Publications

Publications

Manuscripts

Takazawa, E., Okayasu, T. and Satoh, K. (2003) Geochemistry and origin of the basal lherzolites from the northern Oman ophiolite (northern Fizh block). Geochemistry Geophysics Geosystems, 4(2), 1021, doi:10.1029/2001GC000232.
Toramaru, A., Takazawa, E., Morishita, T. and Matsukage, K. (2001) Model of layering formation in a mantle peridotite (Horoman, Hokkaido, Japan). Earth and Planetary Science Letters, 185, 299-313.
Saal, A.E., Takazawa, E., Frey, F.A., Shimizu, N. and Hart, S.R. (2001) Re-Os isotopes in the Horoman Peridotite: evidence for refertilization? Journal of Petrology, 42, 25-37.
Takazawa E., Frey F.A., Shimizu N. and Obata M. (2000) Whole-rock compositional variations in an upper mantle peridotite (Horoman, Hokkaido, Japan): Are they consistent with partial melting hypothesis? Geochimica et Cosmochimica Acta, 64, 695-716.
Takazawa E., Frey F.A., Shimizu N., Saal A. and Obata M. (1999) Polybaric petrogenesis of mafic layers in the Horoman Peridotite Complex, Japan. Journal of Petrology, 40, 1827-1851.
Rehkamper M., Halliday A.N., Alt J., Fitton J.G., Zipfel J. and Takazawa E. (1999) Non-chondritic platimum-group element ratios in abyssal peridotites: petrogenetic signature of melt percolation?. Earth and Planetary Science Letters, 172, 65-81.
Uchino M., Mashimo T., Kodama M., Kobayashi T., Takazawa E., Sekine T., Noguchi Y., Hikosaka H., Fukuoka K., Shono Y., Kondo T. and Yagi T. (1999) Phase transition and EOS of zinc sulfide (ZnS) under shock and static compressions up to 135 GPa. Journal of Physics and Chemistry of Solids, 60, 827-837.
Mashimo, T., Uchino, M., Nakamura, A., Kobayashi, T., Takazawa, E., Sekine, T., Noguchi, Y., Hikosaka, H., Fukuoka, K. and Shono, Y. (1999) Yield properties, phase transition, and equation of state of aluminum nitride (AlN) under shock compression up to 150 GPa. Journal of Applied Physics, 86, 6710-6716.
Zhu Y., Sekine T., Kobayashi T. and Takazawa E. (1998) Shock-induced phase transitions among SiC politypes. Journal of Materials Science, 33, 5883-5890.
Takazawa E., Sekine T., Kobayashi T. and Zhu Y.-Q. (1998) Hugoniot equation of state and high-pressure transformation of jadeite. Journal of Geophysical Research, 103, 12261-12268.
Zhu Y.Q., Sekine T., Kobayashi T., Takazawa E., Terrones M. and Terrones H. (1998) Collapsing carbon nanotubes and diamond formation by shock waves. Chemical Physics Letters, 287, 689-693.
Kobayashi T., Sekine T., Fat'yanov O.V., Takazawa E. and Zhu Q.Y. (1998) Radiation temperatures of soda-lime glass in its shock-compressed liquid state. Journal of Applied Physics, 83, 1711-1716.
Takazawa, E. (1996) Geodynamic Evolution of the Horoman Peridotite, Japan: Geochemical Study of Asthenospheric and Lithospheric Processes. Ph.D. dissertation, Massachusetts Institute of Technology, 562p.
Takazawa E., Frey F. A., Shimizu N. and Obata M. (1996) Evolution of the Horoman Peridotite (Hokkaido, J apan): Implications from pyroxene compositions. Chemical Geology (Special issue: Melt Processes and Exhumation of Garnet, Spinel and Plagioclase Facies Mantle. 2nd Orogenic Lherzolites Conference, Granada), 134, 3-26.
Navon O., Frey F.A. and Takazawa E. (1996) Magma transport and metasomatism in the mantle: A critical review of current geochemical models: Discussion. American Mineralogist, 81, 754-759.
Takazawa E., Frey F. A., Shimizu N., Obata M., and Bodinier J.-L. (1992) Geochemical evidence for melt migration and reaction in the upper mantle. Nature 359, 55-58.
Frey F. A., Shimizu N., Leinbach A., Obata M., and Takazawa E. (1991) Compositional variations within the Lower Layered Zone of the Horoman peridotite, Hokkaido, Japan: Constraints on models for melt-solid segregation. Journal of Petrology (Special Lherzolite issue), 211-227.

