Geologic History of Earth

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Across
  1. 2. measure the physical properties of an object itself and use these measurements to calculate its age
  2. 3. made up of all the fossils that have been found, along with their relative ages
  3. 6. any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of time
  4. 7. formed from pre-existing rocks or pieces of once-living organisms
  5. 9. horizontal layers of sedimentary rock
  6. 10. the action or process of forcing a body of igneous rock between or through existing formations, without reaching the surface.
Down
  1. 1. a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock
  2. 4. the process of determining if one rock or geologic event is older or younger than another, without knowing their specific ages
  3. 5. A calendar
  4. 8. the analysis of the order and position of layers of archaeological remains.