Mining
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17 Terms
Mineral
A naturally occurring substance with a specific chemical composition.
Ore
A rock containing valuable metals or minerals.
Strip Mining
Removing surface layers of soil to access minerals beneath.
Subsurface Mining
Mining done underground to reach deep minerals.
Acid Mine Drainage
Pollution from acidic water after mining.
Bauxite
The main ore of aluminum.
Overburden
Layers of rock and soil above a mineral deposit.
Quarries
Open pits for extracting rocks like stone or gravel.
Reclamation
Restoring land after mining or damage.
Open Pit Mining
Large, surface mining method with a deep, wide pit.
Estimated Reserve
Estimated amount of a mineral, based on surveys.
Proven Reserve
Confirmed amount of a mineral, ready for extraction.
Smelting
Heating ores to extract metals.
Tailings/Tailings Pond
Waste materials left after mining, stored in ponds.
Slag
Waste byproduct from metal smelting.
1977 Surface Mining Control and Reclamation Act
U.S. law regulating mining and land restoration.
Spoils/Spoil Bank
Waste material removed during mining.
Flashcards (63)