研究者詳細 - 石川　正弘

論文 - 石川　正弘

件数 73 件

Nd isotopic evolution of Archean tonalitic-granodioritic rocks of the Napier Complex, East Antarctica

Satoko SUZUKI, Tomokazu HOKADA, Masahiro ISHIKAWA, Takuji HAMAMOTO

Journal of Mineralogical and Petrological Sciences 118 2023年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）単著

Zircon geochronology of high-grade metamorphic rocks from outcrops along the Prince Olav Coast, East Antarctica: Implications for multi-thermal events and regional correlations

Ippei Kitano, Tomokazu Hokada, Sotaro Baba, Atsushi Kamei, Yoichi Motoyoshi, Prayath Nantasin, Nugr … 全著者表示

Journal of Mineralogical and Petrological Sciences 2023年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）単著

Brine Infiltration in the Middle to Lower Crust in a Collision Zone: Mass Transfer and Microtexture Development Through Wet Grain–Boundary Diffusion

Higashino, F., Kawakami, T., Tsuchiya, N., Satish-Kumar, M., Ishikawa, M., Grantham, G.H., Sakata, … 全著者表示

Journal of Petrology 60 329 - 358 2019年2月 [査読有り]

DOI

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Brine-induced microtexture formation in upper amphibolite to granulite facies lower crust is investigated using a garnet–hornblende (Grt-Hbl) selvage developed along a planar crack discordantly cutting the gneissic structure of an orthopyroxene-bearing gneiss (central Sør Rondane Mountains, East Antarctica). The Cl contents of hornblende and biotite, K contents of hornblende and the thickness of relatively Na-rich rims of plagioclase decrease with distance from the center of the Grt–Hbl selvage (inferred position of the crack). Biotite and hornblende arrangement defining the gneissic structure can be traced into the selvage, suggesting that the wall-rock was overprinted by the selvage formation. Addition and loss of elements to the wall-rock was examined using Zr as an immobile element. Trace elements that tend to be mobile in brines rather than in melts are added to the wall-rock, indicating that the Grt–Hbl selvage was formed by the advection of NaCl–KCl brine into a thin crack. Plagioclase in the wall-rock shows a discontinuous drop of anorthite content at the rim, indicating that coupled dissolution–reprecipitation took place and the grain boundaries were once wet. Trace element concentrations in the wall-rock minerals decrease with distance from the crack, and, in most cases show exponentially decreasing/increasing profiles depending on the elements. These profiles are best modelled by a diffusion equation, suggesting that the wet grain–boundary diffusion in the wall-rock minerals controlled the observed mass transfer and resulted in dissolution–reprecipitation of mineral rims.

その他リンク： https://academic.oup.com/petrology/article-abstract/60/2/329/5253185?redirectedFrom=fulltext

最大1.0GPa、800℃条件下における曹灰長石多結晶体の弾性波速度測定

本多聡子, 石川正弘

日本鉱物科学会年会講演要旨集 2018 ( 0 ) 2018年

DOI

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：一般社団法人日本鉱物科学会共著

Plagioclase is a major constituent mineral in the Earth's crust. We prepared the samples of polycrystalline labradorite and measured compressional wave velocities (Vp) and shear (Vs) wave velocities. Ultrasonic measurements on these samples were conducted up to 1.0 GPa in a temperature range of 25-800°C in a piston cylinder apparatus.

その他リンク： https://ci.nii.ac.jp/naid/130007786200

高温変成作用下における塩水流入時の物質移動・鉱物組成変化プロセス

東野文子, 河上哲生, 土屋範芳, サティシュクマール, 石川正弘, グランサムジェフ, 坂田周平, 平田岳史

日本地質学会学術大会講演要旨 2018 ( 0 ) 2018年

DOI

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：一般社団法人日本地質学会共著

【災害のためプログラム中止】平成30年北海道胆振東部地震により学術大会のプログラムが大幅に中止となりました．中止となったプログラムの講演要旨については，著者のプライオリティ保護の見地からJ-STAGEに公開し，引用可能とします．ただし，学術大会においては専門家による議論には供されていませんので「災害のためプログラム中止」との文言を付記します．（日本地質学会行事委員会）

その他リンク： https://ci.nii.ac.jp/naid/130007690610

Sintering polycrystalline olivine and polycrystalline clinopyroxene containing trace amount of graphite from natural crystals

Tsubokawa, Y. Ishikawa, M.

Earth, Planets and Space 69 2017年9月 [査読有り]

DOI Web of Science

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 HEIDELBERG 共著

岩石の弾性波速度に基づく島弧地殻深部及び最上部マントルの構成岩石の推定：伊豆弧と東北本州弧

石川正弘

地質学雑誌 123 ( 6 ) 355 - 364 2017年6月 [査読有り] [招待有り]

DOI

記述言語：日本語掲載種別：研究論文（学術雑誌）単著

その他リンク： https://www.jstage.jst.go.jp/article/geosoc/123/6/123_2017.0027/_article

Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains)

Kawakami, T. Higashino, F. Skrzypek, E. Satish-Kumar, M. Grantham, G. Tsuchiya, N. Ishikawa, M. Sak … 全著者表示

Lithos 274 73 - 92 2017年3月 [査読有り]

DOI Web of Science

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 共著

Pressure-temperature-time path of a metapelite from Mefjell, Sør Rondane Mountains, East Antarctica

Tsubokawa, Y. Ishikawa, M. Kawakami, T. Hokada, T. Satish-Kumar, M. Tsuchiya, N. Grantham, G.H.

