Geographic Region - The individual papers have each been grouped into one or more of 6 Geographic Regions, namely Australasia and Oceania, South-east Asian Archipelago (which overlaps with Australasia), Eurasia, Africa, South America and North America. You may click or touch one Geographic Region button to list papers relevant to that region. The listing for each Region will be subdivided by Commodity Group. When you have finished with one collection you can return via the New Search tab to the Listing Options page to select more.
Commodity Group - The individual papers have each been grouped into one or more of 7 Commodity Groups, namely Gold and/or Silver, Copper and/or Molybdenum (with or without accompanying Au, Co or U), Nickel and/or PGE and/or Chromite and/or Vanadium (with or without accompanying Cu), Lead and/or Zinc (with or without accompanying Cu, Ag or Au), Iron or Manganese, Diamonds or Gems, and Other Minerals (which includes Uranium, Tin, Tungsten, Heavy Minerals, Industrial Minerals, Bauxite, Borax, etc.), You may click or touch one Commodity Group button to list papers relevant commodity, as in the previous point. The listing for each Commodity Group will be subdivided by Region.