2022/11/02 更新

写真a

モリグチ タクヤ
森口 拓弥
MORIGUTI Takuya
所属
惑星物質研究所 准教授
職名
准教授
外部リンク

学位

  • 岡山大学自然科学研究科博士(理学) ( 岡山大学 )

研究キーワード

  • 地殻・マントル物質循環

  • マグマオーシャン

  • 微量元素

  • 高圧実験

  • Geochemistry

  • Isotope

  • 同位体

  • Trace element

  • 地球化学

研究分野

  • 自然科学一般 / 固体地球科学

  • 自然科学一般 / 宇宙惑星科学

  • 自然科学一般 / 固体地球科学

学歴

  • 岡山大学    

    1991年4月 - 1995年3月

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    国名: 日本国

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  • 岡山大学   Graduate School, Division of National Science and Technology   Natural Science

    - 1995年

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  • 信州大学大学院理学研究科修士課程地質学専攻    

    1989年4月 - 1991年3月

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  • 信州大学   Faculty of Science  

    1985年4月 - 1989年3月

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経歴

  • 岡山大学   The Institute for Planetary Materials

    2016年4月 - 現在

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  • 岡山大学地球物質科学研究センター 准教授

    2007年4月 - 2016年3月

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  • 岡山大学地球物質科学研究センター 助教授

    2005年10月 - 2007年3月

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  • 岡山大学地球物質科学研究センター助手

    2005年4月 - 2005年9月

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  • 岡山大学固体地球研究センター 助手

    1998年7月 - 2005年3月

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  • 岡山大学固体地球研究センター 中核的研究機関研究員

    1997年6月 - 1998年6月

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  • 日本学術振興会特別研究員

    1995年4月 - 1997年5月

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▼全件表示

所属学協会

 

論文

  • Melting phase equilibrium relations in the MgSiO3-SiO2 system under high pressures 査読

    Takuya Moriguti, Yusuke Yachi, Akira Yoneda, Eiji Ito

    American Mineralogist   2022年

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

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  • Circa 1 Ga sub-seafloor hydrothermal alteration imprinted on the Horoman peridotite massif 査読

    Lalindra V. Ranaweera, Tsutomu Ota, Takuya Moriguti, Ryoji Tanaka, Eizo Nakamura

    Scientific Reports   8 ( 1 )   2018年12月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media LLC  

    DOI: 10.1038/s41598-018-28219-x

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    その他リンク: http://www.nature.com/articles/s41598-018-28219-x

  • Trace element and isotopic geochemistry of Cretaceous magmatism in NE Asia: Spatial zonation, temporal evolution, and tectonic controls 査読

    Petr L. Tikhomirov, Elena A. Kalinina, Takuya Moriguti, Akio Makishima, Katsura Kobayashi, Eizo Nakamura

    LITHOS   264   453 - 471   2016年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ELSEVIER SCIENCE BV  

    Results of a comprehensive geochemical study (major and trace elements, and isotopes of Sr, Nd, Pb, Hf) of Cretaceous volcanic rocks from the Chukotka area in northeastern Russia are presented. Synthesis of available geological and geochronological data suggests diachronous onset of activity of the Okhotsk-Chukotka volcanic belt (OCVB), the largest magmatic province in the region. The OCVB consists of ca. 10(6) km(3) of volcanic rocks. At 106-105 Ma, subduction-related magmatism initiated in the southern and central segments of the OCVB. In the Central and Northern Chukotka areas, where the northern OCVB is exposed, onset of arc magmatism occurred ca. 10 m.y. after extension-related magmatism of the Chaun igneous province at 109-104 Ma. Mafic rocks from the OCVB yield (Sr-87/Sr-86)(80) (Ma) of 0.7033 to 0.7047, epsilon Nd-80 (Ma) of 0.0 to 7.10, epsilon Hf-80 (Ma) of 4.12 to 12.88, ((206)pw(204)pb)(80 Ma) of 18.11 to 18.42, and ((208)pb/(204)pb)(80 Ma) of 37.96 to 38.21. Volcanic rocks from the Chaun province, as well as OCVB rocks from Northern Chukotka, originate from a relatively enriched source and have (Sr-87/Sr-86)(80) (Ma) of 0.7088 to 0.7100, epsilon Nd-80 (Ma) of -5.81 to -3.42, epsilon Hf-80 (Ma) of -3.40 to -0.25, ((206)pb/(204)pb)(80 Ma) of 18.69 to 18.90, and ((208)pb/(204)pb)(80 Ma) of 38.65 to 38.86. No definitive across-arc elemental or isotopic zonation of the OCVB has been revealed, probably because of wide-scale crustal melting and subsequent contamination of mantle-derived melts. However, there is a clear along-arc isotopic zonation. In our interpretation, this results from heterogeneity of the subcontinental lithospheric mantle, which likely was a major contributor to the magma source. The similar isotopic signatures of silicic (dominantly crust-derived) and mafic (mantle-derived) volcanic rocks in each OCVB segment imply that remelting of juvenile mafic underplated material was the main process responsible for the crust-derived magma generation. These data from the major Cretaceous magmatic provinces of northeast Asia are synthesized in context of existing plate tectonic reconstructions. (C) 2016 Elsevier B.V. All rights reserved:

    DOI: 10.1016/j.lithos.2016.08.009

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  • A preliminary study on boron isotope fractionation of major rock-forming minerals in granite 査読

    Zhao KuiDong, Jiang ShaoYong, Eizo Nakamura, Takuya Moriguti, Wet HaiZhen

    ACTA PETROLOGICA SINICA   31 ( 3 )   740 - 746   2015年3月

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    記述言語:中国語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SCIENCE PRESS  

    We present boron concentrations and boron isotopic compositions of whole-rocks and major rock-forming minerals (biotite, plagioclase, quartz) from two granites in South China. Biotite has highest boron concentrations, and plagioclase has medium boron concentrations. Quartz has very low boron concentrations. Boron in granite is predominantly present in the biotite and plagioclase structure replaced Si and/or Al. Trace boron in quartz may concentrate in the fluid inclusions. Biotite has lowest boron isotopic compositions and quartz has highest boron isotopic compositions. This study firstly proves that large differences of boron isotopic compositions exist between rock-forming minerals in granites. Boron isotopic fractionation between biotite and plagioclase is -9.3 parts per thousand for the Dadongshan granite and -6.6 parts per thousand for the Qianlishan granite, respectively. Boron isotopic fractionation between biotite and quartz is -9.9 parts per thousand for the Dadongshan granite and -10.2 parts per thousand for the Qiardishan granite, respectively. Combining oxygen isotopic data, we suggest the large boron isotopic differences between minerals may be induced by post-magma hydrothermal alteration. The T-dependent fractionation factor of boron isotopes between silicates containing tetrahedrally coordinated boron and neutral-acid fluids is approximated by the equation: 1000ln alpha(silicate-fluid) = -11.19 x (10(3)/T[K]) + 5.09. The main fractionation effect is due to the change from trigonal coordination of boron in fluids to tetrahedrally coordinated boron in silicates.

