Late Proterozoic To Early Tertiary Stratigraphy Of Somerset Island And Northern Boothia Peninsula District Of Franklin N W T
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Late Proterozoic to Early Tertiary Stratigraphy of Somerset Island and Northern Boothia Peninsula District of Franklin N W T Northwest Territories
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Author | : Geological Survey of Canada,W. Douglas Stewart |
Publsiher | : Unknown |
Total Pages | : 135 |
Release | : 1983 |
Genre | : Electronic Book |
ISBN | : OCLC:150466533 |
Download Late Proterozoic to Early Tertiary Stratigraphy of Somerset Island and Northern Boothia Peninsula District of Franklin N W T Northwest Territories Book in PDF, Epub and Kindle
Late Proterozoic to Early Tertiary Stratigraphy of Somerset Island and Northern Boothia Peninsula District of Franklin N W T
Author | : W. D. Stewart,Geological Survey of Canada |
Publsiher | : Geological Survey of Canada 1987. |
Total Pages | : 98 |
Release | : 1987 |
Genre | : Boothia Peninsula (Nunavut) |
ISBN | : STANFORD:36105033022497 |
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Description of the geology of Somerset Island and Boothia Peninsula, dominated by the Boothia Uplift with an Archean-Aphebian crystalline core flanked by sedimentary rocks of the Arctic platform and an overlying Paleozoic succession.
Geology of the Innuitian Orogen and Arctic Platform of Canada and Greenland
Author | : H.P. Trettin |
Publsiher | : Geological Society of America |
Total Pages | : 581 |
Release | : 1991 |
Genre | : Science |
ISBN | : 9780813754505 |
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Fourteen chapters discuss regional stratigraphy by time intervals from Precambrian to Quaternary, while other chapters describe the geography, geomorphology, tectonics, geophysical characteristics, and resources of the region. A summary chapter includes geologic maps, structural cross-sections, a geotectonic correlation chart, a gravity map, and a location map for exploration wells in the Arctic Islands and northern Greenland. A wealth of additional information is contained on the nine accompanying plates.
Browsing Science Research at the Federal Level in Canada
Author | : Brian B. Wilks |
Publsiher | : University of Toronto Press |
Total Pages | : 664 |
Release | : 2004-01-01 |
Genre | : Science |
ISBN | : 0802088112 |
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Wilks provides a historical background, list of publications, and description of activities for most of the major science initiatives undertaken at the federal level. He surveys a wide range of government documents and monographic and serial science collections used by both faculty and students.
Geological Survey of Canada Open File 3228
Author | : Anonim |
Publsiher | : Natural Resources Canada |
Total Pages | : 277 |
Release | : 2024 |
Genre | : Electronic Book |
ISBN | : 9182736450XXX |
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A Tale of Two Cratons
Author | : A. G. Jones,R.W. Carlson,H.S. Grütter |
Publsiher | : Gulf Professional Publishing |
Total Pages | : 522 |
Release | : 2004-03-11 |
Genre | : Science |
ISBN | : 044451614X |
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Given the established nature of geoscientific knowledge of the Kaapvaal craton compared to the Slave craton, and given the exciting new interdisciplinary results coming from the Kaapvaal Project and from Slave craton studies, scientists working on both cratons were brought together in a workshop to compare and contrast the nature of these two cratons. Of the 54 papers presented at the workshop, 24 are included in this volume. There are clearly major similarities and differences between these two Archean cratons. The crust of both was predominantly formed in the Mesoarchean. Both contain crustal sections consisting of terranes of different ages welded together by Archean accretionary events. Both crustal sections are underlain by lithospheric mantle sections consisting of peridotites that experienced extensive partial melt extraction between 2.9 Ga and 3.2 Ga, but this is where the similarities between the cratons end. One of the most striking differences between the Slave and Kaapvaal cartons is the apparent seismic homogeneity of the Kaapvaal craton's SCLM whereas the Slave craton is seismically layered. The seismic layering in the centre of the craton correlates laterally and with depth with electrical layering and geochemical layering. Taken together, these differences suggest that SCLM formation was different for the two cratons, implying that the search for a single causative formation process is bound to fail. Reprinted from the journal Lithos Volume 71, numbers 2-4.
Index to Publications
Author | : Geological Survey of Canada |
Publsiher | : Unknown |
Total Pages | : 180 |
Release | : 1985 |
Genre | : Geology |
ISBN | : MINN:31951P001641052 |
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Composition Deep Structure and Evolution of Continents
Author | : R.D. van der Hilst,W.F. McDonough |
Publsiher | : Elsevier |
Total Pages | : 341 |
Release | : 1999-10-22 |
Genre | : Science |
ISBN | : 0080529453 |
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The ensemble of manuscripts presented in this special volume captures the stimulating cross-disciplinary dialogue from the International Symposium on Deep Structure, Composition, and Evolution of Continents, Harvard University, Cambridge, Massachusetts, 15-17 October 1997. It will provide an update on recent research developments and serve as a starting point for research of the many outstanding issues. After its formation at mid-oceanic spreading centers, oceanic lithosphere cools, thickens, and subsides, until it subducts into the deep mantle beneath convergent margins. As a result of this continuous recycling process oceanic lithosphere is typically less than 200 million years old (the global average is about 80 Myr). A comprehensive, multi-disciplinary study of continents involves a wide range of length scales: tiny rock samples and diamond inclusions may yield isotope and trace element signatures diagnostic for the formation age and evolution of (parts of) cratons, while geophysical techniques (e.g., seismic and electromagnetic imaging) constrain variations of elastic and conductive properties over length scales ranging from several to many thousand kilometers. Integrating and reconciling this information is far from trivial and, as several papers in this volume document, the relationships between, for instance, formation age and tectonic behavior on the one hand and the seismic signature, heat flow, and petrology on the other may not be uniform but may vary both within as well as between cratons. These observations complicate attempts to determine the variations of one particular observable (e.g., heat flow, lithosphere thickness) as a function of another (e.g., crustal age) on the basis of global data compilations and tectonic regionalizations. Important conclusions of the work presented here are that (1) continental deformation, for instance shortening, is not restricted to the crust but also involves the lithospheric mantle; (2) the high wavespeed part of continental lithospheric mantle is probably thinner than inferred previously from vertically travelling body waves or form global surface-wave models; and (3) the seismic signature of ancient continents is more complex than expected from a uniform relationship with crustal age.