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USGS Mineral Resources On-line Spatial Data
Interactive maps and downloadable data for regional and global Geology, Geochemistry, Geophysics, and Mineral Resources. --USGS Users may browse by topics such as geologic... -
Geoscience Australia
A division of the Australian Government. This page provides free downloadable geophysical data for Australia. -
Getech Gravity and Magnetic Global Coverage
Getech continues to grow what is already the world's most extensive commercial library of gravity and magnetic data. We have data covering almost every country in the world at a...