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6 Written questions

6 Multiple choice questions

  1. the decayed remains of once-living creatures
  2. intrusions that run in the same direction as the strata
  3. "veins" of igneous rock that shoot right through several layers of sedimentary rock
  4. rock formed from sediments (sand, silt, and other components of soil) and laid down by water or some other agent.
  5. unidentifiable unconformities
  6. when a single layer of rock is less than 1 centimeter

5 True/False questions

  1. disconformitieswhen there are parallel, stratified rock layers above and below the unconformity, but there is a clear surface of erosion between them

          

  2. dikesintrusions that run in the same direction as the strata

          

  3. igneous rockrock formed from molten rock, which is usually called magna.

          

  4. nonconformitywhen stratified layers rest on top of unstratified layers

          

  5. catastrophismthe process by which sediments and rock fragments are carried away by wind or rain