Mine Waste Geochemistry Assessment, Corani Project, Puno, Peru

The Corani project is located in southeastern Peru at elevations ranging from 4800 m to 5200 m. The open pit mining will produce approximately 256 Mt of waste rock, a significant portion of which will contain sulfide mineralization. A geochemical test program was performed on the waste rock to be mined. Static testing of waste rock showed neutralizing potential at essentially zero. Acid-Base-Accounting (ABA) testing was augmented using a LECO furnace. Kinetic testing using a barrel test method was performed. The results of the testing programs were used to prescribe mine waste management methods for the project.