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Determination of 14C in Volcanic Gas By Accelerator Mass Spectrometry

Published online by Cambridge University Press:  18 July 2016

Hideki Yoshikawa ,
Hiromichi Nakahara ,
Mineo Imamura ,
Kouichi Kobayashi  and
Takashi Nakanishi
Hideki Yoshikawa*
Affiliation:
Kanazawa University. Kadoma-machi, Kanazawa, Ishikawa 920–1192, Japan
Hiromichi Nakahara
Affiliation:
Tokyo Metropolitan University, 1–1 Minami-Ohsawa, Hachioji, Tokyo 192–0397, Japan
Mineo Imamura
Affiliation:
National Museum of Japanese History, 117 Jonai-cho, Sakura, Chiba 285–8502, Japan
Kouichi Kobayashi
Affiliation:
Tokyo University, Hongo, Bunkyo-ku, Tokyo 113–8654, Japan
Takashi Nakanishi
Affiliation:
Kanazawa University. Kadoma-machi, Kanazawa, Ishikawa 920–1192, Japan
*
Corresponding author. Email: yoshika@tokai.jnc.go.jp.
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Abstract

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Radioactive nuclides such as radiocarbon can be good tracers for investigating the circulation of underground carbon and water. Volcanic gas can be sampled reliably for 14C analysis and prepared for analysis by accelerator mass spectrometry (AMS). In this paper, we establish a method for the measurement of 14C in volcanic gas, and measure the amounts of 14C in various volcanic gases. Samples of fumarolic gas from some Japanese volcanoes were found to contain 0.5 to 4.2 pMC, while those from White Island in New Zealand contained 2.6 pMC. Dissolved gas from Lake Nyos, Cameroon, contained 0.4 to 4.8 pMC. The data indicate a mixing process between surface carbon and deep carbon.

Type
Articles
Information
Radiocarbon , Volume 47 , Issue 2 , 2005 , pp. 211 - 219
Copyright
Copyright © 2005 by the Arizona Board of Regents on behalf of the University of Arizona 

References

Ellis, AJ, Mahon, WAJ. 1964. Natural hydrothermal systems and experimental hot-water/rock interactions. Geochimica et Cosmochimica Acta 28(8):1323–57.Google Scholar
Endo, K, Yanaga, M, Yoshikawa, H, Horiuchi, K, Nakahara, H, Murakami, Y. 1985. Determination of radon concentration in spring gases with a portable semiconductor detector. International Journal of Applied Radiation and Isotopes 36(3):197–201.Google Scholar
Giggenbach, WF. 1975. A simple method for the collection and analysis of volcanic gas samples. Bulletin of Volcanology 39:132–45.Google Scholar
Giggenbach, WF, Matsuo, S. 1991. Evaluation of results from Second and Third IAVCEI Field Workshops on Volcanic Gases, Mt Usu, Japan, and White Island, New Zealand. Applied Geochemistry 6:125–41.Google Scholar
Imamura, M, Hashimoto, Y, Yoshida, K, Yamane, I, Yamashita, H, Inoue, T, Tanaka, S, Nagai, H, Honda, M, Kobayashi, K, Takaoka, N, Ohba, Y. 1984. Tandem accelerator mass spectrometry of 10Be/9Be with internal beam monitor method. Nuclear Instruments and Methods in Physics Research B 233:211–6.Google Scholar
Jansen, HS. 1977. Natural C-14 in Broadlands Well 1976. Institute of Nuclear Sciences, Department of Scientific and Industrial Research Report, New Zealand, INS-R-236. 13 p.Google Scholar
Kamata, M. 1961. Distribution of radon in fumarolic gases in Japan. Nihon Kagaku Zasshi 82:1346. In Japanese.CrossRefGoogle Scholar
Kobayashi, K, Imamura, M, Nagai, H, Yoshida, K, Ohashi, H, Yoshikawa, H, Yamashita, H. 1990. Static operation of an AMS system using the beam monitor method. Nuclear Instruments and Methods in Physics Research B 52:254–8.Google Scholar
Matsuo, S, Ossaka, J, Hirabayashi, J, Ozawa, T, Kimishima, K. 1982. Chemical nature of volcanic gases of Usu Volcano, Japan. Bulletin of Volcanology 45:261–4.Google Scholar
Mizutani, Y, Sugiura, T. 1982. Variations in chemical and isotopic compositions of fumarolic gases from Showashinzan Volcano, Hokkaido, Japan. Geochemical Journal (Japan) 16:63–71.Google Scholar
Nozaki, T, Itoh, Y, Iwamoto, M, Shinyashiki, H, Nomura, K, Kimura, T, Fukushima, H. 1983. Charged particle activation analysis. RIKEN Accelerator Progress Report 17:96–97.Google Scholar
Yoshikawa, H, Sato, K, Yoshida, K, Kobayashi, K, Miura, T, Imamura, M, Homma, Y, Nakahara, H, Nozaki, T. 1987. Contamination of modern carbon in sample preparation for measurement of carbon-14 by AMS. Bunsekikagaku 36(11):755–60. In Japanese.Google Scholar