Download or read book Geological Survey of Canada Current Research Online 2005 A4 written by Mike E. Villeneuve and published by Natural Resources Canada. This book was released on 2005 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Quilchena fossil site in the Okanagan Highlands of south central British Columbia is a rich repository of Eocene plant, insect, & fish fossils. Reliable age assignment of this site is critical in order to reconstruct the biogeographic, climatic, & evolutionary relationships between the flora & fauna of the Okanagan Highlands and those of other Tertiary sites around the world. Previous radiometric age determinations have been variable and inconclusive. This paper presents new data using uranium-lead dating of zircons from a thick tephra combined with argon-argon dating of sanidine crystals from the same bed. The age determined can be securely ascribed to the Quilchena fossils, since the dated tephra was deposited within the fossil-bearing shale & mudstone sequences.

Download or read book Geological Survey of Canada Current Research Online no 2006 A4 written by and published by Natural Resources Canada. This book was released on 2006 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Energy from Gas Hydrates Assessing the Opportunities and Challenges for Canada written by The Expert Panel on Gas Hydrates and published by Council of CanadianAcademies. This book was released on 2008 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Page 1 ENERGY FROM GAS HYDRATES: ASSESSING THE OPPORTUNITIES & CHALLENGES FOR CANADA The Expert Panel on Gas Hydrates Council of Canadian Academies Science Advice in the Public Interest Conseil des académies canadiennes EnErgy from gas HydratEs - assEssing tHE opportunitiEs and CHallEngEs for Canada Report of the Expert Panel on Gas Hydrates iv Energy from Gas Hydrates tHE CounCil of Canadian aCad [...] Engineering and the RSC: The Academies of. [...] The reviewers assessed the objectivity and quality of. [...] Gas Hydrate Basics - Introduction to the Science and Occurrence of. [...] Energy from Gas Hydrates 3 ovErviEW of gas HydratEs - a primEr on tHE ContEXt The gas held in naturally occurring gas hydrate is generated by microbial or thermal alteration of.

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Download or read book Measuring Discharge with Acoustic Doppler Current Profilers from a Moving Boat written by David S. Mueller and published by CreateSpace. This book was released on 2014-06-16 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mission of the U.S. Geological Survey (USGS) Water Resources Discipline is to provide the information and understanding needed for wise management of the Nation's water resources. Inherent in this mission is the responsibility of collecting data that accurately describe the physical, chemical, and biological attributes of water systems. These data are used for environmental and resource assessments by the USGS, other government agencies and scientific organizations, and the general public. Reliable and quality-assured data are essential to the credibility and impartiality of the water-resources appraisals carried out by the USGS.

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