抄録
The226Ra-210Pb and228Ra-228Th ages were obtained for barite crystals in hydrothermal sulfide deposits taken at the Okinawa Trough and the Southern Mariana Trough. After calibrating the measurement systems with standard samples with pitchblende, it was confirmed that the U and Th concentrations obtained for GSJ samples are consistent with literature values. It was shown that radon does not escape from barite crystals extracted from hydrothermal sulfide deposits, which indicates that226Ra-210Pb dating method works for these barite crystals. Most of the226Ra-210Pb and228Ra-228Th ages are younger than ESR and U-Th ages, where this inconsistency would be explained by the mixture of the barite crystals with younger and older ages, formed by several hydrothermal events.
| 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 | 607-616 |
| ページ数 | 10 |
| 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 |
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All Science Journal Classification (ASJC) codes
- Earth and Planetary Sciences(all)
これを引用
226ra-210pb and228ra-228th dating of barite in submarine hydrothermal sulfide deposits collected at the okinawa trough and the Southern Mariana trough. / Uchida, Ai; Toyoda, Shin; Ishibashi, Junichiro; Nakai, Shun’Ichi.
Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept. Springer Japan, 2015. p. 607-616.研究成果: 著書/レポートタイプへの貢献 › 章
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TY - CHAP
T1 - 226ra-210pb and228ra-228th dating of barite in submarine hydrothermal sulfide deposits collected at the okinawa trough and the Southern Mariana trough
AU - Uchida, Ai
AU - Toyoda, Shin
AU - Ishibashi, Junichiro
AU - Nakai, Shun’Ichi
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The226Ra-210Pb and228Ra-228Th ages were obtained for barite crystals in hydrothermal sulfide deposits taken at the Okinawa Trough and the Southern Mariana Trough. After calibrating the measurement systems with standard samples with pitchblende, it was confirmed that the U and Th concentrations obtained for GSJ samples are consistent with literature values. It was shown that radon does not escape from barite crystals extracted from hydrothermal sulfide deposits, which indicates that226Ra-210Pb dating method works for these barite crystals. Most of the226Ra-210Pb and228Ra-228Th ages are younger than ESR and U-Th ages, where this inconsistency would be explained by the mixture of the barite crystals with younger and older ages, formed by several hydrothermal events.
AB - The226Ra-210Pb and228Ra-228Th ages were obtained for barite crystals in hydrothermal sulfide deposits taken at the Okinawa Trough and the Southern Mariana Trough. After calibrating the measurement systems with standard samples with pitchblende, it was confirmed that the U and Th concentrations obtained for GSJ samples are consistent with literature values. It was shown that radon does not escape from barite crystals extracted from hydrothermal sulfide deposits, which indicates that226Ra-210Pb dating method works for these barite crystals. Most of the226Ra-210Pb and228Ra-228Th ages are younger than ESR and U-Th ages, where this inconsistency would be explained by the mixture of the barite crystals with younger and older ages, formed by several hydrothermal events.
UR - http://www.scopus.com/inward/record.url?scp=84944520129&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84944520129&partnerID=8YFLogxK
U2 - 10.1007/978-4-431-54865-2_47
DO - 10.1007/978-4-431-54865-2_47
M3 - Chapter
AN - SCOPUS:84944520129
SN - 9784431548645
SP - 607
EP - 616
BT - Subseafloor Biosphere Linked to Hydrothermal Systems
PB - Springer Japan
ER -