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  • Sediment-enriched adakitic magmas from the Daisen volcanic field, Southwest Japan 査読

    Maureen Feineman, Takuya Moriguti, Tetsuya Yokoyama, Sakiko Terui, Eizo Nakamura

    GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS   14 ( 8 )   3009 - 3031   2013年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:AMER GEOPHYSICAL UNION  

    The Quaternary Southwest Japan Arc is a product of subduction of the hot, young Philippine Sea Plate beneath the Eurasian Continental Plate. The magmas erupted from the Southwest Japan Arc belong to a category of magmas commonly referred to as adakites or adakitic magmas. These magmas show trace element evidence for interaction with garnet at depth, and may be associated with partial melting of subducted altered oceanic crust. Also found throughout the southern Sea of Japan region are alkali basalts with little apparent connection to the subduction zone. We have determined major element, trace element, and Sr, Nd, Pb, and U-Th isotopic compositions for a bimodal suite of lavas erupted at the Daisen volcanic field in the Southwest Japan Arc. These magmas consist of mildly alkaline basalts and a calcalkaline intermediate suite, separated by a approximate to 10 wt.% silica gap. The intermediate magmas show trace element and isotopic evidence for interaction with garnet, consistent with partial melting of the hot, young (approximate to 20 Ma) Philippine Sea Plate. The Daisen intermediate magmas are distinct from other adakitic magmas in their radiogenic isotopic characteristics, consistent with a significant contribution (approximate to 25%) from subducted Nankai Trough sediments. Our data suggest that the basalts erupted at the Daisen volcanic field are not parental to the intermediate magmas, and contain a small contribution of EM1-like mantle common in Sea of Japan alkali basalts but not apparent in the Daisen intermediate magmas.

    DOI: 10.1002/ggge.20176

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  • The lithium, boron and strontium isotopic systematics of groundwaters from an arid aquifer system: Implications for recharge and weathering processes 査読 国際共著

    Karina Meredith, Takuya Moriguti, Paul Tomascak, Suzanne Hollins, Eizo Nakamura

    Geochimica et Cosmochimica Acta   112   20 - 31   2013年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    Saline groundwaters are common to inland Australia, but their hydrochemical evolution and origin remain largely unknown. The saline groundwaters in the alluvial aquifers of the Darling River have previously been found to exhibit broad similarity in traditional hydrochemical and isotopic tracers. By contrast, in this study the trace element isotopes (δ7Li, δ11B and 87Sr/86Sr) have illuminated more complex hydrogeochemical processes in the same aquifer system. This paper reports the first ever set of δ7Li values in any groundwater system in Australia. They varied from +5.8 to +16.2 with an average value of +9.7‰ (n=19) in the alluvial aquifers of the Darling River catchment. The δ11B values were all higher than seawater and close to some of the highest δ11B values ever reported in the literature for a groundwater system (+44.4 to +53.9
    average: +48.8, n=17). The 87Sr/86Sr ratios ranged from 0.708 to 0.713, with an average value of 0.709 (n=19). The differing signatures in these trace element isotope values, highlighted by discovery of the deeper older groundwater system with heavier Li isotope values and higher 87Sr/86Sr, is an important finding of this research. Simple mixing models between river water and saline groundwater cannot explain the observed variation in trace element isotopes. Hydrochemical evolution was found to be dependent on proximity to the Darling River and depth. Varying degrees of Li and B isotopic fractionation during water-sediment interaction were interpreted to account for the evolution of the saline groundwaters. The measurement of these trace element isotopes has permitted delineation of groundwater end-members that would have otherwise not been identified
    in their absence an inaccurate interpretation of the hydrochemical evolution of these saline groundwaters would have been made. This study highlights the importance of a multi-tracer approach, which includes trace element isotopes, in resolving complex geochemical processes in groundwater in semi-arid to arid zone environments. © 2013.

    DOI: 10.1016/j.gca.2013.02.022

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  • Devolatilization history and trace element mobility in deeply subducted sedimentary rocks: Evidence from Western Alps HP/UHP suites 査読

    Gray E. Bebout, Philippe Agard, Katsura Kobayashi, Takuya Moriguti, Eizo Nakamura

    CHEMICAL GEOLOGY   342   1 - 20   2013年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ELSEVIER SCIENCE BV  

    Metapelitic rocks of the Schistes Lustre's in the Cation Alps, Italy (peak metamorphic conditions of 350-500 degrees C, 1.2-2.0 GPa) and at the UHP Lago di Cignana locality (Valtournenche, Italy; similar to 550 degrees C, 2.5-3.0 GPa) preserve records of prograde devolatilization in their mineral modes and chemistry, contents of volatiles and fluid-mobile elements (elements relatively mobile in aqueous fluids), and B and N isotope compositions. This suite allows study of prograde devolatilization history, across a wide range in metamorphic grade, in metasedimentary rocks that experienced high-P/T prograde paths similar to those experienced in most modern subduction zones.
    Across grade, whole-rock samples are in general uniform in their concentrations of relatively fluid-mobile elements N, B, Li, Cs, Ba, and Rb, normalized to the concentrations of the less mobile K2O and Al2O3, showing only hints of loss in several of the highest-grade samples. With increasing grade, ion microprobe analyses of phengites show subtle decrease in B concentration, uniformity in Ba and Cs concentrations, and increase in Li concentrations, the latter likely due to release from chlorite during its breakdown. In one Cignana sample, phengite inclusions in garnets are enriched in B relative to matrix phengite, consistent with either whole-rock B loss after garnet growth or, more likely, closed-system behavior and partitioning of B into paragonite or tourmaline stabilized after garnet growth. In samples with both paragonite and phengite, paragonite shows relative enrichment in B and Sr, and phengite is enriched in Cs, Ba, and presumably also N and Rb (the latter showing strong whole-rock correlations with K2O).
    Whole-rock delta N-15 shows a hint of shift to higher values in the highest grade rocks (Cignana) and, accordingly, calculated prograde dehydration histories for appropriate bulk compositions, using the Perple-X database, indicate that significant (similar to 20%) dehydration would for some rocks occur over the temperature interval of 450 to 550 degrees C, largely related to the breakdown of chlorite (and to a lesser extent carpholite). Small amounts of loss of N into these fluids could have resulted in minor shift in delta N-15, with decrease in whole-rock N concentration masked by heterogeneity inherent with the sedimentary protoliths. Partitioning of Cs and Li (possibly also Rb and Ba) from white micas into H2O-rich fluids largely produced by chlorite breakdown could similarly have produced the subtle decreases in the concentrations in these elements noted in several high-grade samples. Neoblastic tourmaline in higher-grade rocks likely sequestered some fraction of the B lost from micas, resulting in a lack of obvious whole-rock B loss to accompany the up-grade trend of decreasing B concentrations in phengite. This tourmaline shows core-to-rim decrease in delta B-11 consistent with growth during small amounts of progressive B loss from phengites.
    Taken together, the whole-rock and SIMS data presented here, and the whole-rock dataset of Busigny et al. (2003), demonstrate impressive retention, during prograde forearc devolatilization, of elements thought to be relatively fluid-mobile (particularly H, N, B, Li, Bo, and Cs). Retention of these elements in metasedimentary rocks subducted to depths overlapping those beneath arc volcanic fronts (similar to 90 km estimated for subsolidus, peak Cignana metamorphism) implies their availability for transfer into arc source regions, in aqueous fluids or silicate melts, or into the mantle to depths beyond subarc regions. (C) 2013 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.chemgeo.2013.01.009

