As Geology - Igneous Rocks

A quick quiz on Igneous rocks in As geology, hope it helps! :)

Read the questions carefully!

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  • Created by: lol
  • Created on: 25-04-11 14:07

1. How do igneous rocks form?

  • Cooling lava from volcanoes
  • None of these
  • Cooling magma on the earth surface
  • Cooling magma on or within the earths surface
  • Cooling magma inside the earth
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2. The difference between lava and magma is:

  • Magma cools quicker than lava
  • They are the same
  • Lava cools quicker than magma
  • Lava is magma on the earths surface
  • Magma is lava on the earths surface

3. Intrusions and Extrusions

  • Both form underwater
  • Form below and above the surface respectively
  • None of these
  • Form in the same places
  • Form above and below the surface respectively

4. The texture of igneous rocks is generally described as:

  • Plutonic
  • Foliated
  • Crystaline
  • Clastic
  • Glassy

5. On a geological map, a horizontal igneous body has what markings to show its dip?

  • Small H
  • Small crosses
  • A different symbol
  • Small dots
  • Is shaded differently
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