Dr. Motoo Ito
Visiting Scientist
Lunar and Planetary Institute
ito@lpi.usra.edu
JSC residence: Bldg 31, MC/KR, Room Number 128

Publications

Papers Published in Refereed Journals

  1. Ito M. and Messenger S. (2010) Thermal metamorphic history of a Ca, Al-rich inclusion constrained by high spatial resolution Mg isotopic measurements with NanoSIMS 50L. Meteoritics & Planetary Science, In Press.
  2. Zhang X., Ganguly J., and Ito M. (2010) Ca-Mg Diffusion in Diopside: tracer and chemical inter-diffusion coefficients. Contributions to Mineralogy and Petrology 159, 175-186.
  3. Ito M. and Messenger S. (2008) Isotopic imaging of refractory inclusions in meteorites with the NanoSIMS 50L. Applied Surface Science 255, 1446-1450.
  4. Matrajt G., Ito M., Wirick S., Messenger S., Brownlee D., Joswiak D., Flynn G., Sandford S., Snead C., and Westphal A. (2008) Carbon investigation of two Stardust particles: A TEM, NanoSIMS and XANES study. Meteoritics and Planetary Science 43, 1-43.
  5. Ito M. and Messenger S. (2007) Isotopic imaging of the STARDUST mission samples with NanoSIMS 50L. Yu-Sei-Jin (in Japanese), Vol.16.No.4, 308-315.
  6. Ganguly J., Ito M., and Zhang X. (2007) Cr Diffusion in Orthopyroxene: Experimental Determination, 53Mn-53Cr Thermochronology, and Planetary Applications. Geochimica et Cosmochimica Acta 71, 3915-3925.
  7. McKeegan K.D, Aléon J., Bradley J., Brownlee D., Busemann H., Butterworth A., Chaussidon M., Fallon S., Floss C., Gilmour J., Gounelle M., Graham G., Guan Y., Heck P.R., Hoppe P., Hutcheon I.D., Huth J., Ishii H., Ito M., Jacobsen S.B., Kearsley A., Leshin L.A., Liu M-C., Lyon I., Marhas K., Marty B., Matrajt G., Meibom A., Messenger S., Mostefaoui S., Mukhopadhyay S., Messenger K.N., Nittler L., Palma R., Pepin R.O., Papanastassiou D.A., Robert F., Schlutter D., Snead C.J., Stadermann F.J., Stroud R., Tsou P., Westphal A., Young E.D., Ziegler K., Zimmermann L., and Zinner E. (2006) Isotopic compositions of cometary matter returned by STARDUST. Science 314, 1724-1728.
  8. Brownlee D., and the Stardust Preliminary Examination Team. (2006) Impact Features on Stardust: Implications for Comet 81P/Wild 2 Dust. Science 314, 1711-1716.
  9. Ito M., Yurimoto H., and Nagasawa H. (2006) A study of Mg and K isotopes in Allende CAIs: Implications to the time scale for the multiple heating processes. Meteoritics and Planetary Science 41, 1871-1882.
  10. Ito M. and Morioka M. (2006) Growth of pure diopside (CaMgSi2O6) single crystal by Czochralski technique. Geochemical Journal 40, 625-629.
  11. Ito M. and Ganguly J. (2006) Diffusion Kinetics of Cr in olivine and 53Mn-53Cr thermo-chronology of early solar system objects. Geochimica et Cosmochimica Acta 70, 799-809.
  12. Ito M. and Ganguly J. (2004) Potassium diffusion in melilite: Experimental studies and constraints on the thermal history and size of planetesimals hosting CAIs. Meteoritics and Planetary Science 39, 1911-1920.
  13. Ito M., Yurimoto H., and Nagasawa H. (2004) Oxygen isotopic SIMS analysis in Allende CAI: Details of the very early thermal history of the solar system. Geochimica et Cosmochimica Acta 68, 2905-2923
  14. Nagasawa H., Suzuki T., Ito M. and Morioka M. (2001) Diffusion in single crystal of melilite: Interdiffusion of Al+Al vs. Mg+Si. Physics and Chemistry of Minerals 28, 706-710.
  15. Ito M. and Yurimoto H. (2000) Isotopography – Frontier of Cosmo- and Geochemistry Developed by SIMS –. Chigaku Zasshi, 109, No.6, 836-844.
  16. Ito M., Yurimoto H., Morioka M., and Nagasawa H. (1999) Co2+ and Ni2+ diffusion in olivine by Secondary ion mass spectrometry. Physics and Chemistry of Minerals 26, 425-431.
  17. Yurimoto H., Ito M., and Nagasawa H. (1998) Oxygen isotope exchange between refractory inclusion in Allende and solar nebula gas. Science 282,1874-1877.
  18. Ueno M., Nakamura J., Nakamura M., Utida S., Ito M., Yomura T., and Horiuti T. (1994) The Surface Rheological Properties of Protein-Free Synthetic Lung Surfactants. J. Jpn. Med. Soc. Biol. Interface. 25, 31-36.

