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1. Earth Science Geologic Time Chapter 11

5. Superposition is well illustrated in the Grand Canyon Figure 11.3

6. Cross-cutting relationships Figure 11.5

8. Figure 11.8 Formation of an angular unconformity

9. Several unconformities are present in the Grand Canyon Figure 11.7

13. Cast and mold of a trilobite Figure 11.13 B

16. Determining the ages of rocks using fossils Figure 11.14

23. The radioactive decay curve Figure 11.17

24. Dating sedimentary strata using radiometric dating Figure 11.21

29. Figure 11.19 The Geologic Time Scale

31. End of Chapter 11