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Geology 211 - Class Final > Fossil Fuels > Flashcards

Fossil Fuels Flashcards

1
Q

3 grades of coal

A

1) Lignite
2) bituminous
3) Anthracite

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2
Q

3 major coal forming periods

A

Carboniferous (345-280Ma)
Permian (280-250Ma)
Cretaceous (140-65Ma)

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3
Q

Peat (5)

A

NOT coal

  • deposited in a swamp
  • limited oxygen supply
  • limited inorganic input
  • predominately moisture
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4
Q

How is Peat transformed into coal?

A

by continued burial through gradual rise in temperature over long periods of time

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5
Q

What is coal comprised of? (5)

A
  • macerals
  • minerals
  • trace elements
  • water
  • hydrocarbons
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6
Q

What are the conditions necessary for the creation of economic accumulations of oil and gas? (3)

A
  • source rock that can generate hydrocarbons
  • a porous reservoir rock (Limestones, Zircons, and sandstones are good reservoirs)
  • an impervious cap rock for confinement (trap)
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Geology 211 - Class Final (12 decks)

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