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The Arctic Alaska-Canada Connection Revisited

The Arctic Alaska-Canada Connection Revisited. Jaime Toro, West Virginia University Frances Toro, DOE NETL Ken Bird, USGS Chris Harrison, GSC. Wegener, 1929. Arctic Alaska- Chukotka. Eurasia Basin. Eurasia Basin. Amerasia Basin. Amerasia Basin. Canada Basin. Canada Basin.

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The Arctic Alaska-Canada Connection Revisited

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

  4. Rotational Model (Grantz et al. 1990)

  5. Rotational Model Restoration Grantz et al. (1990)

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

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

  8. Prince Patrick Island Canada Basin North Slope Brooks Range

  9. Seismic Line along the North Slope Coast Barrow Arch NE Brookian Sequence SW Beaufortian Ellesmerian Franklinian Sequence

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

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

  12. Prince Patrick Island Canada Basin North Slope Brooks Range

  13. Brock Is. MackenzieKing Is. Prince Patrick Is. 77o 76o Melville Is. Eglington Is.

  14. Lawver et al. (2002) 150 MaLate Jurassic

  15. Lawver et al. (2002) 120 MaEarly Cretaceous

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

  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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