Journal of Mineralogical and Petrological Sciences 112 ( 2 ) 77 - 87 2017年2月 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：JAPAN ASSOC MINERALOGICAL SCIENCES 共著

その他リンク： https://www.jstage.jst.go.jp/article/jmps/112/2/112_160919/_article

Sintering nanocrystalline diopside from pulverized diopside crystals

Tsubokawa, Y. Ishikawa, M.

Journal of Mineralogical and Petrological Sciences 112 ( 3 ) 127 - 131 2017年 [査読有り]

DOI

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Laboratory measurements of Vp and Vs in a porosity-developed crustal rock: Experimental investigation into the effects of porosity at deep crustal pressures

Saito, S., Ishikawa, M., Arima, M. and Tatsumi, Y.

Tectonophysics 677 218 - 226 2016年5月 [査読有り]

DOI Web of Science

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 共著

High pressure Vp and Vs measurements of thermally cracked rock.
Microcracks lower measured Vp, Vs, Vp/Vs and Poasson's ratio of rocks.
Quantitative evaluation of the effect of microcracks on elastic properties.
New constraints for petrological interpretation on the seismic velocity structure of IBM arc.

その他リンク： http://www.sciencedirect.com/science/article/pii/S0040195116300440

Sr and Nd Isotopic evidence in metacarbonate rocks for an extinct Island arc–ocean system in East Antarctica

Otsuji, N., Satish-Kumar, M., Kamei, A., Takazawa, E., Tsuchiya, N., Grantham, G. H., Kawakami, T., … 全著者表示

Journal of Mineralogical and Petrological Sciences 111 ( 3 ) 170 - 180 2016年 [査読有り]

DOI

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：一般社団法人　日本鉱物科学会共著

その他リンク： https://www.jstage.jst.go.jp/article/jmps/111/3/111_151029a/_article

丹沢山地の地質：伊豆衝突帯のジオダイナミクス

石川正弘, 谷健一郎, 桑谷立, 金丸龍夫, 小林健太

地質学雑誌 122 ( 7 ) 291 - 304 2016年 [査読有り]

DOI

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：一般社団法人日本地質学会共著

その他リンク： https://www.jstage.jst.go.jp/article/geosoc/122/7/122_2016.0030/_article/-char/ja/

Geochemical behavior of zirconium during Cl-rich fluid or melt infiltration under upper amphibolite facies metamorphism - A case study from Brattnipene, Sør Rondane Mountains, East Antarctica

Fumiko Higashino ; Tetsuo Kawakami ; Noriyoshi Tsuchiya ; M. Satish-Kumar ; Masahiro Ishikawa ; Geo … 全著者表示

Journal of Mineralogical and Petrological Sciences 110 ( 4 ) 166 - 178 2015年8月 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：JAPAN ASSOC MINERALOGICAL SCIENCES 共著

Crustal assembly of the Antananarivo and Masora domains, central-eastern Madagascar: Constraints from U-Pb zircon geochronology and whole-rock geochemistry of meta-granitoids

Takashi Ichiki ; Masahiro Ishikawa ; Jun Ichi Kimura ; Ryoko Senda ; Raymond Rakotondrazafy

Journal of Mineralogical and Petrological Sciences 110 ( 3 ) 111 - 125 2015年6月 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：JAPAN ASSOC MINERALOGICAL SCIENCES 共著

Laboratory measurements of porosity-free intrinsic Vp and Vs in an olivine gabbro of the Oman ophiolite: Implication for interpretation of the seismic structure of lower oceanic crust.

Satoshi Saito ; Masahiro Ishikawa ; Makoto Arima ; Yoshiyuki Tatsu

Island Arc 24 ( 2 ) 131–144 2015年6月 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：WILEY-BLACKWELL 共著

北上山地下の珪長質下部地殻と斜方輝石岩マントル: 白亜紀スラブメルティングの証拠

石川正弘, 松原誠, 武田哲也

岩石鉱物科学 43 ( 3 ) 100 - 107 2014年5月 [査読有り]

DOI

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：日本鉱物科学会共著

その他リンク： https://www.jstage.jst.go.jp/article/gkk/advpub/0/advpub_140120/_article/-char/ja/

Supercooled melt inclusions in lower-crustal granulites as a consequence of rapid exhumation by channel flow

Yoshikuni Hiroi, Ayahiko Yanagi, Mutsumi Kato, Tomoyuki Kobayashi, Bernard Prame, Tomokazu Hokada, … 全著者表示

Gondwana Research 25 ( 1 ) 226 - 234 2014年1月 [査読有り]

DOI Web of Science

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 共著

Highlights
•First finding of dendritic quartz, feldspar and orthopyroxene in granulites
•Preservation of fine far-from-equilibrium growth textures indicating rapid cooling
•Granulites can ascend along high-strain zones as fast as some felsic magmas.

