ESR dating of barite in sea-floor hydrothermal sulfide deposits in the okinawa trough

Taisei Fujiwara, Shin Toyoda, Ai Uchida, Jun Ichiro Ishibashi, Shun’Ichi Nakai, Asako Takamasa

研究成果: 著書/レポートタイプへの貢献

3 引用 (Scopus)

抜粋

ESR (electron spin resonance) ages were determined for barite crystals extracted from hydrothermal sulfide deposits taken at Daiyon-Yonaguni Knoll field, Hatoma Knoll field, Iheya North Knoll field, Hakurei Site of Izena Hole field, Yoron Hole field of the Okinawa Trough. The ages range from 4.1 to 16,000 years, being consistent with detection of 228Ra in younger samples and radioactive equilibrium/disequilibrium between radium and daughter nuclei. The variation of the ages within each sample is mostly within the statistical error range. The relative order of the ages is consistent with the result of 226Ra-210Pb method, but the determining absolute ages is still an issue. The order of ages of the 5 hydrothermal fields would be arranged, from young to old as follows; Yoron Hole field, Daiyon-Yonaguni Knoll field, Hatoma Knoll field, being nearly equal to Iheya North Knoll field.

元の言語英語
ホスト出版物のタイトルSubseafloor Biosphere Linked to Hydrothermal Systems
ホスト出版物のサブタイトルTAIGA Concept
出版者Springer Japan
ページ369-386
ページ数18
ISBN(電子版)9784431548652
ISBN(印刷物)9784431548645
DOI
出版物ステータス出版済み - 1 1 2015

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

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  • これを引用

    Fujiwara, T., Toyoda, S., Uchida, A., Ishibashi, J. I., Nakai, SI., & Takamasa, A. (2015). ESR dating of barite in sea-floor hydrothermal sulfide deposits in the okinawa trough. : Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept (pp. 369-386). Springer Japan. https://doi.org/10.1007/978-4-431-54865-2_29