Exploration of the deep-sub-seafloor-biosphere frontiers; achievements and perspectives

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doi: 10.5575/geosoc.2017.0079
Author(s): Inagaki, Fumio; Morono, Yuki; Hoshino, Tatsuhiko; Ijiri, Akira; Xiao, Nan; Suzuki, Shino; Ishii, Shunichi; Uramoto, Go-ichiro; Terada, Takeshi; Imachi, Hiroyuki; Kubo, Yusuke
Author Affiliation(s): Primary:
Japan Agency for Marine-Earth Science and Technology, Kochi Institute for Core Sample Research, Kochi, Japan
Marine Works Japan, Japan
Volume Title: Chishitsugaku Zasshi Journal of the Geological Society of Japan
Source: Chishitsugaku Zasshi = Journal of the Geological Society of Japan, 124(1), p.77-92. Publisher: Nippon Chishitsugaku Gakkai, Tokyo, Japan. ISSN: 0016-7630
Note: In Japanese with English summary. 72 refs.; illus., incl. sects., sketch maps
Summary: Scientific ocean drilling over the past half-century has significantly expanded our knowledge of life, ocean, and Earth. The discovery of the spatially vast deep-subseafloor biosphere, a milestone scientific achievement, has extended the planetary habitability of life on Earth. To date, multiple lines of evidence form the core samples have demonstrated that a remarkable amount of physiologically unknown microbial life is present deep beneath the ocean floor where water supply and energy substrates are severely limited. Although subseafloor microbial ecosystems generally function extremely slowly, the consequence of long-term activity on geological timescales may play significant ecological roles in global biogeochemical carbon and other elemental cycles.
Year of Publication: 2018
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 02 Geochemistry; 07 Marine Geology and Oceanography; Bacteria; Biochemistry; Biomarkers; Biosphere; Deep-sea environment; East Pacific; Expedition 329; Expedition 337; Geochemistry; Integrated Ocean Drilling Program; Marine environment; Microorganisms; North Pacific; Northwest Pacific; Ocean floors; Organic compounds; Pacific Ocean; South Pacific; Southeast Pacific; West Pacific
Coordinates: S455800 S235100 W1230900 W1660000
N411035 N411036 E1421202 E1421201
Record ID: 2018101229
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.