Published Proceedings

  1. Ito M., Messenger S., Keller L.P., and Nakamura-Messenger K. (2010) Fe-Ni systematics in Fe-rich olivine and enstatite chondrules in Semarkona chondrite utilizing a NanoSIMS 50L ion microprobe. Lunar and Planetary Science 41, Abstract #1724.
  2. Ito M., Messenger S., Keller L.P., Rahman Z.U., Ross D.K., and Nakamura-Messenger K. (2010) FIB-NanoSIMS-TEM coordinated study of a Wark-Lovering rim in a Vigarano Type A CAI. Lunar and Planetary Science 41, Abstract #xxxx.
  3. Herrin J.S., Ito M., Zolensky M.E., Mittlefehldt D.M., Jenniskens P.M., and Shaddad M.H. (2010) Thermal history and fragmentation of Ureilitic asteroids; Insights from the Almahata Sitta fall. Lunar and Planetary Science 41, Abstract #1095.
  4. Nakamura-Messenger K., Messenger S., Ito M., Keller L.P., Clemett S.J., Jones J.H., Palma R.L., Pepin R.O., Klöck W., Zolensky M.E., and Tatsuoka H. (2010) Si isotopes of Brownleeite. Lunar and Planetary Science 41, Abstract #1900.
  5. Ross D.K., Ito M., Rao M.N., Hervig R., Williams L.B., Nyquist L.E., and Peslier A. (2010) Jarosite in the Shergottite QUE 94201. Lunar and Planetary Science 41, Abstract #1154.
  6. Jogo K., Nakamura T., Ito M., and Messenger S. (2010) Mn-Cr systematics of secondary fayalites in the CV3 carbonaceous chondrites A-881317, MET00430 AND MET01074. Lunar and Planetary Science 41, Abstract #1573.
  7. Nguyen A.N., Messenger S., Ito M., and Rahman Z. (2010) Mg isotopic measurement of FIB-isolated presolar silicate grains. Lunar and Planetary Science 41, Abstract #2413.
  8. Matrajt G., Messenger S., Ito M., Wirick S., Flynn G., Joswiak D.J., and Brownlee D.E. (2010) TEM, XANES and NanoSIMS characterization of carbonaceous phases from individual STARDUST and IDP particles. Lunar and Planetary Science 41, Abstract #1564.
  9. Joswiak D.J., Brownlee D.E., Matrajt G., Messenger S, and Ito M. (2010) Stardust Track 130 Terminal Particle: Possible Al-rich Chondrule Fragment or Altered Amoeboid Olivine Aggregate. Lunar and Planetary Science 41, Abstract #2119.
  10. Herrin J.S., Le L., Zolensky M.E., Ito M., Jenniskens P., and Shaddad M.H. (2009) Late reduction textures in Almahata Sitta Ureilite. 41st annual meeting of the Division for Planetary Sciences of the American Astronomical Society, submitted.
  11. Ito M. and Messenger S. (2009) Rare earth element measurements of melilite and fassaite in Allende CAI by NanoSIMS. Meteoritics and Planetary Science, A97.
  12. Herrin J.S., Zolensky M.E., Ito M., Jenniskens P., and Shaddad M.H. (2009) Fossilized smelting; Reduction textures in Almahata Sitta Ureilite. Meteoritics and Planetary Science, A89.
  13. Ito M. and Messenger S. (2009) High precision Magnesium isotopic measurement of CAI minerals with low Al-Mg ratio from Allende utilizing a NanoSIMS 50L ion microprobe. Lunar and Planetary Science 40,Abstract #1740.
  14. Ito M. and Ganguly J. (2009) Mg diffusion in minerals in CAIs: New experimental data for melilites and implications for the Al-Mg chronometer and thermal history of CAIs. Lunar and Planetary Science 40, Abstract #1753.
  15. Messenger S., D. Joswiak, Ito M., Matrajt G., and Brownlee D.E. (2009) Discovery of Presolar SiC from Comet WILD-2. Lunar and Planetary Science 40, Abstract #1790.
  16. Brownlee D.E., Joswiak D., Matrajt G., Messenger S., and Ito M. (2009) Silicon Carbide in Comet Wild 2 and the Abundance of Pre-Solar Grains in the Kuiper Belt. Lunar and Planetary Science 40, Abstract #2195.
  17. Ito M., and Messenger S. (2008) O isotope mapping of a Wark-Lovering rim in a type A CAI: Constraints on its formation process. Meteoritics and Planetary Science 43, A65.
