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The Arctic Alaska-Canada Connection Revisited Jaime Toro, West Virginia University Frances Toro, DOE NETL Ken Bird, USGS Chris Harrison, GSC.

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Presentation on theme: "The Arctic Alaska-Canada Connection Revisited Jaime Toro, West Virginia University Frances Toro, DOE NETL Ken Bird, USGS Chris Harrison, GSC."— Presentation transcript:

1 The Arctic Alaska-Canada Connection Revisited Jaime Toro, West Virginia University Frances Toro, DOE NETL Ken Bird, USGS Chris Harrison, GSC

2 Wegener, 1929

3 Canada Basin Eurasia Basin IBCAO, 2001 Amerasia Basin Arctic Alaska- Chukotka Canada Basin Eurasia Basin Amerasia Basin

4 Rotational Model (Grantz et al. 1990)

5 Rotational Model Restoration Grantz et al. (1990)

6 Embry, 1990 Comparison of the Stratigraphy of the North Slope Basin to the Sverdrup Basin

7 North Slope Stratigraphy K. Bird, USGS MEGA-SEQUENCE

8 Brooks Range North Slope Canada Basin Prince Patrick Island

9 Seismic Line along the North Slope Coast NESWBarrow Arch Brookian Sequence Franklinian Sequence Ellesmerian Beaufortian

10 Seismic Line along the North Slope Coast NE Barrow Arch Brookian Sequence Franklinian Sequence Peard#1 Walakpa#1 S. Barrow#1 Carboniferous Lower Triassic Upper Triassic SW

11 Brooks Range Carb Carb. Perm. L. Trias L. Trias. L. Jur. North Slope R12

12 Brooks Range North Slope Canada Basin Prince Patrick Island

13 76 o 77 o Eglington Is. Melville Is. Prince Patrick Is. Brock Is. Mackenzie King Is.

14 Lawver et al. (2002) 150 Ma Late Jurassic

15 120 Ma Early Cretaceous Lawver et al. (2002)

16 Geology: Persits and Ulmishek, (2003), USGS Aeromagnetic Data: Glebovsky et al. (2000), Naval Research Lab

17 Conclusions Ellesmerian onlap edges provide a specific link between the North Slope and Prince Patrick Island The Rotational Model best fits the geological and geophysical data The problematic area is in western Chukotka and the Siberian Shelf

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