Kazuhito Ozawa

Profile Information

Affiliation: Professor, Graduate School of Science, Department of Earth and Planetary Science, Solid Earth Science, The University of Tokyo

Degree: (BLANK)

J-GLOBAL ID: 200901033993152769
researchmap Member ID: 1000013924

Research Interests

Research Areas

Natural sciences / Solid earth science /

Papers

The origin of the unique achondrite Northwest Africa 6704: Constraints from petrology, chemistry and Re–Os, O and Ti isotope systematics

Yuki Hibiya, Gregory J. Archer, Ryoji Tanaka, Matthew E. Sanborn, Yuya Sato, Tsuyoshi Iizuka, Kazuhito Ozawa, Richard J. Walker, Akira Yamaguchi, Qing-Zhu Yin …

Geochimica et Cosmochimica Acta, 245 597-627, 2018 Peer-reviewed
Three-dimensional Evolution of Melting, Heat and Melt Transfer in Ascending Mantle beneath a Fast-spreading Ridge Segment Constrained by Trace Elements in Clinopyroxene from Concordant Dunites and Host Harzburgites of the Oman Ophiolite

Norikatsu Akizawa, Kazuhito Ozawa, Akihiro Tamura, Katsuyoshi Michibayashi, Shoji Arai

JOURNAL OF PETROLOGY, 57(4) 777-814, Apr, 2016 Peer-reviewed
Evolution processes of Ordovician-Devonian arc system in the South-Kitakami Massif and its relevance to the Ordovician ophiolite pulse

Kazuhito Ozawa, Hirokazu Maekawa, Ken Shibata, Yoshihiro Asahara, Masako Yoshikawa

ISLAND ARC, 24(2) 73-118, Jun, 2015 Peer-reviewed
EVAPORATION AND CONDENSATION KINETICS OF CORUNDUM: THE ORIGIN OF THE 13 mu m FEATURE OF OXYGEN-RICH AGB STARS

Aki Takigawa, Shogo Tachibana, Hiroko Nagahara, Kazuhito Ozawa

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 218(1), May, 2015 Peer-reviewed
Progressive Interaction between Dry and Wet Mantle during High-temperature Diapiric Upwelling: Constraints from Cenozoic Kita-Matsuura Intraplate Basalt Province, Northwestern Kyushu, Japan

Tetsuya Sakuyama, Shun'ichi Nakai, Masako Yoshikawa, Tomoyuki Shibata, Kazuhito Ozawa

JOURNAL OF PETROLOGY, 55(6) 1083-1128, Jun, 2014 Peer-reviewed
Melting of the Uppermost Metasomatized Asthenosphere Triggered by Fluid Fluxing from Ancient Subducted Sediment: Constraints from the Quaternary Basalt Lavas at Chugaryeong Volcano, Korea

Tetsuya Sakuyama, Shinji Nagaoka, Takashi Miyazaki, Qing Chang, Toshiro Takahashi, Yuka Hirahara, Ryoko Senda, Tetsumaru Itaya, Jun'ichi Kimura, Kazuhito Ozawa

JOURNAL OF PETROLOGY, 55(3) 499-528, Mar, 2014 Peer-reviewed
Composition of the lunar magma ocean constrained by the conditions for the crust formation

R. Sakai, H. Nagahara, K. Ozawa, S. Tachibana

ICARUS, 229 45-56, Feb, 2014 Peer-reviewed
Isochemical breakdown of garnet in orogenic garnet peridotite and its implication to reaction kinetics

Masaaki Obata, Kazuhito Ozawa, Kosuke Naemura, Akira Miyake

MINERALOGY AND PETROLOGY, 107(6) 881-895, Dec, 2013 Peer-reviewed
Interdiffusion of Mg-Fe in olivine at 1,400-1,600 A degrees C and 1 atm total pressure

Shogo Tachibana, Shinnosuke Tamada, Haruka Kawasaki, Kazuhito Ozawa, Hiroko Nagahara

