Geochronology and Thermochronology by the 40Ar/39Ar Method

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Oxford University Press, 1999 - Science - 269 pages
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Argon isotopic dating is one of the most important techniques for estimating the ages of rocks and can be used on very small samples. It has been used to assign reliable ages to the Earth and numerous meteorites. This second edition covers the standard principles and methods and incorporates many of new developments from the last decade. It covers the basis of the method, technical aspects, data presentation, diffusion theory, thermochronology, and many applications and case studies.
 

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Contents

Historical Introduction
3
Basis of the ArAr Dating Method
9
Technical Aspects
44
ArAr Data Presentation
109
Diffusion Theory and Measurements
137
A 1 Derivation of the diffusion
159
ArAr Thermochronology
165
A 2 Closure temperature for volume
187
A 4 Calculation of ArſArage 7 3 Thermal histories of the continental
198
Applications and Case Histories 191
223
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Page 251 - Pankhurst, RJ, Moorbath, S.. Rex, DC, and Turner, G., 1973, Mineral age patterns in ca. 3700 my old rocks from west Greenland: Earth and Planetary Sci.
Page 252 - Jager, E. 1976. K-Ar ages on rock-forming minerals from the Central Alps. MEM 1ST GEOL MINERAL UNIV PADOVA 30, 31 pp.

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About the author (1999)

Ian McDougall is at Research School of Earth Sciences, The Australian National University. T. Mark Harrison is at University of California, Los Angeles. For many years Mark Harrison has been the chair of, and a writer for, a variety of UCLES exam papers including FCE, CAE, CPE, BEC and IELTS.He is also the author and co-author of a wide range of practice test books.

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