  18. Messenger S., Ito M., Joswiak D.J., Keller L.P., Stroud R., Nakamura-Messenger K., Matrajt G., and Brownlee D.E. (2008) Oxygen isotopic compositions of WILD 2 silicates. Meteoritics and Planetary Science 43, A97.
  19. Jogo K., Nakamura T., Messenger S., Ito M., and Miyamoto T. (2008) Mn-Cr systematics of secondary fayalite in the Y-86009 CV3 carbonaceous chondrite. Meteoritics and Planetary Science 43, A66.
  20. Matrajt G., Messenger S., Ito M., Joswiak D.J., and Brownlee D.E. (2008) Study of the C-rich phases of two cometary particles with electron microscopy and nanoSIMS. Goldschmidt Conference 2008, A603.
  21. Ito M., and Messenger S. (2008) Magnesium Isotope Imaging of Anorthite from Allende CAI with the NanoSIMS 50L Ion Microprobe. Lunar and Planetary Science 39, Abstract #2031.
  22. Zhang X. Y., Ganguly J., and Ito M. (2008) Self Diffusivities of Ca and Mg in Clinopyroxene: Experimental Studies and Planetary Applications. Lunar and Planetary Science 39, Abstract #2049.
  23. Ito M., and Messenger S. (2007) Thermal metamorphic history of a CAI constrained by high spatial resolution O and Mg isotopic measurements. The Chronology of Meteorites and the Early Solar System, Abstract #4040.
  24. Ito M., and Messenger S. (2007) Isotopic imaging of refractory inclusions in meteorites with the NanoSIMS 50L. SIMS XVI, Abstract #1023.
  25. Messenger S., Nakamura-Messenger K., Keller L., Matrajt G., and Ito M. (2007) Submicrometer Organic Grains: Widespread Constituents of the Early Solar System. Goldschmidt 2007 A657.
  26. Ito M., and Messenger S. (2007) Heterogeneous 26Mg Microdistributions in A Type A CAI: Constraints in its formation process and chronology. Meteoritics and Planetary Science 42, A74.
  27. Ganguly J., Ito M., and Zhang X Y. (2007) 53Mn-53Cr decay system: Diffusion kinetics in Pyroxenes and Thermochronology of early solar system processes in meteorite. Meteoritics and Planetary Science 42, A53.
  28. Matrajt G, Wirick S., Messenger S., Ito M., Joswiak D., and Brownlee D. (2007) A TEM, C-XANES AND NanoSIMS Investigation of the STARDUST particle ADA (Fragment #2 of track #26). Meteoritics and Planetary Science 42, A99.
  29. Ito M., and Messenger S. (2007) Isotopic measurements in CAIs with the NanoSIMS: Implications to the understanding of the formation process of Ca, Al-rich Inclusions. Lunar and Planetary Science 38, Abstract #1794.
  30. Messenger S., Keller L., Nakamura-Messenger K., and Ito M. (2007) The abundance and distribution of presolar materials in cluster IDPs. Lunar and Planetary Science 38, Abstract #2122.
  31. Ganguly J., Ito M., and Zhang X. Y. (2007) Closure temperatures of Mn-Cr and Pb-Pb decay systems in Pyroxenes: Implications for ages of cumulate eucrite and angrite. Lunar and Planetary Science 38, Abstract #1212.
  32. Matrajt G., Wirick S., Ito M., Messenger S., Brownlee D., and Joswiak D. (2007) Carbon Investigation of Stardust Particles: A TEM, NanoSIMS and XANES Study. Lunar and Planetary Science 38, Abstract #1201.
  33. McKeegan K., Aleon J., Alexander C., Bradley J., Brownlee D., Burnard P., Butterworth A., Chaussidon M., Davis A., Floss C., Gilmour J., Guan Y., Hohenberg C., Hoppe P., Hutcheon I., Ito M., Jacobsen S., Leshin L., Lyon I., Marhas K., Marty B., Meibom A., Meshik A., Messenger S., Nakamura K., Nittler L., Palma R., Pellin M., Pepin R., Tsou P., Robert F., Schlutter D., Stadermann F., Stroud R., Westpha A., Young E., Ziegler K., and Zinner E. (2006) Isotopic compositions of cometary matter returned by the STARDUST mission. Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract P52B-03.