その他リンク： http://www.journals.elsevier.com/gondwana-research

Sinistral transpressional and extensional tectonics in Dronning Maud Land, East Antarctica, including the Sør Rondane Mountains

Tsuyoshi Toyoshima, Yasuhito Osanai, Sotaro Baba, Tomokazu Hokada, Nobuhiko Nakano, Tatsuro Adachi, … 全著者表示

Precambrian Research 2013年 [査読有り]

Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

We make a form-line contour map of the Sør Rondane Mountains (SRMs).
•In the SRMs, the further southwards one goes the lower the rocks are structurally.
•Extensional tectonics occurred before the Pan-African event.
•Coastline-parallel upright folds support a sinistral transpressional collision.
•Parallel dyke swarms of granitic pegmatite resulted from extension related to dextral shearing.

Comparison of the metamorphic history of the Monapo Complex, northern Mozambique and Balchenfjella and Austhamaren areas, Sør Rondane, Antarctica: Implications for the Kuunga Orogeny and the amalgamation of N and S. Gondwana

Grantham, G., Macey, P.H., Horie, K., Kawakami, T., Ishikawa, M., Satish-Kumar, M., Tsuchiya, N., G … 全著者表示

Precambrian Research 2013年 [査読有り]

Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Late-Tonian to early-Cryogenian apparent depositional ages for metacarbonate rocks from the Sør Rondane Mountains, East Antarctica

Otsuji, N., Satish-Kumar, M., Kamei, A., Tsuchiya, N., Kawakami, T., Ishikawa, M., Grantham, G.H.

Precambrian Research 2013年 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Highlights
► First report on apparent depositional age for Sor Rondane metacarbonate rocks. ► Effective methodology for extracting pre-metamorphic Sr isotope ratios. ► Identification of continental platform surrounding Sor Rondane Mountains.

その他リンク： http://www.journals.elsevier.com/precambrian-research

Chlorine-rich fluid or melt activity during granulite facies metamorphism in the Late Proterozoic to Cambrian continental collision zone-An example from the Sør Rondane Mountains, East Antarctica

Higashino, F., Kawakami, T., Satish-Kumar, M., Ishikawa, M., Maki, K., Tsuchiya, N., Grantham, G.H. … 全著者表示

Precambrian Research 2013年 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Highlights
► Cl-rich fluid or melt activity under near peak metamorphism at ca. 800 °C and 0.8 GPa. ► Field distribution of Cl-rich fluid/melt activity in 603Ma continental collision zone. ► Cl-rich fluid or melt activity observed near the shear zones and mobility of Zr in it.

その他リンク： http://www.journals.elsevier.com/precambrian-research

Late Neoproterozoic extensional detachment in eastern Sør Rondane Mountains, East Antarctica: Implications for the collapse of the East African Antarctic Orogen

Masahiro Ishikawa, Tetsuo Kawakami, M. Satish-Kumar, Geoffrey H. Grantham, Yuichi Hokazono, Megumi … 全著者表示

Precambrian Research 2013年 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Highlights
•First finding of extensional detachment fault in Sør Rondane Mountains (SRM).
•High-density, mafic- and ultramafic-dominant crust is exposed as a tectonic window.
•Tectonic setting shifted from compression to extension in eastern SRM.
•Extensional collapse model for late Proterozoic tectonics of SRM is proposed.
•The tectonic model of SRM constrains the tectonic history of Gondwana amalgamation.

その他リンク： http://www.journals.elsevier.com/precambrian-research

Evolution of late Cenozoic magmatism and the crust–mantle structure in the NE Japan Arc

Takeyoshi Yoshida, Jun-Ichi Kimura, Ryoichi Yamada, Valerio Acocella, Hiroshi Sato, Dapeng Zhao, Ju … 全著者表示

Geological Society, London, Special Publications 385 2013年 [査読有り]

DOI

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Northward extrusion of the ultrahigh-pressure units in the southern Dabie metamorphic belt, east-central China

Hiroshi Yamamoto, Masaru Terabayashi, Hyugo Okura, Takashi Matsui, Yoshiyuki Kaneko, Masahiro Ishik … 全著者表示

Island Arc 22 51 - 62 2012年 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Simultaneous measurements of compressional wave and shear wave velocities, Poisson's ratio, Vp/Vs under deep crustal pressure and temperature conditions: Example of silicified pelitic schist from Ryoke belt, SW Japan

Matsumoto, Yuki; Ishikawa, Masahiro; Terabayashi, Masaru; Arima, Makoto

Island Arc 19 ( 1 ) 30 - 39 2010年 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

P-wave velocity and anisotropy of lawsonite and epidote blueschists: Constraints on water transportation along subducting oceanic crust

Fujimoto, Y., Kono, Y., Hirajima, T., Ishikawa, M. & Arima, M.

Physics of the Earth and Planetary Interiors 2010年 [査読有り]

Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

その他リンク： http://www.journals.elsevier.com/tectonophysics

島弧地殻の構成岩石モデルの構築

石川正弘

月刊地球 32 367 - 372 2010年

記述言語：日本語掲載種別：研究論文（その他学術会議資料等）単著

Subhorizontal tectonic framework of the Horoman peridotite complex and enveloping crustal rocks, south-central Hokkaido, Japan

Yamamoto, H., Nakamori, N., Terabayashi, M., Rehman, H., Ishikawa,M., Kaneko, Y., Matsui, T.