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  • The Cretaceous Okhotsk–Chukotka Volcanic Belt (NE Russia): Geology, geochronology, magma output rates, and implications on the genesis of silicic LIPs 査読

    P.L. Tikhomirov, E.A. Kalinina, T. Moriguti, A. Makishima, K. Kobayashi, I.Yu. Cherepanova, E. Nakamura

    Journal of Volcanology and Geothermal Research   221-222   14 - 32   2012年4月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.jvolgeores.2011.12.011

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  • Space environment of an asteroid preserved on micrograins returned by the Hayabusa spacecraft 査読

    Eizo Nakamura, Akio Makishima, Takuya Moriguti, Katsura Kobayashi, Ryoji Tanaka, Tak Kunihiro, Tatsuki Tsujimori, Chie Sakaguchi, Hiroshi Kitagawa, Tsutomu Ota, Yusuke Yachi, Toru Yada, Masanao Abe, Akio Fujimura, Munetaka Ueno, Toshifumi Mukai, Makoto Yoshikawa, Jun'ichiro Kawaguchi

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   109 ( 11 )   E624 - E629   2012年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:NATL ACAD SCIENCES  

    Records of micrometeorite collisions at down to submicron scales were discovered on dust grains recovered from near-Earth asteroid 25143 (Itokawa). Because the grains were sampled from very near the surface of the asteroid, by the Hayabusa spacecraft, their surfaces reflect the low-gravity space environment influencing the physical nature of the asteroid exterior. The space environment was examined by description of grain surfaces and asteroidal scenes were reconstructed. Chemical and O isotope compositions of five lithic grains, with diameters near 50 mu m, indicate that the uppermost layer of the rubble-pile-textured Itokawa is largely composed of equilibrated LL-ordinary-chondrite-like material with superimposed effects of collisions. The surfaces of the grains are dominated by fractures, and the fracture planes contain not only sub-mu m-sized craters but also a large number of sub-mu m-to several-mu m-sized adhered particles, some of the latter composed of glass. The size distribution and chemical compositions of the adhered particles, together with the occurrences of the sub-mu m-sized craters, suggest formation by hypervelocity collisions of micrometeorites at down to nm scales, a process expected in the physically hostile environment at an asteroid's surface. We describe impact-related phenomena, ranging in scale from 10(-9) to 10(4) meters, demonstrating the central role played by impact processes in the long-term evolution of planetary bodies. Impact appears to be an important process shaping the exteriors of not only large planetary bodies, such as the moon, but also low-gravity bodies such as asteroids.

    DOI: 10.1073/pnas.1116236109

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  • 「はやぶさ」回収試料初期分析に至るまで:地球惑星物質総合解析システムの構築 招待 査読

    中村栄三, 牧嶋昭夫, 森口拓弥, 小林桂, 田中亮吏, 国広卓也, 辻森樹

    表面科学   33 ( 12 )   681 - 686   2012年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:日本表面科学会  

    DOI: 10.1380/jsssj.33.681

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  • Fluid–rock interaction in the Qitianling granite and associated tin deposits, South China: Evidence from boron and oxygen isotopes 査読

    Kui-Dong Zhao, Shao-Yong Jiang, Eizo Nakamura, Takuya Moriguti, Martin R. Palmer, Shui-Yuan Yang, Bao-Zhang Dai, Yao-Hui Jiang

    Ore Geology Reviews   43 ( 1 )   243 - 248   2011年12月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.oregeorev.2011.07.002

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  • Degassing, crystallization and eruption dynamics at Stromboli: trace element and lithium isotopic evidence from 2003 ashes 査読

    Federica Schiavi, Katsura Kobayashi, Takuya Moriguti, Eizo Nakamura, Massimo Pompilio, Massimo Tiepolo, Riccardo Vannucci

    CONTRIBUTIONS TO MINERALOGY AND PETROLOGY   159 ( 4 )   541 - 561   2010年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SPRINGER  

    During its 1800-year-long persistent activity the Stromboli volcano has erupted a highly porphyritic (HP) volatile-poor scoriaceous magma and a low porphyritic (LP) volatile-rich pumiceous magma. The HP magma is erupted during normal Strombolian explosions and lava effusions, while the LP one is related to more energetic paroxysms. During the March-April 2003 explosive activity, Stromboli ejected two typologies of juvenile glassy ashes, namely highly vesicular LP shards and volatile-poor HP shards. Their textural and in situ chemical characteristics are used to unravel mutual relationships between HP and LP magmas, as well as magma dynamics within the shallow plumbing system. The mantle-normalized trace element patterns of both ash types show the typical arc-lava pattern; however, HP glasses possess incompatible element concentrations higher than LP glasses, along with Sr and Eu negative anomalies. HP shards are generally characterized by higher Li contents (to similar to 20 ppm) and lower delta Li-7 values (+1.2 to -3.8aEuro degrees) with respect to LP shards (Li contents of 7-14 ppm and delta Li-7 ranging between +4.6 and +0.9aEuro degrees). Fractional crystallization models based on major and trace element compositions, combined with a degassing model based on open-system Rayleigh distillation and on the assumption that D-melt/fluid(Li) > 1, show that abundant (similar to 30%) plagioclase precipitation and variable degrees of degassing can lead the more primitive LP magma to evolve toward a differentiated (isotopically lighter) HP magma ponding in the upper conduit and undergoing slow continuous degassing-induced crystallization. This study also evidences that in March 2003 Stromboli volcano poured out a small early volume of LP magma that traveled slower within the conduit with respect to later and larger volumes of fast ascending LP magma erupted during the April 5 paroxysm. The different ascent rates and cooling rates of the two LP magma batches (i.e., pre- and post-paroxysm) resulted in small, but detectable, differences in their chemical signatures. Finally, this study highlights the high potential of in situ investigations of juvenile glassy ashes in petrologic and geochemical monitoring the volcanic activity and of Li isotopes as tracers of degassing processes within the shallow plumbing system.

