Geology AS OCR Sediment transport and erosion

Geology AS OCR Sediments and sedimentary environments - unit 2.3 sections 1 and 2 of OCR text book.

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1. What is carbonation?

  • A process caused by the expansion of freezing water in fractures which forces the rock apart.
  • The reaction between silicate minerals (e.g. Feldspar) and water, causing the minerals to decompose.
  • The reaction between carbonic acid and minerals.
  • A process that occurs when sheets of rocks split off due to differential expansion/mineral contraction during heating.
  • The expansion and fracturing of a rock due to the removal of overlying rocks.
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Other questions in this quiz

2. Carbonation and hydrolysis are both examples of...

  • Biological weathering
  • Chemical weathering
  • Mechanical weathering

3. Hydrolysis is...

  • A process that occurs when sheets of rocks split off due to differential expansion/mineral contraction during heating.
  • A process caused by the expansion of freezing water in fractures which forces the rock apart.
  • The reaction between silicate minerals (e.g. Feldspar) and water, causing the minerals to decompose.
  • The reaction between carbonic acid and minerals.
  • The expansion and fracturing of a rock due to the removal of overlying rocks.

4. Exfoliation, frost shattering and pressure release are all examples of...

  • Biological weathering
  • Mechanical weathering
  • Chemical weathering

5. What is exfoliation?

  • A process that occurs when sheets of rocks split off due to differential expansion/mineral contraction during heating.
  • The expansion and fracturing of a rock due to the removal of overlying rocks.
  • A process that occurs when sheets of rocks split off due to differential expansion and contraction of minerals during heating.
  • The reaction between silicate minerals (e.g. Feldspar) and water, causing the minerals to decompose.
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