Island Arc 19 458–469 2010年 [査読有り]

Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

P- and S-wave velocities of the lowermost crustal rocks from the Kohistan arc: Implications for seismic Moho discontinuity attributed to abundant garnet

Kono, Y., Ishikawa, M. Harigane, Y., Michibayashi, K. & Arima

Tectonophysics 467 44 - 54 2009年 [査読有り]

DOI Web of Science

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Laboratory measurements of ultrasonic wave velocities of crustal rocks at high pressures and temperatures: Petrological structure of Izu-Bonin-Mariana arc crust

Masahiro Ishikawa, Makoto Arima

Physics and Chemistry of the Earth's Interior. Crust, Mantle and Core 2009年

記述言語：英語掲載種別：研究論文（学術雑誌）共著

その他リンク： http://link.springer.com/chapter/10.1007%2F978-1-4419-0346-4_8

Temperature derivatives of elastic wave velocities in plagioclase (An(51 +/- 1)) above and below the order-disorder transition temperature

Kono Yoshio, Miyake Akira, Ishikawa Masahiro, Arima Makoto

American Mineralogist 93 ( 4 ) 558 - 564 2008年4月 [査読有り]

DOI

記述言語：英語掲載種別：研究論文（学術雑誌）共著

その他リンク： http://ammin.geoscienceworld.org/content/93/4/558

複合化する自然環境問題と変貌する首都圏の地震災害リスク ―丹沢山地の斜面崩壊の事例―

石川正弘

地質と調査 ( 3 ) 20 - 25 2008年

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：土木春秋社単著

Geodynamic evolution of Mt. Riiser-Larsen, Napier Complex, East Antarctica, with reference to the UHT mineral associations and their reaction relations.

Hokada, T., Motoyoshi, Y., Suzuki, S., Ishikawa, M. and Ishizuka, H.

Geological Society, London, Special Publications 308 255 - 284 2008年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

その他リンク： http://sp.lyellcollection.org/content/308/1/253.abstract

Elastic properties of high-grade metamorphosed igneous rocks from Enderby Land and eastern Dronning Maud Land, Antarctica: evidence for biotite-bearing mafic lower crust.

Ishikawa, M., Shingai, E. & Arima, M.

Geological Society, London, Special Publications 308 183 - 194 2008年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

その他リンク： http://sp.lyellcollection.org/content/308/1/183.abstract

Simultaneous high P-T measurements of ultrasonic compressional and shear wave velocities in Ichino-megata mafic xenoliths: Their bearings on seismic velocity perturbations in lower crust of Northeast Japan arc

Nishimoto, S., Ishikawa, M., Arima, M., Yoshida, T. and Nakajima, J.

Journal of Geophysical Research 113 ( B12 ) B12212 2008年

DOI Web of Science

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 共著

伊豆衝突帯の岩石学的地殻構造と地震テクトニクス

石川　正弘

月刊地球 57 166 - 172 2007年1月

記述言語：日本語掲載種別：研究論文（学術雑誌）単著

Effect of H2O released by dehydration of serpentine and chlorite on compressional wave velocities of peridotites at 1 GPa and up to 1000 degrees C

Kono, Y., Ishikawa, M. & Arima

Physics of the Earth and Planetary Interiors 161 ( 3-4 ) 215 - 223 2007年 [査読有り]

DOI Web of Science

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 共著

On-going orogeny in the outer-arc of the Timor-Tanimbar region, eastern Indonesia

Kaneko, Y., Maruyama, S., Kadarusman, A., Ota, T., Ishikawa, M., Tsujimori, T., Ishikawa, A. & Okam … 全著者表示

Gondwana Research 11 ( 1-2 ) 218 - 233 2007年 [査読有り]

DOI Web of Science

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 共著

Laboratory measurements of P- and S-wave velocities in polycrystalline plagioclase and gabbronorite up to 700 C and 1 GPa:Implications for the low velocity anomaly in the lower crust

Yoshio Kono, Masahiro Ishikawa, Makoto Arima

Geophysical Research Letters 33 ( 15 ) L15314 2006年8月 [査読有り]

DOI Web of Science

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 共著

Laboratory measurement of P-wave velocity in crustal and upper mantle xenoliths from Ichino-megata, NE Japan: ultrabasic hydrous lower crust beneath the NE Honshu arc

Nishimoto, S., Ishikawa, M., Arima, M., Yoshida, T.

Tectonophysics 396 ( 3-4 ) 245 - 259 2005年 [査読有り]

DOI Web of Science

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 共著

Structure and evolution of the East Antarctic lithosphere: Tectonic implications for the development and dispersal of Gondwana

Kanao, M., Ishikawa, M. Yamashita, M. Kaminuma & Brown, L.D.

Gondwana Research 7 31 - 41 2004年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Origins of the lower crustal reflectivity in the Lutzow-Holm Complex, Enderby Land, East Antarctica

Kanao, M. and Ishikawa, M.

