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Conference Abstracts

2006

S. Utsunomiya, “Migration of trace elements via nanoscale process” 19th General Meeting of International Mineralogical Association, July 23-28, 2006, Kobe JAPAN. Invited Talk

A. Deditius, S. Utsunomiya, R. C. Ewing, “Alteration of UO₂ under oxidizing conditions”. 2006 Plutonium Future, July 9-13, 2006, Pacific Grove, California, USA.

D. Renock, U. Becker, S. Utsunomiya, and R. C. Ewing, "STEM and electrochemical SFM characterization of As-containing nanoscale phases on iron sulfides". The 231st ACS National Meeting, March 26-30, 2006, Atlanta, GA,

M. Reich, S. Utsunomiya, U. Becker, R. C. Ewing, L. M. Wang, "Nanoparticle-host interaction in the solid state: temperature-induced dissolution and growth of natural gold nanoparticles in arsenian pyrite", NanoPEPS Workshop, January 11-13, 2006, Albuquerque, New Mexico, USA.

S. Utsunomiya, R. C. Ewing, "Nanoscale occurrence of trace metals revealed by Z-contrast STEM Imaging" NanoPEPS Workshop, January 11-13, 2006, Albuquerque, New Mexico, USA.

2005

R. Chintalapalle, S. Utsunomiya, C. Julien and U. Becker, "Investigation of Temperature Induced Structural Transformations in Tungsten Oxide (WO₃) Thin Films", 208th Meeting of The Electrochemical Society, October 16-21, 2005, Los Angels, USA.

S. L. Delattre, S. Utsunomiya, R. C. Ewing, E. Balan, "Radiation-damage enhanced chemical alteration of zircon in laterite, Nsimi, Cameroon." Annual Meeting of Geological Society of America, October 16-19, 2005, Salt Lake City, USA.

S. Utsunomiya, R. C. Ewing, "The effect of ionizing radiation on U⁶⁺ phases" Annual Meeting of Geological Society of America, October 16-19, 2005, Salt Lake City, USA.

St. N. Kalmykov, A. P. Novikov, R. C. Ewing, S. Utsunomiya, "Effect of colloids on radionuclide migration in oxic and anoxic conditions". Migration 2005, September 18-23, 2005, Avignon, France.

T. Arnold, S. Utsunomiya, G. Geipel, R. C. Ewing, N. Baumann, V. Brendler, "Identification of adsorbed U(VI) surface species on muscovite by TRLFS and HAADF-STEM". Migration 2005, September 18-23, 2005, Avignon, France.

S. Utsunomiya, R. C. Ewing, "Fate of the epsilon phase in the Oklo natural reactors". Migration 2005, September 18-23, 2005, Avignon, France.

S. Utsunomiya, R. C. Ewing, "Radiation-induced decomposition of U6+ alteration phases of UO2". 29th International Symposium on the Scientific Basis for Radioactive Waste management, September 12-16, 2005, Ghent, Belgium.  

M. Reich, S. Utsunomiya, U. Becker, L. Wang, R. C. Ewing, "In situ observation of thermodynamic size effects on melting of natural gold nanoparticles"15th Annual V.M. Goldschmidt Conference, May 20-25, 2005, Moscow, Idaho.

S. Utsunomiya, "Identification of trace metal speciation in environment using Z-contrast imaging"15th Annual V.M. Goldschmidt Conference, May 20-25, 2005, Moscow, Idaho. Invited Talk

S. Utsunomiya, R. C. Ewing, "The epsilon phase in the UO₂ of the Oklo Natural Reactors" 15th Annual V.M. Goldschmidt Conference, May 20-25, 2005, Moscow, Idaho.

M. Fayek, S. Utsunomiya, R. C. Ewing, A. Simmons, "Natural uranium getters in near surface environments at the Nopal I Deposit Pena Blanca, Mexico"15th Annual V.M. Goldschmidt Conference, May 20-25, 2005, Moscow, Idaho. Invited Talk

2004

S. Utsunomiya, J. W. Valley, R. C. Ewing, A. Cavosie, S. A. Wilde, "Radiation damage in zircon from a Jack Hills granitoid, Western Australia" Annual Meeting of Geological Society of America, November 7-10, 2004, Colorado, USA.

L. L. Skovbjerg , S. L. S. Stipp , S. Utsunomiya and R. C. Ewing, "Cr(VI) reduction by green rust" 14th Annual V.M. Goldschmidt Conference, June 5-11, 2004, Copenhagen, Denmark.

T. Murakami, M. Sato, S. Utsunomiya, T. Kasama and B. Sreenivas, "Behavior of light REE in Precambrian paleosols: Implication for atmospheric oxygen evolution" 14th Annual V.M. Goldschmidt Conference, June 5-11, 2004, Copenhagen, Denmark.

