Title
Earth Processes: Reading the Isotopic Code (Geophysical Monograph Series),Used
Delivery time: 8-12 business days (International)
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 95.Publication of this monograph will coincide, to a precision of a few per mil, with the centenary of Henri Becquerel's discovery of "radiations actives" (C. R. Acad. Sci., Feb. 24, 1896). In 1896 the Earth was only 40 million years old according to Lord Kelvin. Eleven years later, Boltwood had pushed the Earth's age past 2000 million years, based on the first U/Pb chemical dating results. In exciting progression came discovery of isotopes by J. J. Thomson in 1912, invention of the mass spectrometer by Dempster (1918) and Aston (1919), the first measurement of the isotopic composition of Pb (Aston, 1927) and the final approach, using PbPb isotopic dating, to the correct age of the Earth: close2.9 Ga (Gerling, 1942), closer3.0 Ga (Holmes, 1949) and closest4.50 Ga (Patterson, Tilton and Inghram, 1953).
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We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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