CD/Web Review Questions

Chapter 6, Correlation and Dating of the Rock Record

  1. Which two geologic laws apply to dating of the Precambrian formations in the Grand Canyon? Hint

  2. The Cambrian formations in the Grand Canyon represent which type of environment, transgressive or regressive? Hint

  3. What was the original color of the Grand Canyon Redwall Limestone formation? Hint

  4. The Dinosaur Canyon Sandstone and Springdale Sandstone are part of which Grand Canyon formation? Hint

  5. Most of the rocks exposed at Earth's surface are what type of rock? Hint

  6. During what geologic time period was the Lexington Limestone near Lexington, Kentucky, deposited? Hint

  7. What are two basic concepts underlying the use of fossils to date rock strata? Hint

  8. What is the stratigraphic range of ginkgos? Hint

  9. The use of tree-ring growth for dating is called _________________. Hint

  10. W. D. Conybeare and William Phillips named which geological system? Hint

  11. Name an index fossil of the Ordovician Period. Hint

  12. Name an index fossil of the Triassic Period. Hint

  13. What is the Curie point? Hint

  14. What are the three types of unconformities? Hint

  15. For what two types of materials is radiometric dating most accurate? Hint

  16. Most of the rock in the Grand Canyon is sedimentary rock that can be formed only at the bottom of the ocean or in shallow coastal plains. True or false? Hint

  17. What is the Grand Staircase? Hint

  18. What is the oldest formation exposed in the Zion National Park area? Hint

  19. Which was the primary agent of erosion in Bryce Canyon, water or wind? Hint

  20. What is the half-life of samarium 147? Hint

  21. Samples of Conway Granite collected from Redstone Quarry in the White Mountains of New Hampshire have been radiometrically dated to be how old? Hint

  22. The oldest known fossils are from rocks that were deposited about how long ago? Hint

[TOP]
© 1998-99 W. H. Freeman & Company

Web design:
SUMANAS Multimedia Development Services
Sumanas, Inc.