S. Utsunomiya, L. M. Wang, R. C. Ewing, S. B. Clark and M. Douglas, "The effect of ionizing radiation on uranophane" 2004 Spent Fuel Workshop, April 19-20, 2004, Lake Forest, Illinois, USA

S. Utsunomiya and R. C. Ewing, "Nanocrystals and Nanodomains of trace elements in geologic materials" Frontiers in Nanoscience and Nanotechnology: A Symposium, November 14-15, 2003, Ann Arbor, Michigan, USA.

K. A. Jensen, S. Utsunomiya, M. Glasius, P. Wåhlin, F. Palmgren, N. Ø. Olesend, S. Grundvig and R.C. Ewing, "Nano- and micro-mineralogy of airborne trace metals in the city background and a high-traffic street in Copenhagen (Denmark)". The 26th Nordic Geological Winter Meeting, January 6-9, 2004 Uppsala, Sweden

2003

M. Douglas, S. B. Clark, J. I. Friese, B. W. Arey, E. C. Buck, B. D. Hanson, S. Utsunomiya and R. C. Ewing, "Neptunium association with uranium(VI) silicate solid phases" 9th International Conference on Chemistry and Migration Behavior of Actinides and Fission Products Products in the Geosphere (MIGRATION '03). September 21-26, 2003, Gyeongju, South Korea.

F. Skomurski, S. Utsunomiya, and R. C. Ewing, "Role of vein phases in immobilizing uranium and lead released from altered betafite" Annual Meeting of Geological Society of America, November 2-5, 2003, Seatle, USA.

M. Reich, C. S. Palenik, S. Utsunomiya, U. Becker, L. Stixrude, S. E. Kesler, R. C.  Ewing "Solubility limit of gold in arsenian pyrite from Carlin-type and epithermal deposits: EMPA, SIMS, HRTEM and quantum-mechanical costraints", Annual Meeting of Geological Society of America, November 2-5, 2003, Seatle, USA.

M. Fayek, S. Utsunomiya, R. C. Ewing and L. Riciputi, "Nano- and Micro-scale alteration of uraninite at the Oklo-Okelobondo natural fission reactors, Gabon" Annual Meeting of Geological Society of America, November 2-5, 2003, Seatle, USA.

S. Utsunomiya, C. S. Palenik, J. W. Valley, A. J. Cavosie, S. A. Wilde and R. C. Ewing, "Fate of Pb in an Archean zircon" Annual Meeting of Geological Society of America, November 2-5, 2003, Seatle, USA.

K. A. Jensen, S. Utsunomiya, M. Glasius, F. Palmgren and R. C. Ewing "Identity of transition and heavy metal nanoparticles in the urban outdoor and indoor atmosphere: Implications for health effect assessments", The Seventh Nordic Conference on Toxicology and Environmental Mutagenesis, June 15-18 2003, Bornholm, Denmark. Abstract was published in Pharmacology and Toxicology, 93, Supplement I, p. 41-42

T. Murakami, S. Utsunomiya, T. Yokoyama, and T. Kasama, "Biotite dissolution processes and mechanisms: Early stage weathering environment" 13th Annual V.M. Goldschmidt Conference, September 7-12, 2003, Kurashiki, Japan. Abstract was published in Geochimica et Cosmochimica Acta, 67, 18(S1), A314.

K. A. Traexler, S. Utsunomiya, A. Kersting, and R. C. Ewing, “Modeling colloid transport of radionuclides: Where are the data gaps for the Yucca mountain performance assessment” Scientific Basis for Radioactive Waste management XXVII, June 15-18, 2003, Kalmer, Sweden.  

S. Utsunomiya and R. C. Ewing, "Application of high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM) to trace element nanogeoscience" Spring meeting of Michigan Microbeam and Microanalysis, April 25, 2003, Ann Arbor, MI, USA

S. Utsunomiya, K. A. Traexler, L. M. Wang, and R. C. Ewing, “Nano-scale heavy metal phases on atmospheric and groundwater colloids” 225^th American Chemical Society Meeting, March 23-27, 2003, New Orleans, LA, USA.  Invited Talk

M. Douglas, S. B. Clark, S. Utsunomiya, and R. C. Ewing, “Microscopy studies of cation incorporation into uranium (VI) solid phases” 225^th American Chemical Society Meeting, March 23-27, 2003, New Orleans, LA, USA.

2002

S. Nakao, S. Utsunomiya, K. Sun, L. M. Wang, Y. Miyagawa, and S. Miyagawa, "Microstructure of high-energy Zn implanted silica glasses" 17th International Conference on the Application of Accelerators in Research and Industry, CAARI 2002, November 12-16, 2002, Denton, Texas, USA.

