globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2387
论文题名:
Presence of oxygen and aerobic communities from sea floor to basement in deep-sea sediments
作者: D'hondt S.; Inagaki F.; Zarikian C.A.; Abrams L.J.; Dubois N.; Engelhardt T.; Evans H.; Ferdelman T.; Gribsholt B.; Harris R.N.; Hoppie B.W.; Hyun J.-H.; Kallmeyer J.; Kim J.; Lynch J.E.; Mckinley C.C.; Mitsunobu S.; Morono Y.; Murray R.W.; Pockalny R.; Sauvage J.; Shimono T.; Shiraishi F.; Smith D.C.; Smith-Duque C.E.; Spivack A.J.; Steinsbu B.O.; Suzuki Y.; Szpak M.; Toffin L.; Uramoto G.; Yamaguchi Y.T.; Zhang G.-L.; Zhang X.-H.; Ziebis W.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2015
卷: 8, 期:4
起始页码: 299
结束页码: 304
语种: 英语
Scopus关键词: bacterium ; basement rock ; biogeochemistry ; deep sea ; microbial community ; oxic conditions ; oxygen ; seafloor ; sediment analysis ; sediment chemistry
英文摘要: The depth of oxygen penetration into marine sediments differs considerably from one region to another. In areas with high rates of microbial respiration, O 2 penetrates only millimetres to centimetres into the sediments, but active anaerobic microbial communities are present in sediments hundreds of metres or more below the sea floor. In areas with low sedimentary respiration, O 2 penetrates much deeper but the depth to which microbial communities persist was previously unknown. The sediments underlying the South Pacific Gyre exhibit extremely low areal rates of respiration. Here we show that, in this region, microbial cells and aerobic respiration persist through the entire sediment sequence to depths of at least 75 metres below sea floor. Based on the Redfield stoichiometry of dissolved O 2 and nitrate, we suggest that net aerobic respiration in these sediments is coupled to oxidation of marine organic matter. We identify a relationship of O 2 penetration depth to sedimentation rate and sediment thickness. Extrapolating this relationship, we suggest that oxygen and aerobic communities may occur throughout the entire sediment sequence in 15-44% of the Pacific and 9-37% of the global sea floor. Subduction of the sediment and basalt from these regions is a source of oxidized material to the mantle.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106275
Appears in Collections:气候减缓与适应
科学计划与规划

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作者单位: Integrated Ocean Drilling Program Expedition, 329 Shipboard Scientific Party, Narragansett, RI, United States; Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Road, Narragansett, RI, United States; Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Monobe B200, Nankoku-Kochi, Japan; International Ocean Discovery Program, Texas A and M University, 1000 Discovery Drive, College Station, TX, United States; Center for Marine Science, University of North Carolina at Wilmington, 5600 Marvin K Moss Lane, Wilmington, NC, United States; Swiss Federal Institute of Aquatic Science and Technology, Ueberlandstrasse 133, Duebendorf, Switzerland; Institut für Chemie und Biologie Des Meeres, Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany; Department of Biogeochemistry, Max-Planck-Institute of Marine Microbiology, Celsiusstrasse 1, Bremen, Germany; Center for Geomicrobiology, Aarhus Universitet, Ny Munkegade 114, Aarhus, Denmark; College of Earth, Oceanic, and Atmospheric Sciences, Oregon State University, 104 COAS Admin Building, Corvallis, OR, United States; Minnesota State University, Mankato, Department of Chemistry and Geology, Ford Hall 241, Mankato, MN, United States; Department of Marine Sciences and Convergent Technology, Hanyang University, 1271 Sa-3 dong, Ansan, Gyeonggi-do, South Korea; GFZ German Research Centre for Geosciences, Section 4.5 Geomicrobiology, Telegrafenberg, Potsdam, Germany; Earth Systems Sciences, Yonsei University, 134 Shinchon dong, Seoul, South Korea; School of Earth Sciences, University of Melbourne, McCoy Building, Melbourne, VIC, Australia; Department of Oceanography, Texas A and M University, College Station, TX, United States; Institute for Environmental Sciences, Shizuoka University, 52-1 Yada, Suruuga-ku, Shizuoka, Japan; Department of Earth and Environment, Boston University, 675 Commonwealth Avenue, Boston, MA, United States; Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan; Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, Japan; National Oceanography Centre, University of Southampton, European Way, Southampton, United Kingdom; Department of Earth Science, University of Bergen, Allegaten 41, Bergen, Norway; Earth and Planetary Science Department, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan; School of Chemical Sciences, Dublin City University, Collins Avenue, Glasnevin, Dublin 9, Ireland; Institut Français de Recherche pour l'Exploitation de la Mer, Centre Bretagne, Plouzané, France; South China Sea Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Shinan Region, Qingdao, China; College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, China; Department of Biological Sciences, University of Southern California, 3616 Trousdale Boulevard, Los Angeles, CA, United States

Recommended Citation:
D'hondt S.,Inagaki F.,Zarikian C.A.,et al. Presence of oxygen and aerobic communities from sea floor to basement in deep-sea sediments[J]. Nature Geoscience,2015-01-01,8(4)
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