**Publications**
Manuscripts Takazawa, E., Okayasu, T. and Satoh, K. (2003) Geochemistry and origin of the basal lherzolites from the northern Oman ophiolite (northern Fizh block). Geochemistry Geophysics Geosystems, 4(2), 1021, doi:10.1029/2001GC000232. Toramaru, A., Takazawa, E., Morishita, T. and Matsukage, K. (2001) Model of layering formation in a mantle peridotite (Horoman, Hokkaido, Japan). Earth and Planetary Science Letters, 185, 299-313. Saal, A.E., Takazawa, E., Frey, F.A., Shimizu, N. and Hart, S.R. (2001) Re-Os isotopes in the Horoman Peridotite: evidence for refertilization? Journal of Petrology, 42, 25-37. Takazawa E., Frey F.A., Shimizu N. and Obata M. (2000) Whole-rock compositional variations in an upper mantle peridotite (Horoman, Hokkaido, Japan): Are they consistent with partial melting hypothesis? Geochimica et Cosmochimica Acta, 64, 695-716. Takazawa E., Frey F.A., Shimizu N., Saal A. and Obata M. (1999) Polybaric petrogenesis of mafic layers in the Horoman Peridotite Complex, Japan. Journal of Petrology, 40, 1827-1851. Rehkamper M., Halliday A.N., Alt J., Fitton J.G., Zipfel J. and Takazawa E. (1999) Non-chondritic platimum-group element ratios in abyssal peridotites: petrogenetic signature of melt percolation?. Earth and Planetary Science Letters, 172, 65-81. Uchino M., Mashimo T., Kodama M., Kobayashi T., Takazawa E., Sekine T., Noguchi Y., Hikosaka H., Fukuoka K., Shono Y., Kondo T. and Yagi T. (1999) Phase transition and EOS of zinc sulfide (ZnS) under shock and static compressions up to 135 GPa. Journal of Physics and Chemistry of Solids, 60, 827-837. Mashimo, T., Uchino, M., Nakamura, A., Kobayashi, T., Takazawa, E., Sekine, T., Noguchi, Y., Hikosaka, H., Fukuoka, K. and Shono, Y. (1999) Yield properties, phase transition, and equation of state of aluminum nitride (AlN) under shock compression up to 150 GPa. Journal of Applied Physics, 86, 6710-6716. Zhu Y., Sekine T., Kobayashi T. and Takazawa E. (1998) Shock-induced phase transitions among SiC politypes. Journal of Materials Science, 33, 5883-5890. Takazawa E., Sekine T., Kobayashi T. and Zhu Y.-Q. (1998) Hugoniot equation of state and high-pressure transformation of jadeite. Journal of Geophysical Research, 103, 12261-12268. Zhu Y.Q., Sekine T., Kobayashi T., Takazawa E., Terrones M. and Terrones H. (1998) Collapsing carbon nanotubes and diamond formation by shock waves. Chemical Physics Letters, 287, 689-693. Kobayashi T., Sekine T., Fat'yanov O.V., Takazawa E. and Zhu Q.Y. (1998) Radiation temperatures of soda-lime glass in its shock-compressed liquid state. Journal of Applied Physics, 83, 1711-1716. Takazawa, E. (1996) Geodynamic Evolution of the Horoman Peridotite, Japan: Geochemical Study of Asthenospheric and Lithospheric Processes. Ph.D. dissertation, Massachusetts Institute of Technology, 562p. Takazawa E., Frey F. A., Shimizu N. and Obata M. (1996) Evolution of the Horoman Peridotite (Hokkaido, J apan): Implications from pyroxene compositions. Chemical Geology (Special issue: Melt Processes and Exhumation of Garnet, Spinel and Plagioclase Facies Mantle. 2nd Orogenic Lherzolites Conference, Granada), 134, 3-26. Navon O., Frey F.A. and Takazawa E. (1996) Magma transport and metasomatism in the mantle: A critical review of current geochemical models: Discussion. American Mineralogist, 81, 754-759. Takazawa E., Frey F. A., Shimizu N., Obata M., and Bodinier J.-L. (1992) Geochemical evidence for melt migration and reaction in the upper mantle. Nature 359, 55-58. Frey F. A., Shimizu N., Leinbach A., Obata M., and Takazawa E. (1991) Compositional variations within the Lower Layered Zone of the Horoman peridotite, Hokkaido, Japan: Constraints on models for melt-solid segregation. Journal of Petrology (Special Lherzolite issue), 211-227.