Earth Planets Space 56 151 - 162 2004年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Discontinuous change in temperature derivative of Vp in lower crustal rocks

Yoshio Kono, Masahiro Ishikawa, Makoto Arima

Geophysical Research Letters 31 22601 - 22605 2004年

記述言語：英語掲載種別：研究論文（学術雑誌）共著

太古代グラニュライト片麻岩帯の起源

石川　正弘

月刊地球 25 ( 3 ) 201 - 205 2003年3月

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：海洋出版単著

P-wave velocity measurements under high pressure and temperature condition in ultrabasic Ichino-megata xenoliths, NE Japan,

S. Nishimoto, M. Ishikawa, M. Arima & T. Yoshida,

International Union of Geodesy and Geophysics SS03/08A/D - 121 2003年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）共著

Strong decrease in ultrasonic Vp in lower crustal rocks at high temperature

Y. Kono, M. Ishikawa, T. Nakajima, S. R. Khan, & M. Arima,

Eos Trans 84 ( 46 ) T51F - 0212 2003年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）共著

Petrological model of the northern Izu–Bonin–Mariana arc crust:constraints from high-pressure measurements of elastic wave velocities of the Tanzawa plutonic rocks, central Japan

Kitamura, K., Ishikawa, M. & Arima, M.

Tectonophysics 371 213 - 221 2003年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Timing of Himalayan ultrahigh-pressure metamorphism: sinking rate and subduction angle of the Indian continental crust beneath Asia

Kaneko, Y., Katayama, I., Yamamoto, H., Misawa, K., Ishikawa, M., Rehman, H. U., Kausar, A. B. and … 全著者表示

Journal of Metamorphic Geology 21 589 - 599 2003年 [査読有り]

DOI

記述言語：英語掲載種別：研究論文（学術雑誌）共著

その他リンク： http://onlinelibrary.wiley.com/doi/10.1046/j.1525-1314.2003.00466.x/full

パンアフリカン造山帯の下にリソスフェアはあるのか？月刊地球, 288, 480-484

石川　正弘

月刊地球 2003年

記述言語：日本語掲載種別：研究論文（学術雑誌）単著

先カンブリア・クラトンの深部構造―グローバルレビュー

金尾雅紀・石川正弘

月刊地球 288 475 - 479 2003年

記述言語：日本語掲載種別：研究論文（学術雑誌）共著

Geology of the Kokchetav Massif

Kaneko, Y., Maruyama, S., Terabayashi, M., Yamamoto, H., Ishikawa, M., Anma, R., Parkinson, C. D., … 全著者表示

The diamond-bearing Kokchetav Massif, Kazakhstan. Universal Academy Press Inc. Tokyo. 47 - 70 2002年

記述言語：英語掲載種別：研究論文（学術雑誌）共著

パンアフリカン造山帯の構造と衝突テクトニクス－ゴンドワナ超大陸トランセクトの意義

石川正弘・金尾政紀

地震研究所彙報 77 287 - 302 2002年 [査読有り]

記述言語：日本語掲載種別：研究論文（学術雑誌）共著

Subhorizontal structure and kinematic evolution of HP-UHP metamorphic rocks in the central Kokchetav massif

Yamamoto, H., Ishikawa, M., Arima, R. & Kaneko, Y.,

The diamond-bearing Kokchetav Massif, Kazakhstan.In: edited by C. D. Parkinson, Universal Academy Press Inc. Tokyo. 71 - 92 2002年

記述言語：英語掲載種別：研究論文（学術雑誌）共著

P-wave velocity in ultrahigh temperature granulites from the Archean Napier Complex, East Antarctica

E. Shingai, M. Ishikawa & M Arima

Polar Geoscience ( 14 ) 165 - 179 2001年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

P-wave velocities (Vp) in ultra-high temperature granulites (UHT) were measured up to 1.0 Gpa from 25°C to 400°C with a piston-cylinder-type high-pressure apparatus. Rocks measured are meta-igneous UHT rocks collected from Mount Riiser-Larsen, Amundsen Bay, Napier Complex. Core rock samples 14 mm in diameter and 12 mm long were subjected to high-pressure experiments. All rocks show a rapid increase of Vp at low pressure up to 0.5 Gpa and nearly constant Vp at higher pressures. The Vp values measured at 1.0 Gpa and 400°C are 7.17 km/s for a metapyroxenite, 6.93 km/s, 6.88 km/s for mafic granulites and 6.17 km/s for an orthopyroxene felsic gneiss. A well-defined correlation exists between Vp and the SiO_2 content of the rocks, which is expressed as Vp (km/s)=-0.051SiO_2+9.85 at 1.0 Gpa and 25℃. The Vp values measured for the Napier mafic granulites are comparable to those of the Mizuho lower crustal layer (6.95 km/s of Vp at depth from 33 to 40 km; A. Ikami et al, Mem. Natl Inst. Polar Res., Ser. C, 15, 69, 1984). The present results suggest that the lower crust in the Mizuho Plateau is probably composed of mafic granulites (garnet-free) rather than garnet-bearing rocks. The higher pressure in Liitzow-Holm Complex overlie the lower pressure rocks (Napier Complex). The double-thickened crustal model in which peak metamorphic pressure increases with depth can't explain the inversion of metamorphic pressure across the crust. We suggest that the Liitzow-Holm Complex was exhumed tectonically upon the Napier Complex after the Pan-African continental collision between the Napier Complex and Dronning Maud Land.

