Geological Cycle Flashcards

1
Q

What is sedimentation?

A

layers building up and compacting to form sediment

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2
Q

What is fossilisation?

A

animals decomposing and forming sediments under high pressure and temperatures

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3
Q

How are the himalayas involved in the carbon cycle?

A
  • formed millions of years ago by processes such as sedimentation
  • long term carbon store
  • plates converge due to tectonic processes
  • uplift exposes mountains and makes them vulnerable to chemical weathering
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4
Q

Describe the process of the geological cycle

A

transportation -> deposition -> subduction -> rising back up -> chemical weathering

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5
Q

What type of lava releases the most gas?

A

andesitic

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6
Q

What is subduction?

A

a denser, heavier plate sinking below a less dense plate and being forced into the mantle/asthenosphere

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7
Q

What is weathering?

A

the slow process that breaks down rocks, releasing carbon over long periods of time

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8
Q

What is diagenesis?

A

physical and chemical changes in rocks, which ultimately leads to sediments forming under high temperatures and pressures

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9
Q

What does precipitate means?

A

mineral forms by crystallisation from a solution

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10
Q

What is tectonic uplift?

A

the geologic uplift of Earth’s surface that is attributed to plate tectonics.

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