Papers Presented at International Scientific Meetings

Takazawa, E., Frey, F. A., Shimizu, N., Obata, M., Bodinier, J.-L. (2002) Enrichment of highly incompatible elements at harzburgite-lherzolite boundaries in the Horoman peridotite, Hokkaido, Japan: implications for formation of harzburgite by melt-mantle reaction. Abstract for Fourth International Workshop on Orogenic Lherzolites and Mantle Processes, 171-172, Samani, Hokkaido, Japan.
Takazawa E. and Okayasu, T. (2001) Presence of orogenic-type lherzolite at the base of northern Oman ophiolite. Abstract for International Conference Geology of Oman, 84, Mascut, Oman.
Takazawa E., Frey F.A., Shimizu N., Saal A. and Obata M., (1999) Petrogenesis of mafic layers in the Horoman Peridotite Complex, Japan. Ofioliti, 24 (1a), 173, Abstract for 3rd International Workshop on Orogenic Lherzolites and Mantle Processes, Pavia, Italy.
Takazawa E., Frey F.A. and Shimizu N., (1999) Abundances of trace elements in clinopyroxenes from the Horoman peridotite complex: evidence of reaction with exotic melt/flu id. Ofioliti, 24 (1a), 171-172, Abstract for 3rd International Workshop on Orogenic Lherzolites and Mantle Processes, Pavia, Italy.
Takazawa E., Frey F.A., Shimizu N., Saal A. and Obata M. (1998) Polybaric origin of mafic layers in the Horoman Peridotite Complex, Japan. EOS Transaction, AGU, 79, S368, Spring Meeting Supplment, San Fransisco, USA.
Takazawa E., Sekine T., Kobayashi T. and Zhu Y.-Q. (1998) Shock-induced phase transformation of jadeite. Advanced Materials '98 Advanced Materials Research Utilizing Extrreme Conditions, 197-200, Proceedings of the 5th NIRIM International Symposium on Advanced Materials (ISAM'98), Tsukuba, Japan.
Takazawa E., Sekine T., Kobayashi T., Zhu T. (1997) Shock compression of NaAlSi2O6 to 140 GPa. Special Issue of The Review of High Pressure Science and Technology, 6, 17, Extended abstract for International Conference on High Pressure Science and Technology (JOINT AIRAPT-16 & HPCJ-38), Kyoto, Japan.
Takazawa E., Frey F. A., Shimizu N., Yoshikawa M., and Nakamura E. (1995) Geodynamic evolution of the Horoman peridotite, Hokkaido, Japan based on geochemical studies of a 140 m stratigraphic section. Abstract for 2nd International Workshop on Orogenic Lherzolites and Mantle Processes, Granada, Spain, 68-69.
Takazawa E., Shimizu N., and Frey F. A. (1994) Development and evolution of the lithospheric mantle: a case study from the Horoman peridotite, Japan. Mineralogical Magazine, 58A, 889-890, Extended Abstracts for V.M. Goldschmidt Conference, Edinburg, UK.
Takazawa E. , Shimizu N., and Frey F. A. (1993) Compositional zoning in clinopyroxenes from the Horoman layered ultramafic complex, Japan. EOS Transaction, AGU, 74, 682, Fall Meeting Supplment, San Fransisco, USA.
Takazawa E., Frey F. A., Shimizu N., Obata M., and Nakamura E. (1992) Geochemical characteristics of the Horoman layered ultramafic complex, Hokkaido, Japan: evidence for fluid migration and reaction in the upper mantle. Abstract for 29th International Geological Congress, Kyoto, Japan.
Takazawa E., Frey F. A., Shimizu N., and Obata M. (1991) Trace element abundances in clinopyroxene from the Horoman layered ultramafic complex, Hokkaido, Japan: evidence for fluid migration and reaction in the upper mantle. EOS Transaction, AGU, 72, 537, Fall Meeting Supplment, San Fransisco, USA.

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