Laboratory measurements of P-wave velocity of granulites from Lutzow-Holm Complex, East Antarctica: Preliminary report

K. Kitamura, M, Ishikawa, M. Arima & K. Shiraishi

Polar Geoscience 14 180 - 194 2001年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

南極大陸地殻物質の高圧地震波速度測定実験

石川正弘, 新開英介, 有馬眞,

月刊地球 35 70 - 76 2001年

記述言語：日本語掲載種別：研究論文（学術雑誌）共著

Crustal structures of Island arcs: high pressure measurements of P-wave velocities

M. Ishikawa and M. Arima,

EOS, Trans 81 ( 22 ) 179 2000年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）共著

海洋性島弧地殻構造と花闇岩質マグマの起源

有馬眞, 石川正弘, 北村圭吾

月刊地球 30 52 - 56 2000年

記述言語：日本語掲載種別：研究論文（学術雑誌）共著

Subhorizontal boundary between ultrahigh-pressure and low-pressure metamorphic units in the Sulu-Tjube area of the Kokchetav massif, Kazakhstan

M. Ishikawa, Y. Kaneko, R. Anma & H. Yamamoto

The Island Arc 9 317 - 327 2000年

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Kinematic analysis of UHP-HP metamorphic rocks in Chaglinka-Kulet area of the Kokchetav massif, Kazakhstan

H. Yamamoto, M. Ishikawa, R. Anma & Y. Kaneko

Island Arc 9 304 - 316 2000年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Geology of the Kokchetav UHP-HP metamorphic belt, northern Kazakhstan

Y. Kaneko. S. Maruyama, M. Terabayashi, H. Yamamoto, M. Ishikawa, R. Anma, C. D. Parkinson T. Ota Y … 全著者表示

Island Arc 9 259 - 263 2000年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Geochemical study of granulites from Mt. Riiser-Larsen, Enderby Land, East Antarctica: Implication for Protoliths of the Achaean Napier Complex

S. Suzuki. T. Hokada. M. Ishikawa & H. Ishizuka

Polar Geoscience ( 12 ) 101 - 125 1999年

記述言語：英語掲載種別：研究論文（学術雑誌）共著

The Mt. Riiser-Larsen area of the Napier Complex, East Antarctica, is underlain by various kinds of ultrahigh-temperature (UHT) metamorphic rocks such as orthopyroxene felsic gneiss, garnet felsic gneiss, garnet-sillimanite gneiss, mafic gneiss and meta-ultramafic rocks. On the basis of the mode of occurrence and petrography, the garnet felsic gneisses are further divided into garnet felsic gneiss I (garnet-poor type) and II (garnet-rich type), the mafic gneisses into quartz-free and -bearing types, and the metaultramafic rocks into phlogopite-free and -bearing types. Bulk rock chemical analyses for the major, minor and rare earth elements (REEs) demonstrate that (1) both the garnetsillimanite gneiss and garnet felsic gneiss II are of sedimentary origin such as mudstone and sandstone, respectively, and (2) other rocks are of igneous origin, as follows: i) the orthopyroxene felsic gneiss and garnet felsic gneiss I are chemically comparable with CIPW normative tonalite to granodiorite and granite, respectively, of which the former also exhibits a calc-alkaline compositional variation with a REE signature comparable to the Archaean TTG (tonalite-trondhjemite-granodiorite); ii) the quartz-free and quartz-bearing mafic gneisses have been derived from flat or slightly LREE-depleted and LREE-enriched tholeiitic basalts, respectively; iii) phlogopite-free and phlogopite-bearing meta-ultramafic rocks have been derived from depleted mantle peridotites and komatiitic rocks, respectively, of which the latter shows a magmatic compositional variation controlled by addition or subtraction of only olivine. These chemical features reveal that the various kinds of original rocks are intermingled in the Riiser-Larsen area, which is important for understanding the site of development of original rocks in the Napier Complex.

Geology of the Mt. Riiser-Larsen area of the Napier Complex, Enderby Land, East Antarctica

Ishizuka, H., Ishikawa, M., Hokada, T., Suzuki, S.

Polar Geoscience ( 11 ) 154 - 171 1998年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

The summer party of the 38th Japanese Antarctic Research Expedition (1996-97) performed field work in the Mt. Riiser-Larsen area of the Archaean Napier Complex, Enderby Land, East Antarctica. The area is underlain by various kinds of metamorphic rocks and unmetamorphosed intrusive rocks. Of these, the metamorphic rocks are tentatively divided into the layered gneiss series, massive gneiss series, and transitional gneiss series. The layered gneiss series, occurring in the central to northwestern part of the area, is characterized by layering structure composed of several types of garnet felsic gneiss with subordinate amounts of orthopyroxene felsic gneiss, pelitic and mafic gneisses, impure quartzite, and metamorphosed banded iron formation. The massive gneiss series is predominant in the southern to southeastern part and consists mainly of massive orthopyroxene felsic gneiss, in which the layering structure is not conspicuous and the lithology is rather monotonous. The transitional gneiss series is developed between the layered and massive gneiss series, in which metamorphosed anorthosite and ultramafic rocks occur characteristically as thin layers or blocks or pods. Metamorphic foliation, which is almost always parallel to the layering structure, strikes NE-SW to E-W and dips at moderate to gentle angles (20-40°) to the south or southeast. The mineral associations indicate that the majority of the metamorphic rocks could belong to the high temperature granulite facies at metamorphic temperature higher than 1000℃. Unmetamorphosed doleritic intrusive rocks, so-called Amundsen Dikes, intrude throughout the area, striking N-S and NE-SW. Furthermore, there are many shear zones, following preexisting structures such as dike margins, in which the gneisses and dikes have been sheared to mylonites or pseudotachylite-like rocks.

