Geologic Time

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Across
  1. 5. Anything that cuts across a rock must be younger than that rock
  2. 6. A piece of rock that is enclosed within another rock
  3. 7. Rocks are originally deposited as flat, horizontal layers
  4. 8. Unconformity – layers are overlain by layers with a different orientation
Down
  1. 1. Magma or molten rock forces its way into and solidifies within pre-existing rocks, forming a body of igneous rock
  2. 2. Sequence of sedimentary rocks (which have not been tilted, folded or otherwise disturbed), the oldest rocks are on the bottom
  3. 3. Unconformity – metamorphic or igneous rocks in contact with sedimentary layers
  4. 4. Layers on either side of the unconformity are parallel