Oyanagi, R.*, Okamoto, A., Harigane, Y., Tsuchiya, N., 2018.
Al-zoning of serpentine aggregates in mesh texture induced by metasomatic replacement reactions.
Journal of Petrology, in press.


Watanabe, N., Kikuchi, T., Ishibashi, T., Tsuchiya, N. (2017)
v-X-type relative permeability curves for steam-water two-phase flows in fractured geothermal resorvoir
[Geothermics, 65, 269-279]

Linking microearthquakes to fracture permeability evolution
[Crustal Permeability, Wiley 49-64 (2017)]
Takuya Ishibashi, Noriaki Watanabe, Hiroshi Asanuma and Noriyoshi Tsuchiya

[日本地熱学会誌39(1), 15-24 (2017)]
最首花恵, 小坂拓也, 土屋範芳, 渡邉則昭

Potentially exploitable supercritical geothermal resources in the ductile crust
[Nature Geoscience (2017)]
NoriakiWatanabe, Tatsuya Numakura, Kiyotoshi Sakaguchi, Hanae Saishu, Atsushi Okamoto,Steven E. Ingebritsen and Noriyoshi Tsuchiya

[日本地熱学会誌 39(1), 25-37 (2017)]
鈴木拓, 宇野正起, 奥村聡, 山田亮一, 土屋範芳

Kameda, J.*, Okamoto, A., Sato, K., Fujimoto, K., Yamaguchi, A., Kimura, G., 2017. Opal-CT in chert beneath the toe of the Tohoku margin and its influence on the seismic aseismic transition in subduction zones. Geophysical Research Letters, 44, 687-693.

Uno, M., Okamoto, A., Tsuchiya, N., 2017. Excess water generation during reaction-inducing intrusion of granitic melts into ultramafic rocks at crustal P-T conditions in the Sør Rondane Mountains of East Antarctica. Lithos

東北地方太平洋沖地震による津波堆積物中のヒ素 (ヒ素の地圏-水圏-生物圏における循環: そのメカニズムから対策まで)
[地球環境 22 (1), 45-52]

Mechanisms of Serpentinization Utilizing Olivine–Plagioclase–H 2 O System under Hydrothermal Conditions
[Procedia Earth and Planetary Science 17, 686-689]
R Oyanagi, A Okamoto, N Tsuchiya

Porosity and Permeability Evolution Induced by Precipitation of Silica under Hydrothermal Conditions
[Procedia Earth and Planetary Science 17, 249-252]
A Okamoto, R Yamada, H Saishu, N Tsuchiya

Geological model of supercritical geothermal reservoir related to subduction system
[EGU General Assembly Conference Abstracts 19, 2461]
N Tsuchiya

[地熱技術 42 (1), 43-52]

Structure of Interfacial Water on Quartz and its Self-diffusion Coefficient Revealed by Molecular Dynamics Simulations
[Procedia Earth and Planetary Science 17, 853-856]
S Ishikawa, N Tsuchiya

In Situ Observation of Critical Phenomena of Multicomponent Geofluids and Seawater by Using Visible-type Autoclave
[Procedia Earth and Planetary Science 17, 296-299]
N Tsuchiya, C Sekiguchi, S Ishikawa, A Okamoto, N Hirano

Geological and Geophysical Perspective of Supercritical Geothermal Energy in Subduction Zone, Northeast Japan
[Procedia Earth and Planetary Science 17, 193-196]
N Tsuchiya, R Yamada

[日本地熱学会誌 39 (1), 101-110]
齋藤遼一, 平野伸夫, 山田亮一, 土屋範芳

Short-lived brine infiltration during upper amphibolite facies metamorphism in the continental collision zone
[EGU General Assembly Conference Abstracts 19, 3741]
F Higashino, T Kawakami, N Tsuchiya, M Satish-Kumar, M Ishikawa, G Grantham, S Sakata, T Hirata

Watanabe N.*, Numakura, T., Sakaguchi, K., Saishu, H., Okamoto, A., Ingebritsen, S., Tsuchiya, N., 2017. Potentially exploitable supercritical geothermal resources in the ductile crust. Nature Geoscience, 10, 140-144.

Kameda, J.*, Okamoto, A., Sato, K., Fujimoto, K., Yamaguchi, A., Kimura, G., 2017. Opal-CT in chert beneath the toe of the Tohoku margin and its influence on the seismic aseismic transition in subduction zones. Geophysical Research Letters, 44, 687-693.

Uno, M. *, Okamoto, A., Tsuchiya, N., 2017. Excess water generation during reaction-inducing intrusion of granitic melts into ultramafic rocks at crustal P-T conditions in the Sør Rondane Mountains of East Antarctica. Lithos, 284-285, 625-641.