PHYSICS AND CHEMISTRY OF MINERALS, 40(6) 511-519, Jun, 2013 Peer-reviewed
Geochemical and Os isotopic characteristics of a fresh harzburgite in the Hayachine-Miyamori ophiolite: Evidence for melting under influx of carbonate-rich silicate melt in an infant arc environment

Masako Yoshikawa, Katsuhiko Suzuki, Tomoyuki Shibata, Kazuhito Ozawa

JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES, 107(6) 250-255, Dec, 2012 Peer-reviewed
The role of exchange reactions in oxygen isotope fractionation during CAI and chondrule formation

Hiroko Nagahara, Kazuhito Ozawa

METEORITICS & PLANETARY SCIENCE, 47(7) 1209-1228, Jul, 2012 Peer-reviewed
Spinel formation experiment under vacuum condition : implication for the origin of presolar spinel

Harada M., Takigawa A., Tachibana S., Nagahara H., Ozawa K.

Planetary People, 21(2) 160-167, 2012 Peer-reviewed
Kinetics of evaporation of forsterite in vacuum

Kazuhito Ozawa, Hiroko Nagahara, Masana Morioka, Naoko Matsumoto, Ian D. Hutcheon, Takaaki Noguchi, Hiroyuki Kagi

AMERICAN MINERALOGIST, 97(1) 80-99, Jan, 2012 Peer-reviewed
Cooperation of upper and lower boundary-layer fractionations in a sheet-like intrusion: Composition and microstructure of the Aosawa dolerite sill in Yamagata Prefecture, northeastern Japan

Yushi Takada, Kazuhito Ozawa

JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES, 106(6) 277-298, Dec, 2011 Peer-reviewed
Magmatic Fractionation by Compositional Convection in a Sheet-like Magma Body: Constraints from the Nosappumisaki Intrusion, Northern Japan

Rayko Simura, Kazuhito Ozawa

JOURNAL OF PETROLOGY, 52(10) 1887-1925, Oct, 2011 Peer-reviewed
KINETIC CONDENSATION AND EVAPORATION OF METALLIC IRON AND IMPLICATIONS FOR METALLIC IRON DUST FORMATION

Shogo Tachibana, Hiroko Nagahara, Kazuhito Ozawa, Youhei Ikeda, Ryuichi Nomura, Keisuke Tatsumi, Yui Joh

ASTROPHYSICAL JOURNAL, 736(1), Jul, 2011 Peer-reviewed
Topotaxic relationships between spinel and pyroxene in kelyphite after garnet in mantle-derived peridotites and their implications to reaction mechanism and kinetics

Masaaki Obata, Kazuhito Ozawa

MINERALOGY AND PETROLOGY, 101(3-4) 217-224, Mar, 2011 Peer-reviewed
月地殻形成条件を用いたマグマオーシャン化学組成制約への試み

酒井理沙, 久城育夫, 永原裕子, 小澤一仁, 橘省吾

日本惑星科学会誌, 19 82-88, 2010 Peer-reviewed
コランダム成長異方性を用いた星周ダスト形成条件の推定

瀧川晶, 橘省吾, 永原裕子, 小澤一仁, 宮田隆

日本惑星科学会誌, 19 148-156, 2010 Peer-reviewed
Progressive Melt Extraction from Upwelling Mantle Constrained by the Kita-Matsuura Basalts in NW Kyushu, SW Japan

Tetsuya Sakuyama, Kazuhito Ozawa, Hirochika Sumino, Keisuke Nagao

JOURNAL OF PETROLOGY, 50(4) 725-779, Apr, 2009 Peer-reviewed

Misc.

