MINING Flashcards
- abundant deposits
ex: abundant ang specifc mineral (gold) sa Paracale
MINERAL DEPOSITS
- expensive
- more dangerous
- creates a tunnel
- extracting gold, lead, silver
UNDERGROUND MINING
2 TYPES OF MINING
SURFACE MINING & UNDERGROUND MINING
- no metallic substances
NON-METALLIC RESOURCES
- contain one/more metallic elements
METALLIC MINERAL RESOURCES
- minerals/rocks that contain precious metals
- rocks that contains minerals
ex: Ore of Iron > Magnetite & Hematite
ORE
- extracting ore minerals near the surface of the Earth
SURFACE MINING
6 TYPES OF SURFACE MINING
- STRIP MINING
- OPEN PIT MINING
- DREDGING
- PLACER MINING
- QUARRYING
- MOUNTAIN TOP
6 TYPES OF SURFACE MINING
- STRIP MINING
- OPEN PIT MINING
- DREDGING
- PLACER MINING
- QUARRYING
- MOUNTAIN TOP
4 TYPES OF UNDERGROUND MINING
- DRIFT MINING (DERETSO)
- SHAFT MINING/SHAFT SINKING (VERTICAL) [PABABA]
- SLOPE MINING (SLOPE)
- BORE HOLE (USE OF PIPES) [UP]
COMMON MINING PROCESS
- SAMPLING
- COMMUNITION (CRUSHING & GRINDING)
- ANALYSIS (EVAL OF CONTENT)
- CONCENTRATION (SEPARATION)
- DEWATERING (FILTRATION AND SEDIMENTATION)
UNECESSARY ROCKS
OVERBURDEN
- water becomes too acidic
- can undergo restoration
- most common type
- blasting explosives
ex: Bingham Canyon Copper Mine
OPEN PIT MINING
- from the bottom of the body of water
- use of dredging vessel
DREDGING
- removal of a thin strip of overburden
- parallel strip
STRIP MINING
- uses water to separate valuable ore
- Kennedy, mine site, Guinea
PLACER MINING
- mining at the summit
MOUNTAIN TOP
- removing rocks from the ground
(for construction process)
QUARRYING
Chuquicamata mine in Chile
UNDERGROUND MINING
WORLD’S LARGEST OPEN-CUT COPPER MINING
DRIFT MINING
Blaentillery drift mine
SLOPE MINING
Warner Coal Company
SLOPE MINING/SHAFT SINKING
Murray & Roberts Underground Mining