Ordovician Paleontology of the Northern Hudson Bay Lowland PDF Download
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Author: Samuel J. Nelson
Publisher: Geological Society of America
ISBN: 0813710901
Category : Paleontology
Languages : en
Pages : 199
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Book Description
Author: Samuel J. Nelson
Publisher: Geological Society of America
ISBN: 0813710901
Category : Paleontology
Languages : en
Pages : 199
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1492
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Book Description
Author: I.P. Martini
Publisher: Elsevier
ISBN: 0080870821
Category : Science
Languages : en
Pages : 515
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Book Description
The various chapters of this book have been written by researchers who are still working in the Canadian Inland Seas region. The chapters synthesize what is known about these seas, yet much still is to be learnt. It is hoped that this collection of information will serve as a springboard for future, much needed, studies in this fascinating, diverse region, and will stimulate comparative analyses with other subarctic and arctic basins of the world. The Canadian Inland Seas are the only remnants, albeit cold, of the ancient cratonic marine basins which occupied central North America throughout the Paleozoic and part of the Mesozoic. Precambrian rocks and gently dipping Paleozoic sedimentary rocks underlie the seas. The area is also close to the centers of Pleistocene glaciations. The coastal areas represent an emerged landscape of the post-glacial Tyrrell sea, as the region has been isostatically uplifted to about 350 meters since glacial times. A total of 56 fish species inhabit Hudson Bay and James Bay. Seals, whales and one of the largest and southernmost populations of polar bears inhabit the seas as well. The coastal areas are important habitats for migratory bird populations, some of which migrate from as far away as Southern Argentina.The ostic environment has preserved these regions relatively unchanged by man, with only a major harbour at Churchill, Manitoba, which is active for part of the year, and a second large, rail-terminal settlement in the south at Moosonee, Ontario. A few, small, native Indian and Inuit villages dot the coasts. The seas are being affected indirectly by the damming of rivers for the generation of hydroelectric power, and by drainage diversions towards the man-made reservoirs. A major project is being completed in Quebec east of James Bay, but other rivers in Ontario and Manitoba have been dammed as well. Undoubtedly freshwater is one of the more important resources of the area, however its exploitation needs careful thought because of the possible long-range effects on the environment, particularly the coastal marshes, which sustain much of the eastern American intercontinental migratory avifauna. Other resources occur in the regions, primarily minerals and perhaps petroleum. For the most part however, such resources remain to be discovered.
Author: James Ellis Christopher
Publisher: Regina : Saskatchewan Geological Society
ISBN: 9780921547242
Category : Reference
Languages : en
Pages : 314
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Book Description
Author: Matthew H. Nitecki
Publisher: Springer Science & Business Media
ISBN: 9780306462016
Category : Science
Languages : en
Pages : 280
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Book Description
Receptaculitids are extinct high-level fossils that provide a window into the history of life. After the discovery and analysis of a deposit of phosphatized receptaculitids on the Baltic Sea island of Öland, the authors conclude that receptaculitids possess an attribute not found in any other group of organisms, living or fossil.
Author: Jisuo Jin
Publisher: NRC Research Press
ISBN: 9780660182834
Category : Nature
Languages : en
Pages : 134
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Book Description
Because of their generally great abundance and high diversity, brachiopods from the Red River and Stony Mountain formations of southern Manitoba are important to understanding the pattern, process, and rate of evolution, radiation, and extinction of the North American epicontinental marine shelly benthos during the Late Ordovician. This report presents a detailed taxonomic treatment of these brachiopods, coupled with an assessment of their implications for biostratigraphy, palaeoecology, and palaeobiogeography at continental and global scales.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1490
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Book Description
1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.
Author: B. V. Sanford
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 130
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Book Description
Author: Library of Congress. Copyright Office
Publisher: Copyright Office, Library of Congress
ISBN:
Category : Copyright
Languages : en
Pages : 1260
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Book Description
Includes Part 1, Number 2: Books and Pamphlets, Including Serials and Contributions to Periodicals July - December)
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 756
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Book Description