Rock Velocities at Atmospheric Pressure and Room Temperature in Tanzawa Plutonic Rocks from Central Japan

Memoirs of National Institute of Polar Research. Special issue 53 192 - 202 1998年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）単著

The Tanzawa plutonic complex, which is composed mainly of tonalite with minor quartz gabbro and gabbro, is exposed at the northern end of the Izu-Bonin island-arc. It is interpreted as exposed middle crust of the Izu-Bonin arc which was uplifted during the collision of Izu-Bonin arc with the Honshu arc in Japan. Determination of elastic wave velocity in these rocks is crucial to interpret the seismic velocity structure of the Izu-Bonin arc. Compressional-wave (Vp) and shear-wave (Vs) velocities from Tanzawa plutonic rocks were measured at 1 atm and room temperature. The P-wave and S-wave velocities are strongly dependent upon the lithology : gabbro (Vp=4.89-5.44km/s, Vs=2.49-2.86km/s), quartz gabbro (Vp=4.90-4.97km/s, Vs=2.39-2.50km/s), tonalite (Vp=4.25-4.71km/s, Vs=2.40-2.48km/s), granitic aplite (Vp=3.82km/s, Vs=2.11km/s). The Tanzawa plutonic rocks show a positive correlation between elastic-wave velocity and density, and a rough positive correlation between Vp and Vs. Theoretical Voigt-Reuss-Hill average Vp values were also calculated for tonalites, quartz gabbro and gabbros at 1.0 GPa pressure. Theoretical Vp is about 2km/s faster than measured Vp at atmospheric pressure. The measured Vp of plutonic rocks (4.25-5.44km/s) is faster than the refraction-determined P-wave velocity in 2km-thick uppermost crust (2.5-4.0km/s) of the Izu-Bonin island arc, implying that plutonic rocks are not present at 0-2km depth. Theoretical Vp values of tonalite and quartz gabbro are consistent with the velocity structure of middle crust (6.0-6.7km/s velocity). The theoretical Vp of hornblende gabbro (7.0-7.2km/s) can explain the lower crustal P-wave velocity structure (7.1-7.2km/s). The high P-wave velocity (7.2-7.3km/s) in the lowermost crust implies a high content of orthopyroxene (more than 20%).

Metamorphic and structural evolution of granulites from Rundvågshetta, Lützow-Holm Bay, East Antarctica

Motoyoshi, Y., Ishikawa, M

The Antarctic region: geological evolution and processes 65 - 72 1997年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Effects of strain gradients on asymmetry of experimental normal fault systems

Ishikawa, M., Otsuki, K.

Journal of Structural Geology 17 1047 - 1053 1995年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

断層に関する実験研究．理論的には共役な断層系でも，実際地殻に発達する断層系はしばしば一方が卓越して発達する．本研究では，室内で正断層系のモデル実験を行ない，水平歪勾配や水平歪速度の度合いが，断層系の非対称度を規制していることを明らかにした．

その他リンク： http://www.journals.elsevier.com/journal-of-structural-geology

Sapphirine-bearing silica-undersaturated granulites from Forefinger Point, Enderby Land, East Antarctica: Evidence for a clockwise P-T path?

Motoyoshi, Y., Ishikawa, M., Fraser, G. L.

Proceedings of the NIPR Symposium on Antarctic Geosciences ( 8 ) 121 - 129 1995年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）単著

Sapphirine-bearing silica-undersaturated granulites from Forefinger Point in Enderby Land, East Antarctica, preserve a variety of reaction textures suggestive of the prograde segment of the P-T evolution followed by nearly isothermal decompression. The granulites are composed of sapphirine, orthopyroxene, cordierite, garnet, spinel, corundum, K-feldspar, biotite and accessory zircon. Petrographical characteristics are i) spinel and corundum occur only as inclusions in sapphirine, ii) relict cordierite and biotite are included in the corundum, and iii) the sapphirine is locally in direct contact with porphyroblastic garnet, and the garnet is occasionally replaced by symplectitic intergrowth of orthopyroxene+sapphirine+cordierite±biotite. Chemographic relations in the FeO-MgO-Al_2O_3-SiO_2 system (FMAS), textural relations and chemical data indicate a clockwise P-T trajectory with marked decompression following peak conditions.

Reaction textures in granulites from Forefinger Point, Enderby Land, East Antarctica; an alternative interpretation on the metamorphic evolution of the Rayner Complex

Motoyoshi, Y., Ishikawa, M., Fraser, G. L.

