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Author: R. D. Stevens Publisher: ISBN: Category : Science Languages : en Pages : 68
Book Description
"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." --
Author: R. D. Stevens Publisher: ISBN: Category : Science Languages : en Pages : 68
Book Description
"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." --
Author: David M. Miller Publisher: Geological Society of America ISBN: 0813722993 Category : Science Languages : en Pages : 434
Book Description
Demonstrating the multidisciplinary approach currently used to understand Jurassic magmatism and tectonics in western North America, 19 papers report a wealth of new data in the fields of structural geology, igneous petrology and isotope geochemistry, geochronology, sedimentology, and volcanology. T
Author: R. D. Stevens
Author: R. D. Stevens
Author: R. K. Wanless
Author: R. D. Stevens
Author: R. K. Wanless
Author: 
Author: 
Author: Geological Survey (U.S.)
Author: David M. Miller
Author: 
Author: R. K. Wanless