Age Determinations and Geological Studies, K-Ar Isotopic Ages, Report 15

Age Determinations and Geological Studies, K-Ar Isotopic Ages, Report 15 PDF

Author: R. D. Stevens

Publisher:

Published: 1982

Total Pages: 68

ISBN-13:

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"Two hundred and eight potassium-argon age determinations carried out on Canadian rocks and minerals are reported. Each age determination is accompanied by a description of the rock and mineral concentrate used: brief interpretative comments regarding the geological significance of each age are also provided where possible. The experimental procedures employed are described in brief outline and the constants used in the calculation of ages are listed. Two geological time-scales are reproduced in tabular form for ready reference and an index of all Geological Survey of Canada K-Ar age determinations published in this format has been prepared using NTS quadrangles as the primary reference." --

Age Determinations by the Geological Survey of Canada

Age Determinations by the Geological Survey of Canada PDF

Author: Geological Survey of Canada

Publisher:

Published: 1961

Total Pages: 142

ISBN-13:

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This is the second of a series of annual releases of potassium-argon age measurements carried out in the laboratories of the Geological Survey of Canada. The first report (GSC Paper 60-17) presented 98 determinations carried out during 1959; this publication includes an additional 152 age measurements completed in 1960.