Learning Portfolio Analysis and Mining for SCORM Compliant Environment
Mining and the environment
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Transcript of Mining and the environment
![Page 1: Mining and the environment](https://reader033.fdocuments.us/reader033/viewer/2022051612/54bb9c984a7959336b8b468b/html5/thumbnails/1.jpg)
Mining and the Mining and the EnvironmentEnvironment
Depending on the location, different Depending on the location, different methods are used to extract minerals.methods are used to extract minerals.
• Surface miningSurface mining
• Subsurface mining Subsurface mining
• DredgingDredging
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Iron OreIron Ore
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Open-pit minesOpen-pit mines dug to extract mineral ores that dug to extract mineral ores that can form deep depressions where hills once can form deep depressions where hills once stood.stood.
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Subsurface miningSubsurface mining requires a requires a complex network of tunnels and complex network of tunnels and shafts to remove minerals from shafts to remove minerals from deep deposits.deep deposits.
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DredgingDredging = scrape sediments and minerals from = scrape sediments and minerals from stream beads and ocean floors. This may stream beads and ocean floors. This may removing nutrients and disturb food chainsremoving nutrients and disturb food chains
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Mine ReclamationMine Reclamation
• The process of creating useful landscapes that meet a variety of goals, typically creating productive ecosystems (or sometimes industrial or municipal land) from mined land.
• Includes material placement, stabilizing, capping, regrading, placing cover soils, revegetation, and maintenance.