Arizona Geophysics 3D -
Geology-Gravity-Depth-Mag Index Map 

Click on the map to bring up the QuickTime VR movie for that square.  In the movie, drag vertically to go from geology to gravity to depth-to-bedrock to magnetics.  Movies on the Colorado Plateau lack the depth-to-bedrock image because there are no deep basins there.

Each movie is 200 to 400 Kb and could take a little time to download on slow internet connections.

Source maps are from Lysonski and others (1980; residual Bouguer gravity), Sauck and Sumner (1970; aeromagnetics), Oppenheimer and Sumner (1980; depth to bedrock), and Richard and others (2000; geology).
 

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Copyright 2002 by Stephen J Reynolds, Josh A Coyan, and Julia K Johnson.  These images can be freely used for educational, noncommercial purposes as long as the source is cited.