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Introduction to Open Pit Mining

Open pit mining is a surface mining technique used when ore bodies are near surface and cover large areas. When to Use Open Pit - Low strip ratios waste:ore - Near-surface mineralization - Large tonnage deposits - Relatively low grades acceptable The Role of Geology Pit geologists are responsible for: - Grade control - Ore/waste delineation - Geological model updates - Production sampling - Pit wall mapping Mining Cycle 1. Drill and blast 2. Load and haul 3. Crush and process Geology interfaces at every stage to ensure right material goes to right destination.

Verification resources

Cross-check terminology, classification, methods, and safety with these authoritative external resources.

  • Mineral Exploration Best Practice Guidelines — Canadian Institute of Mining, Metallurgy and Petroleum. Professional guidance for geological data, sampling, interpretation, security, and QA/QC.
  • The life cycle of a mineral deposit — U.S. Geological Survey. Scientific context for mineral deposits, extraction, processing, and reclamation.
  • Mining Health and Safety Program — Government of Ontario. Current provincial overview of regulated surface, underground, processing, and mineral-exploration workplaces and the applicable mining-safety framework.

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