1. The Devonian of New York

2. Devonian or Newyorkian? The International Subcommission on Devonian Stratigraphy visits New York State

3. Devonian – the Age of Fish

4. Trouble in Paradise K-bentonites (volcanic ashes) in the Helderberg Group

5. Here we go! No, forget it. Helderberg Group cut by major unconformity Overlain by Oriskany Sandstone –Quartz arenite Oriskany is overlain by Tristates Group –Shale, siltstone, thin volcanic ashes Tristates is succeeded by Onondaga Limestone –Return to Paradise - Reefs

6. Onondaga Limestone – the last of the carbonate seas

7. Devonian Paleogeography

8. Gaspe’ Peninsula, Quebec – Volcanic Ashes

9. Acadia National Park, Maine

10. Hudson Valley, NY - Folding

11. Angular Unconformity – Hudson Valley

12. Taking out the Tilt

13. Folded Taconic Unconformity

14. The Catskill Clastic Wedge The Catskill Front

15. Flysch in the Catskill Wedge

16. Catskill Molasse

19. Channel Sandstones and Floodplain Mudstones/Shales

20. Large Scale Cross Stratification

21. Roots in the Molasse

22. Offshore in the Clastic Wedge: Shale with storm-deposited sand/silt beds

23. Offshore in the Clastic Wedge: Shale (with concretions)

24. Examples of the rich Devonian fauna

25. Geologic Resources from the Catskill Clastic Wedge

26. New York State: Birthplace of the US petroleum industry

27. Natural gas in Western New York

28. A Parade of Evidence Volcanic Ashes Granitic Intrusions Regional Metamorphism – New England FoldingFaulting Catskill Clastic Wedge

29. Acadian Orogeny Collision between Laurentia (North America) and –Avalon = parts of northern Europe and U.K. –Peri-Gondwanan terranes Closure of the northern part of Iapetus