Block caving is a form of mining that is generally categorized as which type?

Block caving is a form of mining that is generally categorized as which type?

• A. Surface mining
• B. Open-pit mining
• C. Underground mining
• D. Placer mining

Answer: (C)

Block caving is a form of underground mining, where the ore body is undercut so the rock above becomes unstable and gradually caves under gravity, with the broken ore collected through underground draw points. This method operates below the surface, using tunnels and access points to extract ore, rather than exposing the rock on the surface. Surface mining involves removing overburden to reach near-surface deposits, open-pit mining is a large surface excavation, and placer mining targets loose alluvial deposits like those in riverbeds. Because block caving relies on underground undercutting and gravity-fed ore flow rather than surface excavation, it is categorized as underground mining.

Block caving is a form of underground mining, where the ore body is undercut so the rock above becomes unstable and gradually caves under gravity, with the broken ore collected through underground draw points. This method operates below the surface, using tunnels and access points to extract ore, rather than exposing the rock on the surface. Surface mining involves removing overburden to reach near-surface deposits, open-pit mining is a large surface excavation, and placer mining targets loose alluvial deposits like those in riverbeds. Because block caving relies on underground undercutting and gravity-fed ore flow rather than surface excavation, it is categorized as underground mining.