    DOI: 10.1007/s00410-009-0441-2

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  • Slab decarbonation and CO2 recycling in the Southwestern Colombian volcanic arc 査読

    Maria I. Marin-Ceron, Takuya Moriguti, Akio Makishima, Eizo Nakamura

    GEOCHIMICA ET COSMOCHIMICA ACTA   74 ( 3 )   1104 - 1121   2010年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD  

    The contribution of subducted carbonate sediments to the genesis of the Southwestern Colombian arc magmas was investigated using a comprehensive petrography and geochemical analysis, including determination of major and trace element contents and Sr, Nd, Hf and Pb isotope compositions. These data have been used to constrain the depth of decarbonation in the subducted slab, indicating that the decarbonation process continues into the sub-arc region, and ultimately becomes negligible in the rear arc. We propose on the basis of multi-isotope approach and mass balance calculations, that the most important mechanism to induce the slab decarbonation is the infiltration of chemically reactive aqueous fluids from the altered oceanic crust, which decreasingly metasomatize the mantle wedge, triggering the formation of isotopically different primary magmas from the volcanic front (VF) with relatively high Hf-176/Hf-177, high Sr-87/Sr-86, negative values of epsilon Nd and lower Pb isotopes compared to the rear arc (RA).
    The presence of more aqueous fluids at the volcanic front may increase the degree of decarbonation into carbonate-bearing lithologies. Moreover, with increasing pressure and temperature in the subduction system, the decrease in dehydration of the slab, leads to cessation of fluid-induced decarbonation reactions at the rear arc. This development allows the remaining carbonate materials to be recycled into the deep mantle. (C) 2009 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.gca.2009.10.031

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  • Sr-Nd-Hf-Pb isotopic characteristics of North-Western and Southern Ethiopian lithospheric mantle 査読

    Melesse A, Kunihiro T, Ota T, Tanaka R, Moriguti T, Nakamura E

    Geochimica Et Cosmochimica Acta   74 ( 12 )   A697   2010年

  • Lithium isotopic systematics of peridotite xenoliths from Hannuoba, North China Craton: Implications for melt–rock interaction in the considerably thinned lithospheric mantle 査読

    Yan-Jie Tang, Hong-Fu Zhang, Eizo Nakamura, Takuya Moriguti, Katsura Kobayashi, Ji-Feng Ying

    Geochimica et Cosmochimica Acta   71 ( 17 )   4327 - 4341   2007年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.gca.2007.07.006

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  • Boron and lead isotope signatures of subduction-zone mélange formation: Hybridization and fractionation along the slab–mantle interface beneath volcanic arcs 査読

    Robert L. King, Gray E. Bebout, Marty Grove, Takuya Moriguti, Eizo Nakamura

    Chemical Geology   239 ( 3-4 )   305 - 322   2007年4月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.chemgeo.2007.01.009

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  • Elemental mixing systematics and Sr-Nd isotope geochemistry of melange formation: Obstacles to identification of fluid sources to arc volcanics 査読

    Robert L. King, Gray E. Bebout, Takuya Moriguti, Eizo Nakamura

    EARTH AND PLANETARY SCIENCE LETTERS   246 ( 3-4 )   288 - 304   2006年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ELSEVIER SCIENCE BV  

    We present major and trace element concentrations in conjunction with Sr-Nd isotope ratios to investigate the geochemical characteristics of melange formation along the subduction zone slab-mantle interface. Melange matrix of the Catalina Schist formed within an active subduction zone of the southern California borderland in Cretaceous time. Melange formed through the synergistic effects of deformation and metasomatic fluid flow affecting peridotite, basaltic, and sedimentary protoliths to form hybridized bulk compositions not typical of seafloor "input" lithologies. In general, all elemental concentrations primarily reflect mechanical mixing processes, while fluid flow mediates all elemental systematios to a varying extent that is largely a function of inferred "mobility" for a particular element or the stability of suitable mineral hosts. Elemental data reveal that mineral stabilities defined by the evolution of bulk composition within melange zones are probably the most important control of solid, liquid, or fluid geochemistry within the subduction system. Sr-Nd isotope ratios are highly variable and reflect contributions of melange protoliths to varying extents. A weak mechanical mixing array present in Sr isotope data is strongly overprinted by a fluid signal that dominates melange Sr systematics. Nd isotope data suggest that Nd is more conservative during metamorphism and is largely controlled by mechanical mixing. We argue that melange formation is an intrinsic process to all subduction zones and that the geochemistry of melange will impart the strongest control on the geochemistry of metasomatic agents (hydrous fluids, silicate melts, or miscible supercritical liquids) progressing to arc magmatic source regions in the mantle wedge. Melange formation processes suggest that comparisons of subduction "inputs" to arc volcanic "outputs" as a means to infer recycling at subduction zones dangerously over-simplify the physics of the mass transfer in subduction zones, as subducted mass is consistently redistributed into novel bulk compositions. Such melange zones along the slab-mantle interface simultaneously bear characteristic elemental or isotopic signals of several distinct input lithologies, while experiencing phase equilibria not typical of any input. We recommend that future studies explore the phase equilibria of hybridized systems and mineral trace element residency, as these processes provide for a physical baseline from which it will be possible to follow the path of subducted mass through the system. (c) 2006 Elsevier B.V All rights reserved.

    DOI: 10.1016/j.epsl.2006.03.053

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  • Lithium, boron and lead isotope and trace element systematics of Quaternary basaltic volcanic rocks in northeastern Japan: mineralogical controls on slab-derived fluid composition 査読

    Takuya Moriguti, Tomoyuki Shibata, Eizo Nakamura

    Chemical Geology   212 ( 1-2 )   81 - 100   2004年11月

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    担当区分:筆頭著者   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.chemgeo.2004.08.005

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  • Determination of Lithium Contents in Silicates by Isotope Dilution ICP-MS and its Evaluation by Isotope Dilution Thermal Ionisation Mass Spectrometry 査読

    Takuya Moriguti, Akio Makishima, Eizo Nakamura

    Geostandards and Geoanalytical Research   28 ( 3 )   371 - 382   2004年11月

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    担当区分:筆頭著者   掲載種別:研究論文(学術雑誌)   出版者・発行元:Wiley  

    DOI: 10.1111/j.1751-908x.2004.tb00756.x

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  • Lithium, boron, and lead isotope systematics of glass inclusions in olivines from Hawaiian lavas: evidence for recycled components in the Hawaiian plume 査読

    Katsura Kobayashi, Ryoji Tanaka, Takuya Moriguti, Kenji Shimizu, Eizo Nakamura

    Chemical Geology   212 ( 1-2 )   143 - 161   2004年11月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.chemgeo.2004.08.050

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  • Evolution of an isotopically depleted mantle xenolith from salt lake crater, Hawaii 査読

    Nakamura E, Sakaguchi C, Tanaka R, Moriguti T, Kushiro I

    Geochimica Et Cosmochimica Acta   67 ( 18 )   A324   2003年

  • ハワイアンプリューム端成分としてのマントル捕獲岩の発見?

    中村 栄三, 坂口 千恵, 田中 亮吏, 森口 拓弥, 久城 育夫

    日本岩石鉱物鉱床学会 学術講演会 講演要旨集   2002   251 - 251   2002年

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    出版者・発行元:日本鉱物科学会  

    DOI: 10.14824/jampeg.2002.0.251.0

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  • Across-arc variation of Li isotopes in lavas and implications for crust/mantle recycling at subduction zones 査読

    MORIGUTI T.

