MISC

2001年6月

Helium and carbon isotopes in fluorites: implications for mantle carbon contribution in an ancient subduction zone

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
  • J Yamamoto
  • ,
  • M Watanabe
  • ,
  • Y Nozaki
  • ,
  • Y Sano

107
1-3
開始ページ
19
終了ページ
26
記述言語
英語
掲載種別
DOI
10.1016/S0377-0273(00)00315-2
出版者・発行元
ELSEVIER SCIENCE BV

The concentrations of helium and carbon in fluorite associated with Cretaceous to Neogene (90-13 Ma) granitic magmatism in the Japanese are have been measured. Concentrations of Li, U, Th and Gd were measured to correct for secondary generated He-3. The CO2/He-3 of fluorites are almost uniform (1.5 x 10(10)-4 x 10(10)) and in fair agreement with the range of present island are volcanic gases. The calculated mantle C contribution in the Mesozoic subduction zone appear to have been identical to the present one (7-19%) indicating that the C flux from the mantle in supra-subduction zone environments has remained fairly constant during the past 70 million years. (C) 2001 Elsevier Science B.V. All rights reserved.

Web of Science ® 被引用回数 : 6

リンク情報
DOI
https://doi.org/10.1016/S0377-0273(00)00315-2
CiNii Articles
http://ci.nii.ac.jp/naid/80012633104
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000169651400002&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/S0377-0273(00)00315-2
  • ISSN : 0377-0273
  • CiNii Articles ID : 80012633104
  • Web of Science ID : WOS:000169651400002

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