Across
- 2. group of fossils occur in a definite and determinable order
- 7. unconformity where part of the sequence of parallel rock layer is missing
- 8. unconformity where layers lie on top of eroded surface of nonlayered igneous or metamorphic rocks
- 9. sedimentary layers are horizontal when originally deposited
- 11. theory opposite of uniformitarianism
- 12. geologic features are younger than the rocs they cut
- 13. putting events into chronological order
Down
- 1. horizontal layers on top of tilted layers
- 3. reintroduced uniformitarianism
- 4. I wrote the Theory of the Earth
- 5. study of the past
- 6. 'the present is the key to the past'
- 10. youngest layers on top