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MINING - Coggle Diagram
MINING
Factors affecting extraction
Costs of exploration and extraction
Geology
Climate
Accesibility
Environmental impact
Supply and demand
Quality of the mineral deposit
Planned rate of extraction
Types of extraction
Sub-surface mining
Deep
Shaft mining
Needed supply of water
Danger of collapsing tunnels
Too deep to remove by surface mining
More expensive and technically challenging
Surface mining
Open-pit/ open-cut/ open-cast
Valuable deposit located near the surface
Reasons why they are stop being worked
As much valuable deposit as possible has been remove
The amount of overburden that needs to be remove has increased to an extent that the mine is no longer profitable
Strip mining
Used to mine a seam of mineral
Use to mine coal near the surface
Minerals
Convert in materials we use everyday
Searching for
Prospecting (Look in the surface of rocks)
Remote Sensing (get info about the surface ej: satelites)
Field surveys ground --> sampels --> geochemical analyisis
Geiphysics (Vibrations)