Strata Intro Crossword

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Across
  1. 4. an eon ranging from 2.5-541 b.y.a
  2. 6. the current eon
  3. 7. the oldest eon, ranging from 4.6-4 b.y.a
  4. 9. a law. layers lying above another will be considered younger
  5. 10. an eon ranging from 4-2.5 b.y.a
Down
  1. 1. A guy who calculated the age of the Earth based on the Bible's age
  2. 2. word that is part of a law referencing deposition of sediment in a horizontal manner
  3. 3. a branch of geology focusing on the rock layers and relationships within it
  4. 5. a concept created by Charles Lyell, which believes our current formations are what influenced formation in earth's history
  5. 8. word that is part of a law. references how anything cutting through a layer must be younger
  6. 9. the last name of a geologist who created some of the first mapping techniques, combining fossils and rock layers to create a technique called biostratigraphy