Proceedings of the NIPR Symposium on Antarctic Geosciences ( 7 ) 101 - 114 1994年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Aluminous granulites from Forefinger Point in Enderby Land, East Antarctica, preserve a variety of reaction textures which demonstrate a part of the P-T evolution. On the basis of the petrographical evidence, the following reactions are inferred : orthopyroxene+sillimanite+quartz=cordierite, orthopyroxene+sillimanite=cordierite+sapphirine, garnet+quartz=orthopyroxene+cordierite, garnet=orthopyroxene+cordierite+sapphirine. These reactions are visualized on a simplified (Fe, Mg) O-Al_2O_3-SiO_2 diagram, and are interpreted on P-T and P-_<μFeO> diagrams, respectively. The reactions imply nearly isothermal decompression after the peak metamorphic conditions. The prograde segment of the P-T path is inferred by relict spinel and corundum inclusions invariably rimmed by sapphirine in silica-undersaturated granulites. A possible reaction is spinel+corundum+cordierite=sapphirine. The petrogenetic grid for a model FMAS system indicates that the decompressional P-T path passed between two invariant points; [Spl] 11±1 kbar at 1040±15℃, and [Qtz] 8-9 kbar at 950℃. Assuming a constant temperature, a P-_<μFeO> diagram is used to demonstrate that the variety of reactions depends on bulk chemical compositions. Several geothermobarometers, including garnet-orthopyroxene, garnet-orthopyroxene-plagioclase-quartz, garnet-plagioclase-sillimanite-quartz, GRAIL, GRIPS and sapphirine-spinel are applied. The garnet-orthopyroxene and sapphirine-spinel geothermometers yield around 700-850℃, and these values are considerably lower than those inferred from the petrogenetic grid mentioned above. On the basis of the petrographical interpretation and preliminary results of SHRIMP dating (SHIRAISHI, pers. commun.), it is concluded that the Forefinger Point granulites probably do not represent a reworked portion of the Archaean Napier Complex, but rather, they may be the result of Cambrian events in the East Antarctic Shield.

Structural evolution of Rundvågshetta region, Lützow-Holm Bay, East Antarctica

Ishikawa, M., Motoyoshi, Y., Fraser, G. L., Kawasaki, T.

Proceedings of the NIPR Symposium on Antarctic Geosciences ( 7 ) 69 - 89 1994年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

その他リンク： http://ci.nii.ac.jp/els/110001071752.pdf?id=ART0001230550&type=pdf&lang=jp&host=cinii&order_no=&ppv_type=0&lang_sw=&no=1369983290&cp=

Preliminary Report on Structures of Forefinger Point, Enderby Land, East Antarctica

Ishikawa, M., Motoyoshi, Y., Fraser, G. L.

Proceedings of the NIPR Symposium on Antarctic Geosciences ( 7 ) 90 - 100 1994年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

Granulite-facies metamorphic rocks of Forefinger Point, which lie on the Casey Bay coastline in Enderby Land, have been affected by three stages of folding, shear zone formation, and intrusion of pegmatite. The peak metamorphic structural evolution was characterized by the development of Fn isoclinal to close buckling folds. This deformation was associated with the coexistence of orthopyroxene+sillimanite±quartz, and was followed by the formation of cordierite and symplectites of cordierite+sapphirine, orthopyroxene+cordierite+sapphirine in response to subsequent isothermal decompression. These symplectic intergrowths are generally unstrained except in some cordierite domains where cordierite exhibits a weak mineral lineation, implying that intense ductile deformation had ceased before the decompressional reactions : orthopyroxene+sillimanite+quartz=cordierite, orthopyroxene+sillimanite=cordierite+sapphirine, garnet+quartz=orthopyroxene+cordierite. Although the Forefinger Point granulites have undergone high strain deformation under peak metamorphic conditions, they experienced only low and local strain deformation after peak metamorphism. The post-peak-metamorphic structural evolution was characterized by the development of Fn+1> open to gentle buckling folds, narrow shear zones and emplacement of pegmatite.

A preliminary report on cordierite-bearing assemblages from Rundvågshetta, Lützow-Holm Bay, East Antarctica: Evidence for a decompressional P-T path?

Kawasaki, T., Ishikawa, M., Motoyoshi, Y.

Proceedings of the NIPR Symposium on Antarctic Geosciences ( 6 ) 47 - 56 1993年 [査読有り]

記述言語：英語掲載種別：研究論文（学術雑誌）共著

御斎所変成帯の褶曲と左横ずれ塑性剪断変形

石川正弘，大槻憲四郎

地質學雜誌 96 719 - 730 1990年 [査読有り]

記述言語：日本語掲載種別：研究論文（学術雑誌）共著

阿武隈変成帯東部に分布する御斎所変成岩類に関する構造地質学的研究をおこなった．野外地質調査，褶曲構造解析，岩石の変形組織観察，岩石の歪解析を行い，御斎所変成岩類は全体として中生代の左横ずれ塑性剪断帯であることを明らかにした．

その他リンク： http://ci.nii.ac.jp/els/110003024216.pdf?id=ART0003471447&type=pdf&lang=jp&host=cinii&order_no=&ppv_type=0&lang_sw=&no=1369982218&cp=

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