IODP Expedition 337: Deep Coalbed Biosphere off Shimokita - Microbial processes and hydrocarbon system associated with deeply buried coalbed in the ocean
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in: Scientific Drilling, Jahrgang 21.2016, 27.06.2016, S. 17-28.
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T1 - IODP Expedition 337
T2 - Deep Coalbed Biosphere off Shimokita - Microbial processes and hydrocarbon system associated with deeply buried coalbed in the ocean
AU - Inagaki, Fumio
AU - Hinrichs, Kai-Uwe
AU - Kubo, Yusuke
AU - and the IODP Expedition 337 Scientists
AU - Bihan, Monika
AU - Bowden, Stephen A.
AU - Bowles, Marshall
AU - Elvert, Marcus
AU - Glombitza, Clemens
AU - Gross, Doris
AU - Harrington, Guy J.
AU - Heuer, Verena
AU - Hong, Wei Li
AU - Hori, Tomoyuki
AU - Hoshino, Tatsuhiko
AU - Ijiri, Akira
AU - Imachi, Hiroyuki
AU - Ito, Motoo
AU - Kaneko, Masanori
AU - Lever, Mark A.
AU - Li, Kevin
AU - Limmer, David
AU - Lin, Yu Shih
AU - Liu, Chang Hong
AU - Methé, Barbara A.
AU - Morita, Sumito
AU - Morono, Yuki
AU - Murayama, Masafumi
AU - Ohkouchi, Naohiko
AU - Ono, Shuhei
AU - Park, Young Soo
AU - Phillips, Stephen C.
AU - Prieto-Mollar, Xavier
AU - Purkey, Marcella
AU - Riedinger, Natascha
AU - Sanada, Yoshinori
AU - Sauvage, Justine
AU - Snyder, Glen
AU - Susilawati, Rita
AU - Takano, Yoshinori
AU - Tanikawa, Wataru
AU - Tasumi, Eiji
AU - Terada, Takeshi
AU - Tomaru, Hitoshi
AU - Trembath-Reichert, Elizabeth
AU - Wang, David T.
AU - Yamada, Yasuhiro
N1 - Publisher Copyright: © 2016 Author(s).
PY - 2016/6/27
Y1 - 2016/6/27
N2 - The Integrated Ocean Drilling Program (IODP) Expedition 337 was the first expedition dedicatedto subseafloor microbiology that used riser-drilling technology with the drilling vessel Chikyu. The drilling SiteC0020 is located in a forearc basin formed by the subduction of the Pacific Plate off the Shimokita Peninsula,Japan, at a water depth of 1180 m. Primary scientific objectives during Expedition 337 were to study the relationshipbetween the deep microbial biosphere and a series of 2 km deep subseafloor coalbeds and to explorethe limits of life in the deepest horizons ever probed by scientific ocean drilling. To address these scientificobjectives, we penetrated a 2.466 km deep sedimentary sequence with a series of lignite layers buried around2 km below the seafloor. The cored sediments, as well as cuttings and logging data, showed a record of dynamicallychanging depositional environments in the former forearc basin off the Shimokita Peninsula during the lateOligocene and Miocene, ranging from warm-temperate coastal backswamps to a cool water continental shelf.The occurrence of small microbial populations and their methanogenic activity were confirmed down to the bottomof the hole by microbiological and biogeochemical analyses. The factors controlling the size and viabilityof ultra-deep microbial communities in those warm sedimentary habitats could be the increase in demand ofenergy and water expended on the enzymatic repair of biomolecules as a function of the burial depth. Expedition337 provided a test ground for the use of riser-drilling technology to address geobiological and biogeochemicalobjectives and was therefore a crucial step toward the next phase of deep scientific ocean drilling.
AB - The Integrated Ocean Drilling Program (IODP) Expedition 337 was the first expedition dedicatedto subseafloor microbiology that used riser-drilling technology with the drilling vessel Chikyu. The drilling SiteC0020 is located in a forearc basin formed by the subduction of the Pacific Plate off the Shimokita Peninsula,Japan, at a water depth of 1180 m. Primary scientific objectives during Expedition 337 were to study the relationshipbetween the deep microbial biosphere and a series of 2 km deep subseafloor coalbeds and to explorethe limits of life in the deepest horizons ever probed by scientific ocean drilling. To address these scientificobjectives, we penetrated a 2.466 km deep sedimentary sequence with a series of lignite layers buried around2 km below the seafloor. The cored sediments, as well as cuttings and logging data, showed a record of dynamicallychanging depositional environments in the former forearc basin off the Shimokita Peninsula during the lateOligocene and Miocene, ranging from warm-temperate coastal backswamps to a cool water continental shelf.The occurrence of small microbial populations and their methanogenic activity were confirmed down to the bottomof the hole by microbiological and biogeochemical analyses. The factors controlling the size and viabilityof ultra-deep microbial communities in those warm sedimentary habitats could be the increase in demand ofenergy and water expended on the enzymatic repair of biomolecules as a function of the burial depth. Expedition337 provided a test ground for the use of riser-drilling technology to address geobiological and biogeochemicalobjectives and was therefore a crucial step toward the next phase of deep scientific ocean drilling.
UR - http://www.scopus.com/inward/record.url?scp=84976474142&partnerID=8YFLogxK
U2 - 10.5194/sd-21-17-2016
DO - 10.5194/sd-21-17-2016
M3 - Article
AN - SCOPUS:84976474142
VL - 21.2016
SP - 17
EP - 28
JO - Scientific Drilling
JF - Scientific Drilling
SN - 1816-8957
ER -