Deep Carbon Observatory Symposium in Yokohama

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Recent progress of the Deep Carbon Observatory (DCO) is transforming our understanding of deep carbon in Earth. DCO leverages the knowledge and skills of a global, interdisciplinary research community of scientists with a shared passion for transforming our knowledge of carbon. Carbon is the most versatile and influential of all chemical elements, yet its nature, extent, and behavior remain largely unexplored on a planetary scale. The international DCO science community will expand our knowledge of deep carbon and its impacts on the lithosphere, biosphere, hydrosphere, and atmosphere.
The DCO Symposium was held in 5F Room 502, Pacifico Yokohama Conference Center on Sunday, 26 June 2016 from 9:00 a.m. - 5:30 p.m. Speakers presented recent exciting results from the Deep Life, Deep Energy, Reservoirs and Fluxes, and Extreme Physics and Chemistry Communities. We also take this opportunity to warmly welcome members of the Japanese geochemical, geophysical and geomicrobiological communities to join the DCO Science Network.



Symposium Organizing Committee:

Eiji Ohtani (Tohoku University)
Fumio Inagaki (JAMSTEC)
Kagi Hiroyuki (University of Tokyo)
Yuji Sano (University of Tokyo)


The symposium agenda is listed below. Download the program here (PDF with links)
8:30-9:00           Registration Open
9:00-9:15           Symposium Organizing Committee
                                  Welcoming remarks
                           Robert Hazen, Carnegie Institution of Washington
                                  Introduction of the DCO
Session 1: Deep Life and Deep Energy
9:15-9:30            Mitchell Sogin, Marine Biological Laboratory
                                  Introduction to the Deep Life Community
9:30-9:45            Isabelle Daniel, Université Claude Bernard Lyon 1
                                  Introduction to the Deep Energy Community
9:45-10:20          Ken Takai, JAMSTEC (Keynote)
                                  Realistic Limits of Biosphere and Habitability under Deep Ocean
10:20-10:45        David Wang, MIT
 Application of Methane Clumped Isotopologue Measurements for Tracing the Subsurface History of Hydrocarbon Gases
10:45-11:10        Yohey Suzuki, University of Tokyo
                                  Deep Life in the Crustal Biosphere: Novel Insights from Recent Drilling Projects
Session 2: Reservoirs and Fluxes
11:10-11:25        Marie Edmonds, University of Cambridge
                                  Introduction to the Reservoirs and Fluxes Community
11:25-12:00        Hiroshi Shinohara, AIST (Keynote)
                                  Volcanic gas flux from subduction zone volcanoes
12:00-1:30          Lunch
Session 2: Reservoirs and Fluxes (continued)
1:30-1:55            Takanori Kagoshima, AORI University of Tokyo
Geochemical cycles of carbon and sulfur constrained by the mantle helium-3 flux
1:55-2:20            Takeshi Ohba, Tokai University
       CO2/H2O ratio increase along the unrest of volcanic activity at Mt Hakone in 2015: Implication to the compression of magma chamber.
2:20-2:45            Junichiro Ishibashi, Kyushu University
                       Carbon flux related to submarine volcanic and hydrothermal activities
2:45-3:15            Coffee Break
Session 3: Extreme Physics and Chemistry
3:15-3:30            Craig Manning, UCLA
                                  Introduction to the Extreme Physics and Chemistry Community
3:30-4:05            Toshiaki Iitaka, RIKEN (Keynote)
                                  Extreme Materials Science with Post-K Computer
4:05-4:30            Koichi Mimura, Nagoya University
                                  Shock Compression of Organic Matters
4:30-4:55            Hiroaki Ohfuji, GRC Ehime University
 Experimental Study on the Graphite-Diamond Transformation and Its Implication for the Formation Mechanism of Natural Impact Diamonds
4:55-5:30            DCO Executive Committee
 Discussion with symposium participants                  
                           Craig Schiffries, Carnegie Institution of Washington
                                  Closing Remarks from the DCO


The DCO Symposium took place in 5F Room 502 at the Pacifico Yokohama Conference Center. The venue is centrally located in the port city of Yokohama, and easily accessible by multiple forms of public transportation. Many hotels, restaurants, and shops are within walking distance from the venue.
  • 3-minute walk from Minato Mirai Station (Minato Mirai Line)
  • 12-minute walk or 5 minutes by taxi from Sakuragicho Station (JR or Subway)
  • 7 minutes by taxi from Yokohama Station

Venue images and map courtesy of Pacifico Yokohama.