  34. Zhang X. Y., Ganguly J., Ito M., and Hervig R L. (2006) Calcium and Magnesium Self-Diffusion in Natural Diopside Single Crystals. Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstract V33A-0634.
  35. McKeegan K., Aleon J., Alexander C., Bradley J., Brownlee D., Burnard P., Butterworth A., Chaussidon M., Davis A., Floss C., Gilmour J., Guan Y., Hohenberg C., Hoppe P., Hutcheon I., Ito M., Jacobsen S., Leshin L., Lyon I., Marhas K., Marty B., Meibom A., Meshik A., Messenger S., Nakamura K., Nittler L., Palma R., Pellin M., Pepin R., Tsou P., Robert F., Schlutter D., Stadermann F., Stroud R., Westpha A., Young E., Ziegler K., and Zinner E. (2006) Isotopic compositions of cometary matter returned by the STARDUST MISSION. (2006) Meteoritics and Planetary Science 41, A119.
  36. Ganguly J., Ito M., and Zhang X Y. (2006) Mn-Cr Thermochronology of early solar system processes. Lunar and Planetary Science 37, Abstract #1339.
  37. Ito M. and Ganguly J. (2005) Closure temperatures of the short-lived decay systems, Be-B in melilite and Al-Mg in anorthite: Implications for the chronology of CAIs and early solar system events. Lunar and Planetary Science 36, Abstract #1552.
  38. Ito M., Ganguly J., and Stimpfl M. (2004) Diffusion Kinetics of Cr in olivine and 53Mn-53Cr thermo-chronology of early solar system objects. Lunar and Planetary Science 35, Abstract #1324.
  39. Ito M. and Ganguly J. (2003) Diffusion kinetics of K in melilite and diopside: Constrains on the accretion time scale and thermal history of CAI parent body. Meteoritics and Planetary Science 38, A74.
  40. Ito M. and Ganguly J. (2002) Potassium diffusion in melilite: Experimental determination and Application to the cooling rates of the CAIs. Lunar and Planetary Science 33, Abstract #1568.
  41. Ito M., Nagasawa H., and Yurimoto H. (2001) 25Mg diffusion in åkermanite, gehlenite and Åk30Geh70 solid solution. Lunar and Planetary Science 32, Abstract #1518.
  42. Ito M., Nagasawa H., and Yurimoto H. (2000) Micro-analysis of O isotopic distributions in A Type-C CAI, EK1-04-2 from Allende meteorite. Meteoritics and Planetary Science 35, A81.
  43. Ito M., Yurimoto H., and Nagasawa H. (2000) A study of Mg and K isotopes in Allende CAIs: Implication to the time scale for the multiple heating processes. Lunar and Planetary Sciences 31, Abstract #1600.
  44. Ito M., Yurimoto H., and Nagasawa H. (1999) Oxygen isotope micro-distribution vs. composition in melilite/fassaite in the Allende CAI 7R-19-1: a new evidence for multiple heating. Lunar and Planetary Sciences 30, Abstract #1538.
  45. Nagasawa H., Suzuki T., Ito M., and Morioka M. (1999) Inter-diffusion in Melilite: Determination of Al+Al vs. Ms+Si inter-diffusivities. Lunar and Planetary Sciences 30, Abstract #1530.
  46. Ito M., Yurimoto H., and Nagasawa H. (1998) Oxygen-isotopic microanalysis of calcium-aluminum-rich inclusions in the Allende meteorite: interminaral and intramineral distribution. Meteoritics and Planetary Science 33, A74-A75.
  47. Ito M., Yurimoto H., and Nagasawa H. (1998) Oxygen isotope micro-analysis of CAI by secondary ion mass spectrometry. Antarctic Meteorites XXIII, 39-41.
  48. Ito M., Yurimoto H., and Nagasawa H. (1998) Oxygen Isotope Microanalysis of CAI by SIMS; an Evidence for Isotopically Anomalous Melilite. Lunar and Planetary Science 29, Abstract #1556.
  49. Ito M., Yurimoto H., Morioka M., and Nagasawa H. (1997) REE diffusivities in melilite: A preliminary study by SIMS-depth profile method. Lunar and Planetary Science 28, 627-628.

