Earth's magnetic field and declination, 1590-2010
http://bbs.keyhole.com/ubb/showthreaded.php/Cat/0/Number/1126099/
Google Earth
This data documents a surface phenomenon related to materials within the Earth.
Subject
: Geoscience,
Geology:
Geophysics
Resource Type
:
Audio/Visual:
Images/Illustrations
Theme
:
Teach the Earth:Course Topics:
Geophysics