    Earth Planet. Sci. Lett.   163 ( 1-4 )   167 - 174   1998年11月

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    担当区分:筆頭著者   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/s0012-821x(98)00184-8

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  • High-yield lithium separation and the precise isotopic analysis for natural rock and aqueous samples 査読

    Takuya Moriguti, Eizo Nakamura

    Chemical Geology   145 ( 1-2 )   91 - 104   1998年3月

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    担当区分:筆頭著者   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/s0009-2541(97)00163-0

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  • リチウムの地球・宇宙化学 Li同位体のトレーサーとしての可能性と課題 査読

    森口拓弥, 中村栄三, 石川剛志

    岩鉱   88 ( 9 )   415 - 431   1993年

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    担当区分:筆頭著者   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2465/ganko.88.415

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  • Precise Lithium Isotopic Analysis by Thermal Ionization Mass Spectrometry Using Lithium Phosphate as an Ion Source Material. 査読

    MORIGUTI Takuya, NAKAMURA Eizo

    Proceedings of the Japan Academy, Series B   69 ( 6 )   123 - 128   1993年

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:The Japan Academy  

    A high-precision Li isotope analysis was developed for determining the Li+ ion emitted from lithium phosphate as an ion source material by a Re double-filament ionization method in the thermal ionization mass spectrometry. In this method, Li isotopic fractionation is distinctly less sensitive to the filament temperature than those in the previous methods, and stable and high ion beam intensity of more than 8×10-11 A for 7Li is obtained. These advantages in determining the 7Li/6Li ratio result in the analytical reproducibility of 0.26‰ (1σ). Furthermore, the sample preparation is simple and the low temperature (850°C) required by this method ensures the analysis of the isotopic composition of small amounts of Li with less influence of Li contamination to the sample, compared with the previous methods.

    DOI: 10.2183/pjab.69.123

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  • 北上山地,遠野地域に分布する13Cに富む石灰岩について 査読

    森清寿郎, 奥山靖子, 田端寛和, 森口拓弥, 須貝 寿, 岩政一生, 氏家真澄

    地球科学   46 ( 1 )   21 - 28   1992年

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:地学団体研究会  

    Measurements were made of the carbon and oxygen isotope ratios of 39 limestones from the Tono district in the Kitakami Mountains, northern Japan. The limestones are assigned to either the Carboniferous or the Lower Permian. The δ13C values of the limestones range from -3.2 to 10.3‰ relative to the PDB standard. Eight samples are found to have δ13C values higher than 5‰, which are quite unusual for the limestones of marine origin. The δ18O values range from 17.4 to 30.3‰ relative to the SMOW standard and they are not different from those of Paleozoic marine limestones. The limestones have been subjected to thermal metamorphism by the Cretaceous granite (Tono mass). But the carbon isotopic anomaly of the limestones cannot be ascribed to the effects of the metamorphism. Although diagenetic reactions producing methane at the expense of organic matter may form 13C enriched carbonates in pelitic rocks, it seems unlikely that the process played an important role in altering whole-rock δ13C values of the limestones. Accordingly, it is concluded that the enrichment of 13C in the limestons formed at the time of deposition. This indicates the existence of an abnormal environment of deposition during the Carboniferous and the Permian period in the South Kitakami terrane.

    DOI: 10.15080/agcjchikyukagaku.46.1_21

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MISC

  • 地球惑星物質総合解析システムの構築と応用

    中村栄三, 牧嶋昭夫, 森口拓弥, 小林桂, 田中亮吏, 国広卓也, 北川宙, 太田努, 坂口千恵, 山中正博

    法政大学イオンビーム工学研究所シンポジウム講演予稿集   36th   2017年

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  • In situ geochemistry of garnet peridotites of Lashaine, Tanzania craton: Re-fertilization in subcratonic lithospheric mantle

    A. Basu Sarbadhikari, T. Tsujimori, T. Moriguti, T. Kunihiro, E. Nakamura

    GEOCHIMICA ET COSMOCHIMICA ACTA   74 ( 12 )   A58 - A58   2010年6月

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    記述言語:英語   掲載種別:研究発表ペーパー・要旨(国際会議)   出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD  

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  • Post-entrapment Li isotope fractionation in melt inclusions from Volcan Jorullo, Mexico

    Feineman, M, Johnson, E, Wallace, P, Kobayashi, K, Moriguti, T, Nakamura, E

    GEOCHIMICA ET COSMOCHIMICA ACTA   72   A261-A261   2008年

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  • Large-scale fluid flow in a cold subduction-zone: SIMS Li-isotope study of jadeitite veins in Franciscan metagraywacke

    Tsujimori, T, Moriguti, T, Kunihiro, T, Kobayashi, K, Nakamura, E

    GEOCHIMICA ET COSMOCHIMICA ACTA   71   A1040-A1040   2007年

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  • Melange zones as a better source for the "slab" signature in arcs

    RL King, GE Bebout, T Moriguti, E Nakamura

    GEOCHIMICA ET COSMOCHIMICA ACTA   69 ( 10 )   A654 - A654   2005年5月

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    記述言語:英語   掲載種別:研究発表ペーパー・要旨(国際会議)   出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD  

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  • The behavior of boron in hydrothermal alterations of granites

    KD Zhao, SY Jiang, E Nakamura, T Moriguti, YH Jiang, HF Ling

    GEOCHIMICA ET COSMOCHIMICA ACTA   69 ( 10 )   A791 - A791   2005年5月

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    記述言語:英語   掲載種別:研究発表ペーパー・要旨(国際会議)   出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD  

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  • Sources of magmatism at Daisen Volcano, Southwest Japan arc

    M Feineman, T Moriguti, E Nakamura

    GEOCHIMICA ET COSMOCHIMICA ACTA   69 ( 10 )   A638 - A638   2005年5月

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    記述言語:英語   掲載種別:研究発表ペーパー・要旨(国際会議)   出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD  

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  • 東北日本弧第四紀玄武岩質火山岩類のリチウム・ホウ素・鉛同位体と微量元素システマティクス

    森口 拓弥, 柴田 知之, 中村 栄三

    日本鉱物学会・学術講演会,日本岩石鉱物鉱床学会学術講演会講演要旨集   2004   173 - 173   2004年9月

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  • ハワイ火山岩のオリビンガラス包有物のリチウム・ホウ素・鉛同位体システマティクス

    小林 桂, 田中 亮吏, 森口 拓弥, 清水 健二, 中村 栄三

    日本鉱物学会・学術講演会,日本岩石鉱物鉱床学会学術講演会講演要旨集   2004   186 - 186   2004年9月

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  • Geochemistry of melange formation: Identifying contributions from mechanical and metasomatic mixing

    RL King, GE Bebout, T Moriguti, E Nakamura

    GEOCHIMICA ET COSMOCHIMICA ACTA   67 ( 18 )   A218 - A218   2003年9月

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    記述言語:英語   掲載種別:研究発表ペーパー・要旨(国際会議)   出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD  

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  • Lithium and lead isotopes and trace element systematics of Quaternary basaltic volcanic rocks in Northeastern Japan

