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Flashcards in mining Deck (20)
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1
Q

strip mining

A

used for oil sands and coal located in horizontal layers near the surface

2
Q

open pit mining

A

used for minerals near the surface

3
Q

underground mining

A

used for minerals deep within the earth

4
Q

3 main types of minerals

A
  • industrial
  • metallic
  • fossil fuels
5
Q

give an example of industrial minerals and what theyre used for

A

diamond, potash, gravel / construction

6
Q

give an example of metallic minerals and what theyre used for

A

copper, silver, gold / beauty, strength, manufacturing, construction

7
Q

give an example of fossil fuels and what theyre used for

A

coal, oil / burned to produce energy

8
Q

how much of earth’s energy do fossil fuels provide?

A

66%

9
Q

minerals are only important if _________

A

they have economic value

10
Q

geologist

A

study rock structure and narrow the search for certain minerals

11
Q

prospectors

A

test sites for mineral composition using core samples

12
Q

sedimentary rock

A

rock formed in compressed layers

13
Q

industrial mineral

A

nonmetallic mineral used by industry and manufacturing

14
Q

igneous rock

A

rock created from molten magma

15
Q

metamorphic rock

A

rock changed by heat and pressure

16
Q

metallic mineral

A

a mineral that yields a metal when processed

17
Q

milling

A

the first step in the refining process that separates a mineral from its ore by crushing, separating, filtering and drying raw ore

18
Q

tailings

A

waste minerals which are a toxic mixture of water, rock particles, and chemicals left over from the milling process

19
Q

mineral reserve

A

mineral deposits that are economic to mine

20
Q

mineral

A

a valuable substance taken from rocks by mining