I think your after info on greenstone belts. Some info here:
"exposed packages of ancient volcanic and sedimentary rocks that have been metamorphosed over millions of years"
"greenstone-hosted gold deposits. The most widely accepted term is Archean orogenic gold deposits."
"Archean orogenic gold deposits are found in a variety of rock types" http://www.geologyforinvestors.com/gold-archean-greenstone-belts/