1. Prominent Geological Features of the Lion’s Head Nature Reserve The land tells a few tall tales...

3. Winter is a great time to SEE landforms…why?? Psssst ……. No distractions!!

4. The story begins 500 million years ago when the interior of North America was covered by a shallow tropical sea.

5. 100 million years ago, during Dino time, the sea had evapourated and left the deposits of old shellfish and coral exposed. Since this time erosion from water is the strongest shaping force.

6. What it would look like during an Ice Age… Then 1.6 million years ago the Earth cooled and 2km thick ice sheets covered the Bruce.

7. There were 4 great advances of ice, the last being approx 10 000 years ago. Humans, animals and plant species were able to survive on its periphery.

8. Great Lakes Formation

9. Next Tuesday, look for the following inland features…

10. Potholes – streambed erosion? Other theories?

13. Oriented valleys – mini rock canyons

14. Crevices and caves – created by dissolving action of surface waters

17. Erratics –boulders deposited by glaciers

18. The Original Interesting Paper on Geology The Original Interesting Paper on Geology This paper is the latest theory to support the geological features found on the Peninsula. The next series of slides are pictures that should go in your notes. Name + drawing.

19. Oriented Valley or Rock Channel

20. Potholes

21. Initial development of a soil arch. Development of stress cracks. Sinkhole

22. Cracks and Crevices

23. Erratics

24. Drumlins Top view

25. Drumlins Side and Map view