Item type |
デフォルトアイテムタイプ(フル)(1) |
公開日 |
2018-02-06 |
タイトル |
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タイトル |
Tarama Knoll: Geochemical and biological profiles of hydrothermal activity |
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言語 |
en |
作成者 |
Yamanaka, Toshiro
Nagashio, Hiromi
Nishio, Ryu
Kondo, Kazuna
Noguchi, Takuroh
Okamura, Kei
Nunoura, Takuro
Makita, Hiroko
Nakamura, Kentaro
Watanabe, Hiromi
Inoue, Kazuhiro
Toki, Tomohiro
Iguchi, Kouichiro
Tsunogai, Urumu
Nakada, Ryoichi
Ohshima, Shogo
Toyoda, Shin
Kawai, Jun
Yoshida, Naohiro
Ijiri, Akira
Sunamura, Michinari
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Hydrothermal activity |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Hydrothermal plume |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Southern Okinawa Trough |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Tarama Knoll |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
Tarama Knoll is located about 60 km north of Tarama Island, Sakishima Islands, southwestern Japan. The knoll has an almost conical shape, with foot and summit depths of 2,000 and 1,490 m (total relief = 510 m) from the sea surface, respectively. This area has been identified as a possible active submerged volcano called “Tarama Knoll” (Otani et al. 2004). However, there are actually two separate knolls in the area. This knoll is located northeast of the other, which is named Tarama Hill. During the KT05-26 cruise on the R/V Tanseimaru, a methane anomaly was detected near the seafloor around the area and was considered to be of possible hydrothermal origin. Based on visual observation of the seafloor and its bathymetry, this knoll is considered a pumice cone. Dense turbid water is often observed around summit of the knoll, and a methane anomaly was detected in the water. These observations suggest that the turbid water is a hydrothermal plume. An iron-rich, red-brown sediment-covered area was discovered at a depth of 1,510–1,540 m on the southwestern slope near the summit. At the red-brown sediment area, a weak shimmering of clear fluid could be observed, and the fluid temperature reached 20 °C. Sampled shimmering fluid showed a high silica concentration (≥1 mM), indicating an interaction between the fluid and the surrounding rock. These chemical data support the occurrence of active hydrothermal circulation at Tarama Knoll. |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
図書の1章 |
出版者 |
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言語 |
en |
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出版者 |
Springer Japan |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ |
book |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_2f33 |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
識別子 |
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識別子 |
http://hdl.handle.net/20.500.12000/37666 |
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識別子タイプ |
HDL |
関連情報 |
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識別子タイプ |
ISBN |
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関連識別子 |
978-4-431-54864-5 |
関連情報 |
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識別子タイプ |
ISBN |
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関連識別子 |
978-4-431-54865-2 |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1007/978-4-431-54865-2_40 |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
info:doi/10.1007/978-4-431-54865-2_40 |
収録物名 |
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言語 |
en |
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収録物名 |
Subseafloor Biosphere Linked to Global Hydrothermal Systems; TAIGA Concept |
書誌情報 |
p. 497,
発行日 2015-01-10
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