Information on porphyry copper deposits from around the world with grade and tonnage models, a general classification based on geologic setting, mineralogy, with data allowing locations of these deposits to be plotted using GIS.
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Show in Google Earth or other KML viewer:
porcu.kml (uncompressed 1.2M bytes)
porcu.kmz (compressed 36k bytes)
Show in your GIS using OGC web services:
https://mrdata.usgs.gov/services/porcu (WMS, version 1.3.0)
https://mrdata.usgs.gov/services/wfs/porcu (WFS, version 1.1.0)