mining - apes

Strip mining

Removal of resources and strips from the surface down

Why strip mining?

When minerals are close to the surface

Effect of strip mining

Terrorist landscape and exposes potentially harmful minerals

Open pit mining

Build like a pit or cone

Why pit mining?

Mineral is close to the surface, but it extends horizontally and vertically from the surface

Effect of pit mining

Soil left exposed

Mountain top removal

Remove the entire top of the mountain

Effect of mountain top removal

Erosion and runoff

placer mining

Looking for minerals in the sediments of rivers and streams

Effect of placer mining

Water quality and turbidity

Sub surface mining

Horizontal tunnels dug with vertical shafts

Why sub surface mining?

Resources is more than 100 m deep

Effect of surface mining

Less erosion less environmental concern, but more human endangerment