1. Ductile (Plastic) Deformation Folding

2. Stress vs. Strain Rheology Deformation Force

3. Folded Structures 1.Anticlines 2.Synclines 3.Monoclines 4.Basins 5.Domes

4. Anticlines

5. Anticline - oldest rock formation in the middle.

7. Syncline - youngest rock formation in the middle.

8. Syncline in Eastern Tennessee

9. Plunge - the inclination of the fold axis

10. Plunge Measured from a horizontal line.

11. Monocline

12. Peru Monocline – caused by basement-block faulting

13. Fold Geometry

14. SymmetricalAsymmetricalOverturned

15. Anticlines and Synclines

16. Domes Oldest rock in center Basins Youngest rock in center

17. Map view of structures Map Symbols

18. Horizontal Strata

19. Inclined Strata

20. Dome

21. Black Hills Dome

22. Black Hills Geology

23. Basin

24. Plunging Anticlines And Synclines

26. Sheep Mountain Anticline, Wyoming

29. Wisconsin Arch Mich. Basin Cincinnati Arch Nashville Dome Ozark Dome Forest City Basin Kankakee Arch Illinois Basin Mississippi Rvr. Arch