 Okamoto, A.*, Shimizu, H., Fukuda, J., Muto, J., Okudaira, T., 2017. Reaction-induced grain boundary cracking and anisotropic fluid flow during prograde devolatilization reactions within subduction zones. Contributions to Mineralogy and Petrology, 182, 75.

 岡本 敦*,桑谷 立, 2017 変成岩組織と鉱物組成累帯構造からの情報抽出.日本地質学雑誌,123, 733-745.

Saishu, H.*, Okamoto, A., Otsubo, M., 2017. Silica precipitation potentially controls earthquake recurrence in seismogenic zones. Scientific Reports, 7, 13337: DOI:10.1038/s41598-017-13597-5.


Okamoto, A.*, Tanaka, H., Watanabe, N., Siashu, H., Tsuchiya, N., 2017. Fluid pocket generation in response to heterogeneous reactivity of a rock fracture under hydrothermal conditions. Geophysical Research Letters, 44, 10306-1031510.1002/2017GL075476.



1. Tsuchiya, N., Yamada, R., Uno, M. (2016)
Supercritical geothermal reservoir revealed by granite-porphyry system. Geothermics, accepted.

2. Burenjargal, U., Okamoto, A., Tsuchiya, N, Uno, M., Horie, K., Hokada, T. (2016)
Contrasting geochemical signatures of Devonian and Permian granitoids from the Tseel terrane, SW Mongolia.
ournal of Geosciences, 61, 51-66.

3. 地熱地域の地殻の透水ー不透水境界と水の状態変化にともなう鉱物析出の関係性
[日本地熱学会誌, 38 (1), 17 -25 (2016)]
最首花恵, 岡本敦, 土屋範芳

4. Underestimation of chromium and zirconium in soils by hydrofluoric acid digestion and induced coupled plasm-mass spectrometry
[Soil Science and Plant Nutrition, 62(2), 121 (2016)]
Shin-ichi Yamasaki, Akira Takeda, Kazuhiro Kimura and Noriyoshi Tsuchiya

5. Contrasting geochemical signatures of Devonian and Permian granitoids from the Tseel Terrane, SW Mongolia 
[Journal of Geosciences 61, 51-66 (2016)]
Ulziiburen Burenjargal, Atsushi Okamoto, Noriyoshi Tsuchiya, Masaoki Uno, Kenji Horie, and Tomokazu Hokada

6. スパースモデリングによる津波堆積物の判別ー津波到達推定への応用ー
[電子情報通信学会誌, 99(5), 418-423 (2016)]
駒井武, 桑谷立, 中村謙吾, 土屋範芳

7. Supercritical geothermal reservoir revealed by a granite–porphyry system
[Geothermics, 63, 182-194 (2016)]
Noriyoshi Tsuchiya, Ryoichi Yamada and Masaoki Uno

8. Linking microearthquakes to fracture permeability
[Geophysical Research (2016)]
Takuya Ishibashi, Noriaki Watanabe, Hiroshi Asanuma, and Noriyoshi Tsuchiya

9. Development of Portable Thermoluminescence Measurement Equipmnet for Geothermal Exploration
[J. Geothermal Research Society of Japan 38(4), 127-131 (2016)]
Noriyoshi Tsuchiya, Hiroaki Ishikawa, Ryoichi Saito and Nobuo Hirano

10. ν-X-type relative permeability curves for steam-water two-phase flows in fractured geothermal reservoirs
[Geothermics 65, 269-279 (2016)]
Noriaki Watanabe, Takuma Kikuchi, Takuya Ishibashi and Noriyoshi Tsuchiya

11. 最首花恵,岡本敦,土屋範芳,2016. 地熱地域の透水-不透水境界と水の状態変化にともなう鉱物析出の関係性.日本地熱学会誌,38巻,1号

12. Burenjargal U.*, Okamoto A., Tsuchiya T., Uno M., Horie K., Hokada T., 2016. Contrasting geochemical signatures of Devonian and Permian granitoids from the Tseel terrane, SW Mongolia. Journal of Geosciences, 61, 51-66.

13. Omori Y, Barresi A, Kimura N, Okamoto A, Masuda T* 2016. Contrast in stress-strain history during exhumation between high- and ultrahigh-pressure metamorphic units in the Western Alps: Microboudinage analysis of piemontite in metacherts. Journal of Structural Geology, 89, 168-180..

