Overburden Waste Rock At Iron Ore Mining
How are they acquired Mining • Mining – Surface or underground operations with associated surface tailings, impoundments, and processing facilities, etc. • Resource extraction and processing (hard rock example) – Mining = Overburden, Waste Rock, Sub Ore, and Ore • Ore.The primary and most prevalent waste generated by many mining operations is waste rock, or overburden. Waste rock, which consists of rock and target minerals in concentrations too low for economic recovery, is removed along with the ore. Waste rock includes granular, broken rock that ranges from fine sand to large boulders, depending on the.