V11C:
The History of a Diamond: Insights from Melts, Fluids, and Mineral Inclusions Posters


Session ID#: 8057

Session Description:
Diamond is one of the oldest and deepest materials discovered on the Earth’s surface. Inclusions in diamonds are the most informative messengers that provide direct information about the processes in the deep mantle. Findings of superdeep diamonds allowed to shed light on the composition of the transition zone and the lower mantle, as well as provided unique information on the oxidation state at these depths that directly links to the deep volatile cycle. Diamond findings in unconventional settings of UHP terrains imposed important questions of continent assemblage and diamond growth environment. This session invites contributions on diamond inclusions, isotope systematics, morphology, and experiments that expand our understanding of diamond origin in the Earth interior, the deep carbon cycle and the phase assemblage in the deep Earth.
Primary Convener:  Dr. Sujoy Ghosh, PhD, Indian Institute of Technology Kharagpur, Department of Geology & Geophysics, Kharagpur, India
Conveners:  Vincenzo Stagno, Geodynamics Research Center, Matsuyama, Japan, Yana Fedortchouk, Dalhousie University, Department of Earth Sciences, Halifax, NS, Canada and Kate Kiseeva, University of Oxford, Oxford, United Kingdom
Chairs:  Dr. Sujoy Ghosh, PhD, Indian Institute of Technology Kharagpur, Department of Geology & Geophysics, Kharagpur, India and Vincenzo Stagno, Geodynamics Research Center, Matsuyama, Japan
OSPA Liaison:  Yana Fedortchouk, Dalhousie University, Department of Earth Sciences, Halifax, NS, Canada

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • MR - Mineral and Rock Physics
Index Terms:

1025 Composition of the mantle [GEOCHEMISTRY]
1043 Fluid and melt inclusion geochemistry [GEOCHEMISTRY]
3613 Subduction zone processes [MINERALOGY AND PETROLOGY]
3924 High-pressure behavior [MINERAL PHYSICS]

Abstracts Submitted to this Session:

Deep Mantle Fluids Bottled Up in Diamonds (Invited) (68175)
Yaakov Weiss, Columbia University of New York, Palisades, NY, United States and Graham Pearson, University of Alberta, Earth & Atmospheric Sciences, Edmonton, AB, Canada
MINERAL AND FLUID INCLUSIONS IN THE DIAMONDS FROM THE URAL PLACERS, RUSSIA (68568)
Nikolai V Sobolev1, Alla M Logvinova1, Ekaterina N Fedorova1, Lyudmila I Luk'yanova2, Richard Wirth3, Anatoly A Tomilenko1, Taras A Bul’bak1, Vadim N Reustsy1 and Emiliya S Efimova1, (1)V.S. Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russia, (2)Karpinsky All-Russian Research Geological Institute, St. Petersburg, Russia, (3)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Fluid control of deeply subducted carbonate rocks and diamond formations by Intraslab UHP metasomatism - Modeling by the Kokchetav Massif (68905)
Yoshihide Ogasawara, Waseda University, Tokyo, Japan and Kunihiko Sakamaki, Waseda University, Department of Earth Sciences, Tokyo, Japan
Metamorphic Diamond Formation under H2O-Fluid Conditions in Diamond-bearing Garnet-Clinopyroxene Rock from the Kokchetav Massif (76605)
Kunihiko Sakamaki1, Yoshihide Ogasawara1 and Hans-Peter Schertl2, (1)Waseda University, Department of Earth Sciences, Tokyo, Japan, (2)Ruhr University Bochum, Bochum, Germany
Kimberlite emplacement record in diamond morphology (80264)
Yana Fedortchouk, Dalhousie University, Department of Earth Sciences, Halifax, NS, Canada and Ingrid Chinn, DeBeers Exploration, Johannesburg, South Africa
H2O content of nominally anhydrous mineral inclusions in diamonds from the Udachnaya kimberlite (Invited) (81960)
Davide Novella, Lawrence Livermore National Laboratory, Livermore, CA, United States, Nathalie Bolfan-Casanova, Laboratoire Magmas et Volcans, Clermont-Ferrand Cedex, France, Fabrizio Nestola, University of Padua, Department of Geosciences, Padua, Italy and Jeffrey William Harris, University of Glasgow, School of Geographical and Earth Sciences, Glasgow, United Kingdom
Nano-inclusions in diamond: Evidence of diamond genesis (60811)
Richard Wirth, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Neoproterozic Re-Os age of a sulfide inclusion in a superdeep diamond: Implications for mantle convection beneath Juina, Brazil (Invited) (60836)
Steven B Shirey1, Karen Smit2, Fabrizio Nestola3, Andrew Steele4, Galina Bulanova5 and Chris B Smith5, (1)Carnegie Science, Earth and Planets Laboratory, Washington, United States, (2)Gemological Institute of America, Carlsbad, CA, United States, (3)University of Padua, Department of Geosciences, Padua, Italy, (4)Carnegie Institution of Washington, Washington, DC, United States, (5)University of Bristol, Earth Sciences, Bristol, United Kingdom
History of crustal recycling recorded in transition zone diamonds (Invited) (61461)
Graham Pearson1, Thomas Stachel1, Mederic Palot1 and Ryan Ben Ickert2, (1)University of Alberta, Earth & Atmospheric Sciences, Edmonton, AB, Canada, (2)Scottish Universities Environmental Research Centre, East Kilbride, United Kingdom

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