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

doi:10.1007/978-4-431-54865-2_29

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

Material Science of Solar Planets

Research output: Chapter in Book/Report/Conference proceeding › Chapter

6 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	Subseafloor Biosphere Linked to Hydrothermal Systems
Subtitle of host publication	TAIGA Concept
Publisher	Springer Japan
Pages	369-386
Number of pages	18
ISBN (Electronic)	9784431548652
ISBN (Print)	9784431548645
DOIs	https://doi.org/10.1007/978-4-431-54865-2_29
Publication status	Published - Jan 1 2015

All Science Journal Classification (ASJC) codes

Earth and Planetary Sciences(all)

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10.1007/978-4-431-54865-2_29

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title = "ESR dating of barite in sea-floor hydrothermal sulfide deposits in the okinawa trough",

abstract = "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.",

author = "Taisei Fujiwara and Shin Toyoda and Ai Uchida and Ishibashi, {Jun Ichiro} and Shun{\textquoteright}Ichi Nakai and Asako Takamasa",

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T1 - ESR dating of barite in sea-floor hydrothermal sulfide deposits in the okinawa trough

AU - Fujiwara, Taisei

AU - Toyoda, Shin

AU - Uchida, Ai

AU - Ishibashi, Jun Ichiro

AU - Nakai, Shun’Ichi

AU - Takamasa, Asako

PY - 2015/1/1

Y1 - 2015/1/1

N2 - 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.

AB - 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.

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BT - Subseafloor Biosphere Linked to Hydrothermal Systems

PB - Springer Japan

ER -

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

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