Information on carbonatite deposits containing niobium and rare earth elements from around the world with grade and tonnage models, geologic setting, mineralogy, with data allowing locations of these deposits to be plotted using GIS.
Show in a web browser window:
Show in Google Earth or other KML viewer:
carbonatite.kml (uncompressed 94k bytes)
carbonatite.kmz (compressed 5k bytes)
Show in your GIS using OGC web services:
https://mrdata.usgs.gov/services/carbonatite (WMS, version 1.3.0)
https://mrdata.usgs.gov/services/wfs/carbonatite (WFS, version 1.1.0)