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19 True/False questions

  1. epicontinental seaA supercontinent that assembled at the end of the Paleozoic Era.

          

  2. shieldAn older, interior region of a continent.

          

  3. cratonic platformThe most recent of the Precambrian eons.

          

  4. Pleistocene ice ageThe period of time from about 2 Ma to 14,000 years ago, during which the Earth experienced an ice age.

          

  5. Basin and Range ProvinceA broad, Cenozoic continental rift that has affected a portion of the western United States in Nevada, Utah, and Arizona; in this province, tilted fault blocks form ranges, and alluvium-filled valleys are basins.

          

  6. superplumeA huge mantle plume.

          

  7. RodiniaThe most recent of the Precambrian eons.

          

  8. stromatoliteThe most recent of the Precambrian eons.

          

  9. Ancestral RockiesThe late Paleozoic uplifts of the Rocky Mountain region; they eroded away long before the present Rocky Mountains formed.

          

  10. Phanerozoic EonThe most recent of the Precambrian eons.

          

  11. Cambrian explosionThe oldest of the Precambrian eons; the time between Earth's origin and the formation of the first rocks that have been preserved.

          

  12. Proterozoic EonThe most recent eon, an interval of time from 542 Ma to the present.

          

  13. Laramide orogenyThe middle Precambrian Eon.

          

  14. snowball EarthThe middle Precambrian Eon.

          

  15. PangaeaThe most recent of the Precambrian eons.

          

  16. Hadean EonThe oldest of the Precambrian eons; the time between Earth's origin and the formation of the first rocks that have been preserved.

          

  17. stratigraphic sequenceThe most recent of the Precambrian eons.

          

  18. Archean EonThe middle Precambrian Eon.

          

  19. differentiationIn the context of planet formation, the process by which a planet separates into a metallic core and a rocky mantle very early in its history.