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

Author: R. D. Stevens

Publisher:

Published: 1982

Total Pages: 68

ISBN-13:

DOWNLOAD EBOOK

"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." --

Advances in 40Ar/39Ar Dating
Advances in 40Ar/39Ar Dating

Author: F. Jourdan

Publisher: Geological Society of London

Published: 2014-04-02

Total Pages: 378

ISBN-13: 1862393605

DOWNLOAD EBOOK

Decoding the complete history of Earth and our solar system requires the placing of the scattered pages of Earth history in a precise chronological order, and the 40Ar/39Ar dating technique is one of the most trusted dating techniques to do that. The 40Ar/39Ar method has been in use for more than 40 years, and has constantly evolved since then. The steady improvement of the technique is largely due to a better understanding of the K/Ar system, an appreciation of the subtleties of geological material and a continuous refinement of the analytical tools used for isotope extraction and counting. The 40Ar/39Ar method is also one of the most versatile techniques with countless applications in archaeology, tectonics, structural geology, orogenic processes and provenance studies, ore and petroleum genesis, volcanology, weathering processes and climate, and planetary geology. This volume is the first of its kind and covers methodological developments, modelling, data handling, and direct applications of the 40Ar/39Ar technique.