Incluye bibliografía e índice: páginas 635-672

1. Continental plates and accreted oceanic terranes in the arctic.. 2. Geology of Alaska bordering the arctic ocean.. 3. The north American plate from the arctic archipelago to the romanzof mountains.. 4. Evolution of the Canadian arctic islands: a transition between the Atlantic and arctic oceans.. 5. The northern margin of Greenland from Baffin bay to the Greenland sea.. 6. The geology of Svalbard, the western part of the Barents sea, and the continental margin of Scandinavia.. 7. Geology of the soviet arctic: kola peninsula to lena river.. 8. Tectonics of the soviet far east.. 9. The tectonic zones of northeastern USSR and the formation of its continental crust.. 10. Geology and physiography of the continental margin north of Alaska and implications for the origin of the Canada basin.. 11. The greenland-norwegian sea and Iceland environment: geology and geophysics.. 12. Geology and geophysics of the amerasian basin.. Index

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This trip backward in time capsulizes in a general way the geologic development of the area that is now northern Alaska. The Cretaceous through Recent history is predominantly one of erosion of the ancient Brooks Range and filling of the Colville Geosyncline under processes like those in Operation today. All the rocks older than Jurassic, however, were deposited far from their present sites. One of the intriguing tectonic puzzles involves the geographic positions and relative timing of events that occurred during the orogeny that built the Brooks Range. I suggest that pre-Cretaceous deposition took place far to the north along the western margin of the Caledonides. Subsequently, the region that is now northern Alaska moved southward and impinged upon a northward moving plate, or plates, from the Pacific region. Interactions between these two major parts of the earth's crust produced the Brooks Range during the Jurassic. Later developments reflect continuing readjustments of the northern third of of thrust Alaska as southward movement was dissipated in diverse systems faulting and lateral displacement. Inglés

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