スピネルカンラン岩捕獲岩の圧力推定の現状, 問題点, 解決策：リソスフェア-アセノスフェア境界域のダイナミクスの理解に向けて

小澤一仁, 佐藤侑人, 成田冴理

地質学雑誌, 124 575-592, 2018 Peer-reviewedInvited
岩手県早池峰ー宮守オフィオライトカンラン岩の構造岩石学的特徴,

長谷川汰河, 道林克禎, 小澤一仁

静岡大学地球科学研究報告, 44 31-468, 2017
オルドビス紀−デボン紀島弧系の復元と発達過程：岩手県早池峰宮守オフィオライトと母体高圧変成岩類

澤一仁, 前川寛和, 石渡明

地質学雑誌補遺, 119 134-153, 2013
マントル科学研究の最近の動向—特に再肥沃化，レオロジー，オフィオライト問題：第5回国際レルゾライト会議報告

森下知晃, 小澤一仁, 小畑正明

岩石鉱物科学, 39 85-103, 2010
地球物質情報に基づく地球熱史解明：到達点の概観と今後の展開

小澤一仁, 永原裕子

岩石鉱物科学, 39 85-103, 2010 Peer-reviewedInvited
スピネル：上部マントルかんらん岩の変形指標

鈴木彩子, 安田敦, 小澤一仁

月刊地球, 30 55-60, 2008
単斜輝石から読み解くマントルかんらん岩の変形履歴

上條裕久, 小澤一仁, 金川久一

月刊地球, 30 78-85, 2008
海洋モホ面形成におけるダナイトの役割

小澤一仁

地学雑誌, 117 146-167, 2008
ダイアピル状上昇マントルの融解履歴九州北西部、北松浦玄武岩の時間空間変化による制約

柵山徹也, 中井俊一, 小澤一仁

月刊地球, 29 588-596, 2007
島弧火山岩主成分組成から推定する島弧下マントルでのマグマ発生条件 —H2O量，温度，圧力—

荻津達, 小澤一仁

月刊地球, 29(1) 33-40, 2007
上部マントルにおけるマグマの形成過程：マントル物質科学における近年の展開

小澤一仁

地学雑誌, 114 385-409, 2005 Peer-reviewedInvited
Primary silicate mineral chemistry of a 1.5-kim section of very slow spreading lower oceanic crust: ODP Hole 735B, Southwest Indian Ridge

Dick, H. J. B, Ozawa, K, Meyer, P. S, Niu, Y, Robinson, P. T, Constantin, M, Hevert, R, Maeda, J, Natland, J. H …

Proceedings of the Ocean Drilling Program, Scientific Results, 176(10) Ms 176SR-001, 2001
非静水圧場におけるスピネル中の非等方拡散−化学的微細構造から岩石形成史を読みとる

小澤一仁

月刊地球, 13 303-311, 1991
Textural and mineralogical variations in gabbroic rocks from Hole 735B,

Bloomer, S. H, Meyer, P. S, Dick, H. J. B, Ozawa, K, Natland, J

Proc. Ocean Drilling Program, Scientific Results, 118 21-40, 1991 Peer-reviewed
Mineralogy and textures of iron-titanium oxide gabbros and associated olivine gabbros from Hole 735B

Ozawa, K, Meyer, P. S, Bloomer, S

Proc. Ocean Drilling Program, Scientific Results, 118 41-73, 1991 Peer-reviewed
マントルにおけるメルトの分離過程

小澤一仁

月刊地球, 12 665-674, 1990
海洋底形成論と拡大速度

小澤一仁, 川幡穂高, 中西正男

科学, 60 661-669, 1990
Petrology of aluminous spinel peridotites and pyroxenites of the Miyamori ultramafic complex, northeast Japan

OZAWA Kazuhito

J. Fac. Sci. Univ. Tokyo, Sec. II, 21 309-332, 1987 Peer-reviewed
Partitioning of elements between constituent minerals in peridotites from the Miyamori ultramafic complex, Kitakami Mountains, northeast Japan: Estimation of P-T condition and igneous composition of minerals

OZAWA Kazuhito

J. Fac. Sci. Univ. Tokyo, Sec. II, 21 19-24, 1986 Peer-reviewed
超苦鉄質岩から見た海嶺下の上部マントル

小澤一仁

月刊地球, 8 476-479, 1986

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