletins.amnh.org/?sid=a.v.magnetosphere.20060501

 

 AMNH Science Bulletins: The Rise of Oxygen
 http://sciencebulletins.amnh.org/?sid=e.f.rise02.20040301&src=e

 

 Paleomagnetic Research Group, University of Rochester
 http://www.earth.rochester.edu/pmag/