Geological Survey Of Canada Current Research Online 2005 A4
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Geological Survey Of Canada Current Research Online 2005 A4
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Author : Mike E. Villeneuve
language : en
Publisher: Natural Resources Canada
Release Date : 2005
Geological Survey Of Canada Current Research Online 2005 A4 written by Mike E. Villeneuve and has been published by Natural Resources Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Geological time categories.
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.
Geological Survey Of Canada Current Research Online No 2006 A4
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Author :
language : en
Publisher: Natural Resources Canada
Release Date : 2006
Geological Survey Of Canada Current Research Online No 2006 A4 written by and has been published by Natural Resources Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Lead ores categories.
Current Research
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Author :
language : en
Publisher:
Release Date : 1989
Current Research written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Current Research
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Author : Geological Survey of Canada
language : en
Publisher:
Release Date : 1981
Current Research written by Geological Survey of Canada and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Canada categories.
Geological Survey Of Canada Radiocarbon Dates Xxxii
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Author : R. McNeely
language : en
Publisher:
Release Date : 1996
Geological Survey Of Canada Radiocarbon Dates Xxxii written by R. McNeely and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Geology categories.
Current Research
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Author :
language : en
Publisher:
Release Date : 1978
Current Research written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Geology categories.
Current Research Part C
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Author :
language : en
Publisher:
Release Date : 1991
Current Research Part C written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Canadian Shield categories.
Canadian Journal Of Earth Sciences
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Author :
language : en
Publisher:
Release Date : 2006
Canadian Journal Of Earth Sciences written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Geology categories.
2005 Reconnaissance Field Program In Peel Plateau And Peel Plain Region Northwest Territoreis And Yukon Territory
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Author :
language : en
Publisher:
Release Date : 2006
2005 Reconnaissance Field Program In Peel Plateau And Peel Plain Region Northwest Territoreis And Yukon Territory written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Geology categories.
Miscellaneous Report
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Author : Geological Survey of Canada
language : en
Publisher:
Release Date : 1987
Miscellaneous Report written by Geological Survey of Canada and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Geology categories.