Paleomagnetism, Sea Floor Spreading Video

Sean

From:	Sean
Subject:	Paleomagnetism, Sea Floor Spreading Video
Date:	20 Nov 2004 10:05:36 -0800

Can anyone suggest a good video for high school students that shows
how the record of the reversals of earth's magnetic field have been
preserved on the mid-atlantic ridge as the lava solidified, and how
this is used as evidence for plate tectonics?

Thanks in advance,
S.Lee