    T Moriguti, E Nakamura

    GEOCHIMICA ET COSMOCHIMICA ACTA   67 ( 18 )   A305 - A305   2003年9月

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    記述言語:英語   掲載種別:研究発表ペーパー・要旨(国際会議)   出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD  

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  • Comprehensive geochemical analyses of small amounts (&1t; 100 mg) of extraterrestrial samples for the analytical competition related to the sample return mission MUSES-C

    Nakamura Eizo, Makishima Akio, Moriguti Takuya, Kobayashi Katsura, Sakaguchi Chie, Yokoyama Tetsuya, Tanaka Ryoji, Kuritani Takeshi, Takei Hiroyuki

    The Institute of Space and Astronautical Science report. S.P.   16   49 - 101   2003年3月

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    記述言語:英語   出版者・発行元:宇宙航空研究開発機構  

    We have participated in the analytical competition related to the sample-return mission, MUSES-C of the ISAS, to be launched in May 2003 and returned in summer 2007. In this competition, we have determined major and trace element abundances and isotopes (as many as possible), both for two powdered samples provided by the ISAS and for chondrules separated from Allende meteorite as an additional demonstration of our high-spatial resolution analytical capabilities for fragment samples. 100 mg of each of the competition samples, 1C and 2C, were split into two fractions of approximately 30 and 70 mg for the determinations of elemental abundances and the isotope analyses, respectively. The bulk concentrations of 55 elements in each 30 mg sample were analyzed by quadruple-type ICP-MS and sector-type ICP-MS with analytical uncertainties better than 10 percent (1 sigma). B, Pb, Li, Rb, Sr, Sm and Nd were successively separated from the remaining 70 mg of each of the samples, using a novel integrated, multi-ion exchange column chemistry approach, and then the isotopes of these elements were successfully determined by TIMS with analytical errors similar to those for analyses of terrestrial samples. The Sr, Nd, Re and Os isotopic compositions were also analyzed using the remaining aliquots of the sample solutions for trace element analyses by ICP-MS. The results obtained in this study indicate that 1C and 2C samples are probably ordinary chondrite and the Allende meteorite, respectively. However, extreme W, Ta and Nb enrichments in the 1C were probably caused by contamination during sample preparation. Furthermore, both of the samples were extensively contaminated by B from the borosilicate glass container in which the samples were delivered. Five chondrules were separated from Allende meteorite and then sliced into three pieces using a dicing saw. The center slices were used to petrographically determine the mineral phases, compositionally map these phases by SEM-EDX, and obtain quantitative major and trace element compositions (30 elements) by SEM-EDX and ion microprobe. The two outer slices, for which sample masses were less than 1 mg, were chemically treated to obtain the bulk trace elements and isotope compositions of the chondrules. For the chondrule slices, 24 trace elements and Sr and Nd isotopic compositions were determined with extremely small analytical uncertainties by ICP-MS and TIMS (for Sr and Nd, respectively). Based on the analytical experience, including this competition, we believe that all of the analyses carried out could have been completed within 50 days if we could have concentrated on this project alone during that 50-day period. In this report, we describe the analytical techniques employed for the powdered samples and the chondrules, and we present all of the results obtained during the approximately 3-month period of the analytical competition.

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講演・口頭発表等

  • Shock-induced deformation of pyroxene in Martian Regolith Breccias

    Cao, F, Flemming, R. L, Izawa, M. R. M, Moriguti, T, Agee, C. B

    GAC-MAC London 2021 Joint Annual Meeting 

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    開催年月日: 2021年11月1日 - 2021年11月5日

    記述言語:英語   会議種別:口頭発表(一般)  

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  • 13.5 GPaにおけるMgSiO3–SiO2系の溶融相平衡関係

    森口拓弥, 谷内勇介, 米田 明, 伊藤英司

    第62回高圧討論会  2021年10月20日  日本高圧力学会

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    開催年月日: 2021年10月18日 - 2021年10月20日

    記述言語:日本語   会議種別:ポスター発表  

    開催地:姫路  

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  • Mineralogy, Petrology, and Geochemistry of Martian Regolith Breccias: Insights into The Martian Crust.

    Cao, F, Flemming, R. L, Izawa, M. R. M, Moriguti, T, Agee, C. B

    Goldshcmidt 2021  2021年7月5日 

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    開催年月日: 2021年7月4日 - 2021年7月9日

    記述言語:英語   会議種別:ポスター発表  

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  • Melting phase equilibrium relations in the MgSiO3-SiO2 system at 13.5 GPa

    Moriguti, T, Yachi, Y, Yoneda, A, Ito, E

    JpGU 2021  2021年6月5日 

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    開催年月日: 2021年5月31日 - 2021年6月6日

    記述言語:英語   会議種別:ポスター発表  

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  • 高圧条件下におけるMgSiO3-SiO2系の溶融相平衡関係

    森口拓弥, 谷内勇介, 米田 明, 伊藤英司

    第61回高圧討論会  2020年12月3日 

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    開催年月日: 2020年12月2日 - 2020年12月4日

    記述言語:日本語   会議種別:ポスター発表  

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  • Melting experiments in the system MgSiO3 – SiO2 at 13 GPa

    Moriguti, T, Yoneda, A, Ito, E

    JpGU 2020  2020年7月15日 

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    開催年月日: 2020年7月12日 - 2020年7月16日

    記述言語:英語   会議種別:ポスター発表  

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  • 13GPaにおけるMgSiO3 – SiO2 系の溶融相平衡関係

    森口拓弥, 米田 明, 伊藤英司

    第60回高圧討論会  2019年10月25日 

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    開催年月日: 2019年10月23日 - 2019年10月25日

    記述言語:日本語   会議種別:ポスター発表  

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  • Melting phase equilibrium relations in the MgSiO3 – SiO2 system under high pressures

    Moriguti, T, Yoneda, A, Ito, E

    JpGU 2019  2019年5月29日 

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    開催年月日: 2019年5月26日 - 2019年5月30日

    記述言語:日本語   会議種別:ポスター発表  

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  • 高圧下におけるMgSiO3-SiO2系の溶融相平衡関係について

    森口拓弥, 米田 明, 伊藤英司

    第59回高圧討論会  2018年11月27日 

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    開催年月日: 2018年11月26日 - 2018年11月28日

    記述言語:日本語   会議種別:ポスター発表  

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  • Phase equilibrium relations in MgSiO3 – SiO2 under high pressures

    森口 拓弥

    日本地球惑星科学連合大会  2018年5月24日 

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    開催年月日: 2018年5月20日 - 2018年5月24日

    記述言語:英語   会議種別:ポスター発表  

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  • 高圧下におけるMgSiO3-SiO2系の溶融相平衡関係の解明

    森口拓弥, 米田 明, 伊藤英司

    第58回高圧討論会  2017年11月9日 

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  • Melting relations in the system of MgSiO3 – SiO2 at high pressures, Makuhari Messe, Chiba, Japan

    Moriguti, T, Yoneda, A, Ito, E

    日本地球惑星科学連合大会  2017年5月21日 

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  • Lithium isotope signatures of orogenic peridotites in Horoman massif

    Ota, T, Watanabe, M, Lalindra V, Ranaweera, L. V, Moriguti, T, Kobayashi, K, Tanaka, R, Nakamura, E

    MISASA Internationa Symposium VI  2016年3月8日 

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    記述言語:英語   会議種別:シンポジウム・ワークショップ パネル(公募)  

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  • Processes after equilibration on Asteroid inferred from Ureilites

    Debarati Das, Tak Kunihiro, Ryoji Tanaka, Takuya Moriguti, Nakamura E

    MISASA International Symposium V  2015年3月6日 

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    記述言語:英語   会議種別:シンポジウム・ワークショップ パネル(公募)  

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  • Deep sediment melts contribute to Southwest Japan adakitic magmas

    Feineman, M, Moriguti, T, Yokoyama, T, Nakamura, E

    Goldschimdt Conference 2013  2013年8月25日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Schistes Lustrés-Lago di Cignana HP/UHP Metasedimentary Rocks as a Reference Suite.

