https://www.usgs.gov/publications/permissive-tracts-iron-oxide-copper-gold-deposits-mauritania-phase-v-deliverable-78
Permissive tracts for iron oxide copper-gold deposits in Mauritania (phase V, deliverable 78 ):...
In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan...
iron oxide copper gold