宣誓书
发表于 2025-3-23 11:19:07
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epicardium
发表于 2025-3-23 15:33:05
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innate
发表于 2025-3-23 22:06:41
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alabaster
发表于 2025-3-23 23:59:20
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MAL
发表于 2025-3-24 03:09:50
Radiocarbon Nomenclature, Theory, Models, and Interpretation: Measuring Age, Determining Cycling Ra that are commonly used for interpreting .C data in terms of its three major uses: (1) determining the time elapsed since C in a closed system was isolated from the atmosphere; (2) estimating the rate of exchange of C between reservoirs in open systems; and (3) estimating the contributions of different C sources to a mixture.
平息
发表于 2025-3-24 09:41:42
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Adherent
发表于 2025-3-24 12:13:57
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阻挡
发表于 2025-3-24 16:24:33
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Plaque
发表于 2025-3-24 19:45:02
Radiocarbon and the Global Carbon Cycle,past several hundred years. With this backdrop, the chapter then examines the overall distribution of C isotopes as a framework for understanding the global C cycle and the changes that are happening to it. These important themes are followed in more detail throughout other chapters of this book, gi
AUGER
发表于 2025-3-25 01:02:12
Radiocarbon Dating: Development of a Nobel Method,d F. Libby (1909–1980) and his collaborators, James R. Arnold (1923–2013), and Ernest C. Anderson (1920–2013). It also considers the historical background and earlier discoveries that Libby and others drew upon in forming the concepts that he employed in developing this technique. Libby received the