    Bebout, G E, Agard, P, Kobayashi, K, Moriguti, T, Nakamura, E

    American Geophysical Union, Fall Meeting 2012  2012年12月3日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Li-O-Pb-Nd-Hf isotope and trace element systematics and S in residual peridotites: Evidences for ancient hydrothermal fluid-rock interactions at mid-ocean ridges

    Ranaweera, L.V, Moriguti, T, Tanaka, R, Makishima, A, Nakamura, E

    Goldschmidt Conference 2011  2011年8月14日 

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    記述言語:英語   会議種別:ポスター発表  

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  • はやぶさ回収試料の初期分析:回収試料個々の記載鉱物岩石学 招待

    辻森 樹, 国広卓也, 小林 桂, 田中亮吏, 森口拓弥, 太田 努, 北川 宙, 坂口千恵, 牧嶋昭夫, 中村栄三, 安部正真, 藤村彰夫, 向井利典

    日本地球惑星科学連合2011年大会  2011年5月26日 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • はやぶさ回収試料の初期分析:地球物質科学的記載@三朝 招待

    中村栄三, 小林 桂, 牧嶋昭夫, 国広卓也, 辻森 樹, 田中亮吏, 森口拓弥, 太田 努, 北川 宙, 坂口千恵, 安部正真, 藤村彰夫, 向井利典

    日本地球惑星科学連合2011年大会  2011年5月26日 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • はやぶさ回収試料の初期分析:回収試料個々の処理・解析法 招待

    小林 桂, 辻森 樹, 国広卓也, 田中亮吏, 森口拓弥, 太田 努, 北川 宙, 坂口千恵, 牧嶋昭夫, 中村栄三, 安部正真, 藤村彰夫, 向井利典

    日本地球惑星科学連合2011年大会  2011年5月26日 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • In-Situ geochemistry of garnet peridotites of Lashaine, Tanazania craton: Re-fertilization in sub-cratonic lithospheric mantle

    Sarbadhikari, B.A, Tsujimori, T, Moriguti, T, Kunihiro, T, Nakamura, E

    Goldschimdt Conference 2010  2010年6月13日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Sr-Nd-Hf-Pb isotopic characteristics of North-Western and Southern Ethiopian lithospheric mantle.

    Melesse, A, Kunihiro, T, Ota, T, Tanaka, R, Moriguti, T, Nakamura, E

    Goldschimdt Conference 2010  2010年6月13日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Andesite magma generation at the Quaternary SW Colombian volcanic arc 招待

    Marín-Cerón, M.I, Moriguti, T, Nakamura, E

    7th International Symposium on Andean Geodynamics  2008年9月2日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Post-entrapment Li isotope fractionation in melt inclusions from Volcán Jorullo, Mexico

    Feineman, M. D, Johnson, E, Wallace, P, Kobayashi, K, Moriguti, T, Nakamura, E

    Goldschimdt Conference 2008  2008年7月13日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Lithium in melt inclusions records crustal assimilation at Volcan Jorullo, Mexico

    Feineman, M. D, Johnson, E, Wallace, P, Kobayashi, K, Moriguti, T, Nakamura, E, Rubin, K

    American Geophysical Union, Fall Meeting 2007  2007年12月10日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Boron-cycling by subducted lithosphere; insights from boron-isotope compositions of the Kokchetav tourmalines

    Ota, T, Kobayashi, K, Moriguti, T, Nakamura, E

    American Geophysical Union, Fall Meeting 2007  2007年12月10日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Large-scale fluid flow in a cold subduction-zone: SIMS Li-isotope study of jadeitite veins in Franciscan metagraywacke

    Tsujimori, T, Moriguti, T, Kunihiro, T, Kobayashi, K, Nakamura, E

    Goldschimdt Conference 2007  2007年8月19日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Major, trace and Pb isotopic systematics: involvement of slab derived fluids and lower continental crust interaction 招待

    Marín-Cerón, M.I, Moriguti, T, Nakamura, E

    SOTA – State of the arc conference, 2007  2007年1月28日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Li and B isotope systematics in crust-mantle recycling 招待

    Moriguti, T, Kobayashi, K, Tanaka, R, Watanabe, R, Nakamura, E

    2nd Internationa Asia-Africa Science Platform Program seminar  2006年12月17日 

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    記述言語:英語   会議種別:シンポジウム・ワークショップ パネル(指名)  

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  • Lithium and Boron Isotope Systematics of Igneous and Metamorphic rocks 招待

    Nakamura, E, Moriguti, T, Kobayashi, K, Tanaka, R, Watanabe, M

    The 2006 Joint Assembly of American Geophysical Union  2006年5月23日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • The behavior of boron in hydrothermal alteration of granites

    Zhao, K.D, Jiang, S.-Y, Nakmaura, E, Moriguti, T, Jiang, Y.-H, Ling, H.-F

    Goldschmidt Conference 2005  2005年5月20日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Sources of magmatism at Daisen volcano, southwest Japan arc

    Feineman, M, Moriguti, T, Nakamura E

    Goldschmidt Conference 2005  2005年5月20日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • King, R.L., Bebout, G.E., Moriguti, T. and Nakamura, E.

