See also the appropriate section of the applied geophysics links list . There are several examples of results over recent volcanic deposites in western Canada. Both ground and airborne GPR have been used by the glaciology group at UBC . Examples of both are provided at their web site. These are presented on the web site of GSSI Inc., one of the first manufacturers of GPR equipment.
Most examples are single figures but papers are obtainable from the company.
There is one abstract entilted GPR Used to Locate Hazards in Mining. There is a brief mention of the use of GPR at an archeological dig at the web site of Radar Solutions International . A more complete archelogical discussion also illustrates a magnetics map of the site. There are 10 short examples at this Russian commercial web-site. This group has been doing various types of GPR for over a decade.