Petrology: Classification of Rocks
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Questions and Answers

Which type of rock is formed through the cooling and solidification of lava or magma?

  • Igneous rock (correct)
  • Metamorphic rock
  • Conglomerate rock
  • Sedimentary rock

From which type of sediments are sedimentary rocks formed?

  • Volcanic ash
  • Intensely heated rocks
  • Mineral particles and binding matrix (correct)
  • Magma

What type of rock is formed from other rocks that are changed by intense heat and pressure underground?

  • Igneous rock
  • Sedimentary rock
  • Sandstone
  • Metamorphic rock (correct)

What is the main source of the material lime?

<p>Limestone (B)</p> Signup and view all the answers

Where is sandstone found?

<p>In river and stream beds (B)</p> Signup and view all the answers

What occurs when deeply buried sand is exposed to pressure and slightly higher temperatures?

<p>Formation of conglomerate (D)</p> Signup and view all the answers

What type of rock is formed from the accumulation of calcareous shell remains?

<p>Chalk (B)</p> Signup and view all the answers

Which type of limestone is poorly cemented?

<p>Coquina (D)</p> Signup and view all the answers

What process forms tufa?

<p>Precipitation of calcium carbonate (D)</p> Signup and view all the answers

Which sedimentary rock is distinguished by being fissile and laminated?

<p>Shale (A)</p> Signup and view all the answers

Where is conglomerate most likely to form?

<p>Near fault lines and tectonic activity (C)</p> Signup and view all the answers

What type of rock is formed when other rock is subjected to weathering?

<p>Breccia (D)</p> Signup and view all the answers

Which one of the following is a nonfoliated metamorphic rock?

<p>Quartzite (D)</p> Signup and view all the answers

"Riprap" is a common use for which type of rock?

<p>Quartzite (B)</p> Signup and view all the answers

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