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About this book
As in the original edition of 1988, this book covers the principles and practice of argon isotopic dating, a technique that has been used to determine the numerical age of the Earth. The greater precision of the 40Ar/39Ar method allows scientists to test smaller geological samples than its precursor, the K-Ar method, which required a comparison of different elements. The new edition will incorporate new developments made in 40Ar/39Ar application over the last decade, made possible by advances in lasers and mass spectrometry.
Contents
1. Historical introduction; 2. Basis of the 40AR/39AR dating method; 3. Technical aspects; 4. 40AR/39AR data presentation and interpretation App.4.1 Isochron analysis; 5. Diffusion theory and measurements: App.5.1 Derivation ofthe diffusion equation; App.5.2 Separation of the variables solution for a plane sheet; App.5.3 Translation to spherical coordinates; App.5.4 Sample diffusion calculation; 6. 40Ar/39Ar thermochronology; App.6.1 Closure temperature of first-order loss; 7. Application and case histories; References
Customer Reviews
By: Ian McDougall and Mark T Harrison
272 pages, 122 line illus
"The coverage of the book is broad and detailed, and the book contains a great deal of information on a variety of related topics. Many examples of studies on specific samples are used as illustrations throughout the book, almost all involving terrestrial materials. The book uses many tables, figures, and equations to illustrate concepts. it also contains 26 pages of references and a seven-page index. It is by far the most extensive treatment of the 40Ar/39Ar dating technique and its applications of which I am aware. Every laboratory performing radiometric dating may wish to have a copy." -- Donald D. Bogard, Meteoritics & Planetary Science, 36, 2001