    Mélange zones as a, better, sources for the “slab”signature in arcs

    Goldschmidt Conference 2005  2005年5月20日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Boron isotopic variations during hydrothermal alteration of granites 招待

    Zhao, K-D, Jiang, S-Y, Nakamura, E, Moriguti, J-H, Jiang, Y-H, Ling, H-F, J-H. Yang

    COE-21 International Symposium MISASA  2005年3月5日 

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    記述言語:英語   会議種別:ポスター発表  

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  • A major and trace element study of lavas from Daisen Volcano

    Feineman, M, Moriguti, T, Terui, S, Nakamura, E

    COE-21 International Symposium MISASA  2005年3月5日 

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    記述言語:英語   会議種別:ポスター発表  

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  • Evolution of an isotopically depleted spinel rhelzolite xenolith from Salt Lake Crater, and the search for the source of Hawaiian mantle plume: A case study based on the comprehensive geochemical analysis

    Nakamura, E, Sakaguchi, C, Kobayashi, K, Tanaka, R, Moriguti, T, Kushiro, I

    COE-21 International Symposium MISASA  2005年3月5日 

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    記述言語:英語   会議種別:ポスター発表  

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  • Lithium, boron and lead isotope and trace element systematics of basaltic lavas in northeastern Japan: Mineralogical controls on slab-derived fluid composition

    Moriguti, T, Shibata, T, Nakamura, E

    COE-21 International Symposium MISASA  2005年3月5日 

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    記述言語:英語   会議種別:ポスター発表  

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  • Development of high precision Li isotope analysis for olivine with high Resolution Secondary Ion Mass Spectrometery, and its application to the Horoman Peridotite complex: Implications for mantle metasomatism

    Watanabe, M, Kobayashi, K, Moriguti, T, Nakamura, E

    COE-21 International Symposium MISASA  2005年3月5日 

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    記述言語:英語   会議種別:ポスター発表  

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  • Boron isotope geochemistry of tourmaline from granites in South China: An ion microprobe study 招待

    Jiang, S-Y, Zhao, K-D, Nakamura, E, Kobayashi, K, Moriguti, T, Yang, J-H, Jiang, Y-H, Ling, H-F

    COE-21 International Symposium MISASA  2005年3月5日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • 東北日本弧第四紀玄武岩質岩類のリチウム・ホウ素・鉛同位体と微量元素システマティクス

    森口拓弥, 柴田知之, 中村栄三

    日本岩石鉱物鉱床学会2004年度学術講演会  2004年9月22日 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • ハワイ火山岩のオリビンガラス包有物のリチウム・ホウ素・鉛同位体システマティクス

    小林 桂, 田中 亮吏, 森口 拓弥, 清水 健二, 中村 栄三

    日本岩石鉱物鉱床学会2004年学術講演会  2004年9月22日 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • 微量元素およびリチウム・ホウ素・鉛同位体による島弧-沈み込み帯系における物質循環の解明

    森口拓弥, 柴田知之, 中村栄三

    産学官連携フェスティバル2004  2004年3月 

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    記述言語:日本語   会議種別:ポスター発表  

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  • Lithium, boron and lead isotope systematics on glass inclusions in olivine phenocrysts from Hawaiian lavas

    Kobayashi, K, Tanaka, R, Moriguti, T, Shimizu, K, Nakamura, E

    Goldschmidt Conference 2003  2003年9月7日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Geochemistry of melange formation: Identifying contributions from mechanical and metasomatic mixing

    King, R.L, Bebout, G.E, Moriguti, T, Nakamura, E

    Goldschmidt Conference 2003  2003年9月7日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Evolution of an isotopically depleted mantle xenolith from Salt Lake Crater, Hawaii

    Nakamura, E, Sakaguchi, C, Tanaka, R, Moriguti, T, Kushiro, I

    Goldschmidt Conference 2003  2003年9月7日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • Lithium and lead isotopes and trace element systematics of Quaternary basaltic volcanic rocks in Norteastern Japan

    Moriguti, T, Nakamura, E

    Goldschmidt Conference 2003  2003年9月7日 

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    記述言語:英語   会議種別:口頭発表(一般)  

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  • ハワイアンプリューム端成分としてのマントル捕獲岩の発見?

    日本岩石鉱物鉱床学会2002年度学術講演会  2002年 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • Li isotope variation of Koolau volcano, Hawaii

    Moriguti, T, Tanaka, R, Nakamura, E

    日本岩石鉱物鉱床学会2002年度学術講演会  2002年 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • Comprehensive geochemical analyses of extremely small amounts of terrestrial and extraterrestrial materials for sample-return missions

    日本岩石鉱物鉱床学会2001年度学術講演会  2001年 

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  • 高分解能二次イオン質量分析計を用いたリチウム・ホウ素同位体比測定とその応用

    小林 桂, 森口拓弥, 田中亮吏, 清水健二, 中村栄三

    日本岩石鉱物鉱床学会2001年度学術講演会  2001年 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • Li isotope variation in Quaternary basaltic volcanic rocks in northeastern Japan

    Moriguti, T, Nakamura, E

    日本岩石鉱物鉱床学会2001年度学術講演会  2001年 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • 島弧火山岩におけるリチウム・ホウ素・鉛同位体の島弧横断方向の変化と沈み込み帯での地殻-マントル間の物質循環

    森口拓弥, 中村栄三

    地球惑星科学関連学会1998年合同大会  1998年 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • 高精度Li同位体分析方法の開発とその島弧火成作用への適用

    森口拓弥, 中村栄三

    地球惑星科学関連学会1996年合同大会  1996年 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • 泥質変成岩中における雲母のNH4・Rb・Cs含量について

    森口拓弥

    日本地質学会第98年学術大会  1991年 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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  • 筑波変成岩類の雲母類中のアンモニウムについて

    森口拓弥

    日本地質学会第97年学術大会  1990年 

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    記述言語:日本語   会議種別:口頭発表(一般)  

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産業財産権

  • チタン試料中の微量元素を除去する方法

    牧嶋昭夫, 森口拓弥, 中村栄三

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    出願番号:特願2008-105383  出願日:2008年4月15日

    特許番号/登録番号:特許5327837  発行日:2013年8月2日

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担当授業科目

  • 先端地球惑星科学 (2022年度) 後期  - 火5~6

  • 実験地球惑星物理学ゼミナール (2022年度) 通年  - その他

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  • 実験地球惑星物理学演習II (2022年度) 後期  - その他

  • 実験地球惑星物理学演習III (2022年度) 後期  - その他

  • 実験地球惑星物理学特別研究 (2022年度) 通年  - その他

  • 先端地球惑星科学 (2021年度) 後期  - 火5~6

  • 実験地球惑星物理学ゼミナール (2021年度) その他  - その他

  • 実験地球惑星物理学ゼミナール (2021年度) 通年  - その他

  • 実験地球惑星物理学演習I (2021年度) 前期  - その他

  • 実験地球惑星物理学演習II (2021年度) 後期  - その他

  • 実験地球惑星物理学演習III (2021年度) 後期  - その他

  • 実験地球惑星物理学特別研究 (2021年度) その他  - その他

  • 実験地球惑星物理学特別研究 (2021年度) 通年  - その他

  • メルト中の揮発性物質 (2020年度) 特別  - その他

  • 分析地球惑星化学ゼミナール (2020年度) その他  - その他

  • 分析地球惑星化学ゼミナール (2020年度) 通年  - その他

  • 分析地球惑星化学演習I (2020年度) 前期  - その他

  • 分析地球惑星化学演習II (2020年度) 後期  - その他

  • 分析地球惑星化学演習III (2020年度) 後期  - その他

  • 分析地球惑星化学特別研究 (2020年度) その他  - その他

  • 分析地球惑星化学特別研究 (2020年度) 通年  - その他

  • 安定同位体宇宙化学 (2020年度) 後期  - その他

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