Geologic Time

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Across
  1. 2. Scientific principle that states that newer rocks are found on the surface.
  2. 3. Type of rock the law of superposition does not generally apply to due to it forming underground due to head and pressure.
  3. 7. Age of rock located at the bottom
  4. 8. Igneous rock that was formed by magma spewing through one or more layers before cooling.
  5. 9. Type of rock the law of superposition works on.
  6. 11. Process in which one unstable substance changes/breaks down into to another substance.
  7. 12. Caused by an earthquake that shifts the layers of rock.
Down
  1. 1. Remains of deceased organisms
  2. 4. precisely identifies the age of the rock.
  3. 5. Deviation in the typical structure of layered sedimentary rock.
  4. 6. estimation on the age of rock through visual cues.
  5. 10. Type of rock the law of superposition does not generally apply to because it forms by cooled magma.