Author: Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 568
Book Description
Geological Survey Circular
Author: The Arctic Ocean
Author: Alan NairnPublisher: Springer
ISBN: 1475712480
Category : Science
Languages : en
Pages : 684
Book Description
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. ACKNOWLEDGMENTS I am indebted to many colleagues who, during the past 30 years, shared with me the excitement and pleasures of exploring the geology of northern Alaska. Among these are W. P. Brosge, H. N. Reiser, R. L. Detterman, A. K. Armstrong, A. L. Bowsher, E. G. Sable, I. L. Tailleur, C. G. Mull, M. D. Mangus, A. H. Lachenbruch, M. C. Lachenbruch, R. L. Morris, C. J.
U.S. Geological Survey Circular
Author: MMS.
Author: Geological Survey Professional Paper
Author: Mineral Resources Off the Northeastern Coast of the United States
Author: Frank T. ManheimPublisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 532
Book Description
U.S. Geological Survey Professional Paper
Author: Geological Survey Professional Paper
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category :
Languages : en
Pages : 568
Book Description
Tectonic Evolution of the Bering Shelf-Chukchi Sea-Arctic Margin and Adjacent Landmasses
Author: Elizabeth L. MillerPublisher: Geological Society of America
ISBN: 9780813723600
Category : Science
Languages : en
Pages : 414
Book Description
CD-ROM contains: Geographic Information Systems (GIS) Database and Supplementary Data for Chapters.
Mineral Resource Potential of the Stillwater Complex and Adjacent Rocks in the Northern Part of the Mount Wood and Mount Douglas Quadrangles, Southwestern Montana
Author: Benjamin Franklin LeonardPublisher:
ISBN:
Category : CRIB (Information retrieval system)
Languages : en
Pages : 292
Book Description