S. Utsunomiya, K. A. Jensen, G. J. Keeler, and R. C. Ewing, "Uraninite Nanocrystals and Fullerene in Atmospheric Particulates" Annual Meeting of Geological Society of America, October 27-30, 2002, Denver, USA.

C. S. Palenik, S. Utsunomiya, S. E. Kesler, and R. C. Ewing, "Gold Nanoparticles in Arsenian Pyrite from Carlin-type Deposit Observed by HR-TEM" Annual Meeting of Geological Society of America, October 27-30, 2002, Denver, USA.

T. Murakami, J. Ito, S. Utsunomiya, and T. Kasama, "Biotite Dissolution under anoxic condition: implication for Fe Behavior during Anoxic Weathering" Annual Meeting of Geological Society of America, October 27-30, 2002, Denver, USA. 

S. Utsunomiya and R. C. Ewing, "Application of high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM) and STEM-energy dispersive X-ray spectrometry (EDX) mapping to investigate nano-scale particles in environment", 18th International Mineralogical Association, September 1-6, 2002, Edinburg, Scotland,

T. Murakami, T. Kasama, and S. Utsunomiya, "Reconstruction of 2.5 Ga weathering of Pronto granite" 12th Annual V.M. Goldschmidt Conference, August 18-23, Davos, Switzerland. The abstract was published in Geochimica et Cosmochimica Acta, 66, S1, A537.

S. Utsunomiya and R. C. Ewing, "Elemental Mapping & Redox State of Nano-particles by HAADF-STEM, EFTEM, STEM-EDX and PEELS." 39th Annual Meeting of The Clay Minerals Society, June 8-13, 2002, Boulder, Colorado, USA. 

A. Kersting, L. M. Wang, L. P. You, S. Utsunomiya, P. H. Zhao, and R. C. Ewing, "Characterization of mineral colloids in ground water at the Nevada test site by advanced TEM techniques". Abstracts of papers of the American Chemical Society, 223 (2002): 151-GEOC Part 1 Apr. 7.

2001

M. Douglas, S.B. Clark, S. Utsunomiya, and  R.C. Ewing, "Trace metal incorporation into Uranophane [Ca(UO2)(SiO3OH)2]5H2O", International conference on all aspects of the science and technology of actinides, Nov. 4-9, 2001. 

S.V. Yudintsev, M.I. Lapina, T.S. Yudintseva, S. Utsunomiya, L.M. Wang, and R.C. Ewing, "Isomorphic capacity and radiation stability of the garnet host for actinide waste immobilization", 2001, MRS fall meeting, Symposium JJ, Nov. 26-30.

S. Utsunomiya, L.M. Wang, R.C. Ewing, and S.V. Yudintsev, "Ion irradiation effects in the garnet-based waste form", 2001, MRS fall meeting, Symposium JJ, Nov. 26-30.

S. Utsunomiya, L.M. Wang, R.C. Ewing, and S.V. Yudintsev, "Ion irradiation effects in actinide and rare earth element garnets", 2001, the 11th international conference on radiation effects in insulators, Sept. 3-7.

-2000

S. Utsunomiya and T. Murakami, "Paleo-weathering or hydrothermal alteration? -Geochemistry and oxygen level from Enterprise and Pronto mine paleosols-" 1999 annual meeting, Geological Society of America.

S. Utsunomiya and T.  Murakami, "Experimental study of the alteration process of basaltic glass under high partial pressure of carbon dioxide", 9th Annual V. M. Goldschmidt conference.

S. Utsunomiya, T. Murakami, K. Kitajima, and S. Maruyama, "Temperatures and concentrations of CO2 in fluids during hydrothermal alteration of basalts in the Archean. - The condition of the earth surfaces in the Archean -", 1998 Annual meeting, Geological Society of America.

J. F. Banfield, T. Murakami, S. Utsunomiya, "A new approach to the comparison of Precambrian and modern granite weathering", 1998 Annual meeting, Mineralogical Society of Japan.

T. Murakami and S. Utsunomiya, "Comparison of biotite dissolution in the laboratory and in the field by high-resolution transmission electron microscopy", 8th Annual V. M. Goldschmidt Conference.

S. Utsunomiya, T. Murakami, K. Tsukimura, and H. Kadohara, "Experimental study of anorthite dissolution and its secondary minerals under high partial pressure of carbon dioxide", 7th Annual V. M. Goldschmidt Conference.

S. Utsunomiya, T. Murakami, K. Tsukimura, and H. Kadohara, "New data from an experimental study of feldspar dissolution processes under high partial pressure of carbon dioxide", 1997 Annual meeting, Geological Society of America.