Amino acids in the 308°C deep-sea hydrothermal system of the Suiyo Seamount, Izu-Bonin Arc, Pacific Ocean

Yoshinori Takano, Kensei Kobayashi, Toshiro Yamanaka, Katsumi Marumo, Tetsuro Urabe

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24 Citations (Scopus)


Deep-sea hydrothermal systems are of significant interest as a new scientific frontier in a number of fields. This report analyzes data obtained in ocean-drilling surveys at submarine hydrothermal vents on the Suiyo Seamount in the Izu-Bonin Arc, Pacific Ocean. These surveys obtained direct data regarding subjacent extreme environments under extreme conditions of 308°C and greater than 14 MPa. Evaluation of the vertical distribution and stereochemistry of amino acids in such a vigorous hydrothermal system leads to a model of deep-sea subterranean chemistry and biology that describes a lack of evidence of abiotically synthesized amino acids. Large enantiomeric excesses of L-form amino acids supported the existence of a vigorous subjacent microbial oasis in a hydrothermal system.

Original languageEnglish
Pages (from-to)147-153
Number of pages7
JournalEarth and Planetary Science Letters
Issue number1-2
Publication statusPublished - Feb 28 2004



  • Amino acids
  • Benthic multi-coring system
  • Biological activity
  • Deep-sea hydrothermal system
  • Enantiomeric excesses

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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