Datação por radiocarbono: diferenças entre revisões
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Revisão das 14h24min de 8 de outubro de 2012
Datação por radiocarbono é um método de datação radiométrica que usa o radioisótopo de ocorrência natural carbono-14 (14C) para determinar a idade de materiais carbonáceo até cerca de 60.000 anos.[1] Idades por radiocarbono bruto, ou seja, não-calibrado, são geralmente reportadas em anos de radiocarbono "Antes do Presente" (AP), "Presente" sendo definido como 1950 AD. Tais idades brutas podem ser calibradas para gerarem datas de calendário.
A técnica de datação por radiocarbono foi desenvolvida por Willard Libby e seus colegas na Universidade de Chicago em 1949.[2]
Referências
- ↑ Plastino, W.; Kaihola, L.; Bartolomei, P.; Bella, F. (2001). «Cosmic Background Reduction In The Radiocarbon Measurement By Scintillation Spectrometry At The Underground Laboratory Of Gran Sasso» (PDF). Radiocarbon. 43 (2A): 157–161
- ↑ Arnold, J. R.; Libby, W. F. (1949). «Age Determinations by Radiocarbon Content: Checks with Samples of Known Age». Science. 110 (2869): 678–680. PMID 15407879. doi:10.1126/science.110.2869.678
Bibliografia
- Bowman, Sheridan (1990). Interpreting the Past: Radiocarbon Dating. Berkeley: University of California Press. ISBN 0520070372
- Currie, L. (2004). «The Remarkable Metrological History of Radiocarbon Dating II» (PDF). J. Res. Natl. Inst. Stand. Technol. 109: 185–217
- de Vries, H. L. (1958). "Variation in Concentration of Radiocarbon with Time and Location on Earth", Proceedings Koninlijke Nederlandse Akademie Wetenschappen B, 61: 94-102; and in Researches in Geochemistry, P. H. Abelson (Ed.) (1959) Wiley, New York, p. 180.
- Friedrich, M.; et al. (2004). «The 12,460-Year Hohenheim Oak and Pine Tree-Ring Chronology from Central Europe—a Unique Annual Record for Radiocarbon Calibration and Paleoenvironment Reconstructions». Radiocarbon. 46: 1111–1122
- Gove, H. E. (1999) From Hiroshima to the Iceman. The Development and Applications of Accelerator Mass Spectrometry. Bristol: Institute of Physics Publishing.
- Kovar, Anton J. (1966). «Problems in Radiocarbon Dating at Teotihuacan». American Antiquity. 31: 427–430. doi:10.2307/2694748
- Lerman, J. C.; Mook, W. G.; Vogel, J. C.; de Waard, H. (1969). «Carbon-14 in Patagonian Tree Rings». Science. 165 (3898): 1123–1125. PMID 17779805. doi:10.1126/science.165.3898.1123 ; Lerman, J. C., Mook, W. G., and Vogel, J. C. (1970) Proc. 12th Nobel Symp.
- Lorenz, R. D.; Jull, A. J. T.; Lunine, J. I.; Swindle, T. (2002). «Radiocarbon on Titan». Meteoritics and Planetary Science. 37: 867–874
- Mook, W. G.; van der Plicht, J. (1999). «Reporting 14C activities and concentrations» (PDF). Radiocarbon. 41: 227–239
- Weart, S. (2004) The Discovery of Global Warming - Uses of Radiocarbon Dating.
- Willis, E.H. (1996) Radiocarbon dating in Cambridge: some personal recollections. A Worm's Eye View of the Early Days.