Non-Refereed Articles

  1. Ito M. and Messenger S. (2010) Rare earth element measurements of melilite and fassaite in Allende CAI, 7R-19-1, by NanoSIMS. Japan Geoscience Union Meeting 2010, PPS009-17.
  2. Messenger S., Keller L.P., Ito M., and Nakamura-Messenger K. (2010) Diverse origins of cometary materials. Japan Geoscience Union Meeting 2010, PPS006-07.
  3. Ito M. and Messenger S. (2009) High precision Mg isotopic measurement of CAI minerals with low Al/Mg ratio utilizing NanoSIMS 50L: Implications to thermal history of CAIs. Annual Meeting of the Geochemical Society of Japan, Japan.
  4. Jogo K., Nakamura T., Ito M., and Messenger S. (2008) Mn-Cr systematics of secondary fayalite in the Y-86009 CV3 carbonaceous chondrite. The 2008 Annual Meeting of Japan Association of Mineralogical Sciences, R9-10.
  5. Ito M. and Messenger S. (2007) Isotopic imaging of refractory inclusions in meteorites with the NanoSIMS 50L. Meeting of Isotope-ratio Mass Spectrometry 2007, Hokkaido.
  6. Ito M. and Messenger S. (2007) Isotopic measurements of the Wild2 cometary dust. Japan Geoscience Union Meeting 2007 (INVITED), P223-007.
  7. Ganguly J., Ito M., and Zhang X. (2006) A diffusion study of Cr in Enstatite: Implications to Mn-Cr Thermochronology of early solar system processes. Annual Meeting of the Geochemical Society of Japan, p 45.
  8. Ito M. and Morioka M. (2005) Growth of pure diopside (CaMgSi2O6) single crystal by Czochralski method. Annual Meeting of the Geochemical Society of Japan, p 247.
  9. Ito M. and Ganguly J. (2005) Diffusion Kinetics of Cr in olivine and 53Mn-53Cr thermo-chronology of early solar system objects. Fall meeting of the Japanese Society for Planetary Sciences, p 144.
  10. Ito M. and Ganguly J. (2004) K diffusion in melilite: Constraints on the thermal history and size of the planetesimals hosting CAIs. Annual Meeting of the Geochemical Society of Japan, p274.
  11. Ito M. and Ganguly J. (2001) K and Ca diffusion in melilite: diffusive effect for 41Ca-41K system in CAIs. Annual Meeting of the Geochemical Society of Japan, p67.
  12. Harazono K., Ito M., and Yurimoto H. (2001) Formation process of Fluffy Type A CAI. Annual Meeting of the Geochemical Society of Japan, p58.
  13. Ito M., Nagasawa H., and Yurimoto H. (2000) O isotopic distributions in Type-C CAI from Allende meteorite. Annual Meeting of the Geochemical Society of Japan, p220.
  14. Ito M., Yurimoto H., and Nagasawa H. (1999) A study of Mg and K isotopes in Allende CAI using high mass resolution technique by SIMS. Annual Meeting of the Geochemical Society of Japan, p225.
  15. Nagasawa H., Morioka M., and Ito M. (1999) Diffusivities of elements and isotopes in melilite: Implications to the formation process of CAI. Annual Meeting of the Geochemical Society of Japan, p5-6.
  16. Ito M., Yurimoto H., and Nagasawa H. (1999) O and Mg isotopes studies in Allende CAI by SIMS: implication to the time scale of the formation process of early solar system. Annual Meeting of the Geochemical Society of Japan, p18-19.
  17. Nagasawa H., Suzuki T., Ito M., and Morioka M. (1999) Al-Al vs. Mg-Si inter-diffusion in the melilite system, Ca2Al2SiO7-Ca2MgSi2O7. Annual Meeting of the Geochemical Society of Japan, p224.
  18. Ito M., Yurimoto H., Morioka M., and Nagasawa H. (1997) Cationic diffusion in melilite: II. Determination of REE diffusivities by SIMS. Annual Meeting of the Geochemical Society of Japan, p238.
  19. Ito M., Nagasawa H., and Morioka M. (1997) Cationic diffusion in melilite: III. Diffusional fractionation in the partial melting process. Annual Meeting of the Geochemical Society of Japan, p239.
  20. Ito M., Yurimoto H., Morioka M., and Nagasawa H. (1996) Determination of cation diffusion in olivine using SIMS technique -II-. Annual Meeting of the Geochemical Society of Japan, p179.
  21. Ito M., Yurimoto H., Morioka M., and Nagasawa H. (1995) Determination of cation diffusion in olivine using SIMS technique. Annual Meeting of the Geochemical Society of Japan, p312.
  22. Tachi T., Horiuchi H., Nagasawa H., and Ito M. (1995) Cu(II) in orthopyroxene-Synthesis and structure determination by X-ray. Annual Meeting of the Geochemical Society of Japan, p313.

 

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Last updated
May 7, 2010