Synopsis
ACCOUNT OF AN OPEN-PIT COPPER MINE IN OPERATION. ILLUSTRATES THE MAIN STEPS IN EXTRACTING PURE COPPER FROM ORE. PICTURES THE PROCESSES OF BLASTING, LOADING and DISPOSING OF WASTE ROCK, LOADING ORE IN RAILROAD CARS, CRUSHING and WASHING.
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Details
- Running time
- 10 minutes
- Collection
- Prelinger Archives