Development of Sampling Devices and Monitoring Systems to Study the Geochemical Environment within Active Hydrothermal Fields

• Ishibashi Junichiro

• Nakamura Koichi

• Okamura Kei

• Shitashima Kiminori

• Toki Tomohiro

• Tsunogai Urumu

Bibliographic Information

Other Title

• 海底熱水活動地帯の化学環境を明らかにする試み
• カイテイ ネッスイ カツドウ チタイ ノ カガク カンキョウ オ アキラカ ニ スル ココロミ

Abstract

The geochemical environment within active hydrothermal fields varies greatly, reflecting mixing of hydrothermal fluid and ambient cold seawater. Because chemosynthetic microorganisms utilize both reductive species in hydrothermal fluid and oxidants in seawater, description of the geochemical environment should provide important clues to activities of the microbiosphere within the hydrothermal fields. Specific devices have been developed to collect samples in order to study geochemical gradients in detail. Moreover, in situ chemical analyzers and chemical sensors for oceanographic use have made significant progress in monitoring time-series variations in the geochemical environment. During the Archaean Park Project (2000-2005), several instruments were developed and deployed in the Suiyo Seamount hydrothermal field. The results demonstrate that the geochemical environment above the seafloor in the active hydrothermal sites is strongly affected by bottom currents.

Journal

• Oceanography in Japan

  Oceanography in Japan 14 (2), 251-266, 2005

  The Oceanographic Society of Japan

Keywords

• in situ chemical analyzers
• chemical sensors
• hydrothermal fluid sampler
• sub-vent microbial biosphere

Details

• CRID: 1390001204380693376
• NII Article ID: 110003375607
• NII Book ID: AN10382760
• DOI: 10.5928/kaiyou.14.251
• ISSN: 21863105
• ISSN: 09168362
• HANDLE: 20.500.12000/37685
• NDL BIB ID: 7273780
• Web Site: https://u-ryukyu.repo.nii.ac.jp/records/2008856
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7273780
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed