Define Measured, Indicated, and Inferred resources and explain how confidence affects mine planning.

Define Measured, Indicated, and Inferred resources and explain how confidence affects mine planning.

• A. Inferred resources have the highest confidence; Measured the lowest; planning is unaffected by confidence.
• B. Measured resources have moderate confidence; Indicated high; Inferred low.
• C. Measured resources have high confidence with dense data; Indicated moderate; Inferred low; higher confidence informs feasibility and mine design choices.
• D. All resource classifications have the same level of confidence.

Answer: (C)