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Plate tectonics alaskan tectonics
- 1. Introduction to Global Plate Tectonics Reconstructing Alaska Copyright 2014, Earth2Energy Educational Publishing. All Rights Reserved. Earth2Energy is a registered trademark.
- 2. North America Reconstructing Alaska
- 3. Introduction Alaska was assembled by a series of island and continental arc systems, and oceanic basin terranes which collided and accreted onto the western North American continent. The following set of slides presents plate reconstructions showing the development of Alaska from the Precambrian to its present day shape. The building of the North American Craton during the Precambrian Era is presented in a separate video presentation.
- 4. Precambrian
- 5. Early Paleozoic Central Terrane Yukon Terrane Arctic Terrane Ruby Terrane North American margin
- 6. Upper Paleozoic Arctic Central Central Arc Ruby Yukon NA margin Shelf sediments Ocean basalts Stikine Terrane Cache Creek Sea Quesnellian reefs
- 7. L.Triassic to E. Jurassic Central Central Arc Ruby Yukon Arctic NA margin Quesnellia Ocean basalts Stikine Terrane Cache Ck Farallon Plate
- 8. L.Triassic to E. Jurassic continued Central Central Arc Ruby Yukon Quesnellia Ocean basalts Cache Ck Stikine Arctic Kobuk Sea Togiak- Koyukuk
- 9. M. Jurassic Central Central Arc Ruby Yukon Quesnellia Ocean basalts Cache Ck Stikine Arctic Togiak- Koyukuk
- 10. L. Jurassic to E. Cretaceous Central Central Arc Ruby Yukon Quesnellia Ocean basalts Cache Ck Stikine Arctic Togiak- Koyukuk Wrangellia Peninsular Terrane Canadian Basin
- 11. Cretaceous Kula Plate Central Central Arc Ruby Yukon Quesnellia Ocean basalts Stikine Arctic Togiak- Koyukuk Wrangellia Peninsular Terrane Canadian Basin Colville
- 12. A B
- 13. L. Cretaceous to Early Paleocene Kula Plate Central Central Arc Ruby Yukon Quesnellia Ocean basalts Stikine Peninsular Terrane Canadian Basin Colville Togiak- Koyukuk Seward Peninsula Former Kahlita Seaway
- 14. Kula Plate Paleocene to M. Eocene Central Central Arc Ruby Yukon Quesnellia Ocean basalts Peninsular Terrane Canadian Basin Togiak- Koyukuk Yakutat Denali Fault Kluane Arc Southern Margin
- 15. Miocene to Present Yukon Quesnellia Ocean basalts Peninsular Terrane Canadian Basin Togiak- Koyukuk Kluane Arc Southern Margin Yakutat Queen Charlotte- Fairweather Faults
- 16. Alaskan Tectonics Arctic Sea Geology References: Landsat image of the Arctic Basin published by the Canadian Geological Survey. Posted on the internet. Alaska Geology References: Text and Alaska tectonic maps extracted from Plafker, G., Berg, H.C., 1994. Overview of the geology and tectonic evolution of Alaska. Chapter 33., The Geology of North America, Vol. G-1, The Geology of Alaska. The Geological Society of America. For additional information please contact William Szary, CPG, PG, EurGeol for details on purchasing this product. wszary@netzero.net Copyright 2014. Earth2Energy Educational Publishing. All rights reserved. Earth2Energy is a registered trademark.
- 17. Contact Information: William Szary, CPG, PG, EurGeol wszary@netzero.net Copyright 2014, Earth2Energy Educational Publishing. All rights reserved. Earth2Energy is a registered trademark.
- 18. Other video slide shows available on Slideshare.com: Part I. Plate Tectonics Theory Part II. Paleogeography. Part III. Global Tectonic Evolution. The Oceans. Part IV. Global Tectonic Evolution. The Continents. North American Continent Precambrian & Phanerozoic Companion Books Available from Amazon.com Keywork plate tectonics Introduction to Global Plate Tectonics I: plate tectonics theory; paleogeography; & the Ocean Basins. Introduction to Global Plate Tectonics II: North American, Alaska, The Appalachian Mountains, The Western US, Mexico & South American Geologic Histories Introduction to Global Plate Tectonics III: Europe, Russia, Mongolia, China, Korea, & Indochina Geologic Histories
- 19. THE END
Editor's Notes
- Introduction to Global Plate Tectonics