As part of the Third International Conference on Crystallogenesis and Mineralogy in Novosibirsk, Russia, from 27 September to 1 October 2013, The Deep Carbon Observatory co-sponsored a symposium, "Deep Carbon Cycle: Mineralogy and Crystal Chemistry of Carbon-bearing Compounds". The conference had over a dozen co-sponsors and was hosted by the V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences (SB-RAS). Located near the famed Siberian kimberlites discovered by Vladimir S. Sobolev, Novosibirsk was a fitting location for the symposium and conference. According to Nick Sobolev, one of the conference organizers, more than 130 scientists from 13 countries participated.
The Deep Carbon Cycle symposium focused on carbon in magmatic and metamorphic processes; ultrahigh pressure metamorphic (UHPM) rocks; kimberlites, diamonds, and their inclusions; and experimental modeling of the deep carbon cycle and carbon in Earth and planetary interiors. The symposium was a key part of the larger conference, which provided a forum for international scientists to discuss recent research and development activities in crystallogenesis and mineralogy. Specific conference topics included the formation of crystal structures (ideal and real), methods of crystal growth, high-pressure research related to mineralogy and crystal formation, and extraterrestrial mineralogy and crystallogenesis.
The DCO symposium included 24 oral presentations and 9 poster presentations, with sessions co-chaired by Dr.s Yingwei Fei, Alexander Sokol, Eiji Ohtani, Anna Dymshits, Dimitry Zedgenizov, and Hiroyuki Kagi.
“The discussion was stimulating, especially hearing different perspectives from experts in high-pressure experiments and field geology,” said session co-chair and DCO Reservoirs and Fluxes Scientific Steering Committee member Yingwei Fei (Carnegie Institution of Washington, USA).
DCO Executive Committee members Nick Sobolev (SB-RAS) and Eiji Ohtani (Tohoku University, Japan) gave plenary presentations during the conference. Dr. Sobolev presented an opening talk in memory of his father Vladimir S. Sobolev, as well as a plenary talk, titled “Complex zoning of olivine macrocrysts from Udachnaya ultrafresh kimberlites: Links to kimberlite formation and evolution.” Dr. Ohtani presented on “Phase relations and physical properties of iron alloys at high pressure: Approach to the Earth’s core.” In addition, Yingwei Fei addressed “Carbon at high-pressure: Solubility and melting in the Fe-C system and diamond synthesis.” Diamond expert Larry Taylor (University of Tennessee), who has participated in other DCO-workshops, also presented a plenary talk titled, “Chelyabinsk meteorite: Recent events similar to the Tunguska event.”
Further plenary presentations, not formally part of the symposium but directly related to deep carbon science, included talks by Dr. Hans-Peter Schertl (“Cathodoluminescence microscopy of the Kokchetav UHP rocks: what we can learn from diamond, carbon-hosting minerals and silicates?”) and Dr. Ross Angel (“Were do diamonds grow? A crystallographic approach”). Overall, six of thirteen plenary talks were related to the DCO symposium.
The conference allowed key scientists and an abundance of experts in natural diamond formation to gather and interact to advance scientific cooperation and understanding. Participants included high-pressure science experts, many of whom are part of the Russian Mega-Grant recently funded by the Russian Ministry of Education and Science to establish a new laboratory for high-pressure research at Novosibirsk. Selected papers presented at the DCO symposium, and related papers from plenary sessions, will be published in a special issue of Russian Geology and Geophysics (tentatively titled “Crystallogenesis and Mineralogy: A link to the deep carbon cycle”) early in 2015. Guest editors of this special issue include Dr.s Nick Sobolev, Nick Dobretsov, Hans-Peter Schertl, Yuri Palyanov.