14. Hirauchi K-I*, Fukushima K, Kido M, Muto J, Okamoto A. 2016. Reaction-induced rheological weakening enables oceanic plate subduction. Nature Communications, 7, 12550, doi:1038/ncomms12550.

15. Shimizu, H., Okamoto, A.*, 2016. The roles of fluid transport and surface reaction in reaction-induced fracturing, with implications for the development of mesh textures in serpentinites. Contributions to Mineralogy and Petrology, 171, 73. 

16. Omori, T., Kuwatani T, Okamoto A., Hukushima K. (2016) Bayesian inversion analysis of nonlinear dynamics in surface heterogeneous reactions. Physical Review E, 94, 033305, doi: 10.1103/PhysRevE.94.033305.

17. S.Ishikawa, H.Sakuma and N.Tsuchiya
“Self-diffusion of water molecules confined between quartz surfaces at elevated temperatures by molecular dynamics simulations”
[Journal of Mineralogical and Petrological Sciences, 111, 4, 2016]


[配管技術 日本工業出版 57(1), 11 - 15 (2015)]

2.Contrasting fracture patterns indude by volume-increasing and decreasing reactions: implications for the progress of metamorphic reactions.
[Earth and Planetary Science Letters 415, 9 - 18(2015)]

3.Phase-filed modeling of epitaxial growth of polycrystalline quartz veins in hydrothermal experiments
[Geofluid,in press]

4.日本語熱水変質帯の風化岩からのヒ素及び金属元素の溶出挙動に関する実験的検 討
Experimental Study on Dissolution Behaviors of Arsenic and Metals from Rocks and Soils in Hydrothermal Alterration Area
[Journal of the Mining andn Materials Processing Institute of Japan 131(2,3),58 - 64(2015)]
Takaya Hamai,Noriyoshi Tsuchiya,Ryoichi Yamada and Yasumasa Ogawa

[東北自治 81,25-36(2015)]

6.New ν-type relative permeability curves for two-phase flows through subsurface fractures
[Water Resource Research 51,1 - 18(2015)]
Noriaki Watanabe,Keisuke Sakurai,Takuya Ishibashi,Yutaka Ohsaki,Tetsuya Tamagawa,Masahiko Yagi, Noriyoshi Tsuchiya

7.Competitive hydration and dehydration at olivine–quartz boundary revealed by hydrothermal experiments: Implications for silica metasomatism at the crust–mantle boundary
[Earth and Planetary Science Letters 425,44 - 55(2015)]
Ryosuke Oyanagi, Atsushi Okamoto, Nobuo Hirano, and Noriyoshi Tsuchiya

8.Redox conditions in the end-Early Triassic Panthalassa
[Palaeogeography,Palaeoclimatology,Palaeoecology 432,15 - 28(2015)]
Satoshi Takahashi, Shin-ichi Yamasaki, Kazuhiro Ogawa, Kunio Kaiho, and Noriyoshi Tsuchiya

9.Beyond-laboratory-scale prediction for channeling flows through subsurface rock fractures with heterogeneous aperture distributions revealed by laboratory evaluation
[J.Geophysical Reserch: Solid Earth 120(1),106 - 124(2015)]
Takuya Ishibashi, Noriaki Watanabe, Nobuo Hirano, Atsushi Okamoto and Noriyoshi Tsuchiya

10. Bromine and iodine in Japanese soils determined with polarizing energy dispersive X-ray fluorescence spectrometry.
[Soil Science and Plant Nutrition61, 751-760 (2015)]
Yamasaki S, Takeda A, Watanabe T, Tagaki K, Uchida S, Takada H, Matsunami Y, Kihou N, Tsuchiya N

11. Uno, M., Iwamori, H., Toriumi, M. (2015)
Transition from dehydration to hydration during exhumation of the Sanbagawa metamorphic belt, Japan, revealed by the continuous P-T path recorded in garnet and amphibole zoning.
Contrib. to Mineral. Petrol. 170, 33, doi:10.1007/s00410-015-1185-9. 

12. Kameda, J., Harris, R.N., Shimizu, M., Ujiie, K., Tsutsumi, A., Ikehara, M., Uno, M., Yamaguchi, A., Hamada, Y., Namiki, Y., Kimura, G. (2015)
Hydrogeological responses to incoming materials at the erosional subduction margin, offshore Osa Peninsula, Costa Rica.
Geochemistry, Geophys. Geosystems 16, 2725-2742, 10.1002/2015GC005837. 

13. Saito, T., Uno, M., Sato, T., Fujisaki, W., Haraguchi, S., Li, Y., Sawaki, Y., Yamamoto, S., Maruyama, S. (2015)
Geochemistry of accreted metavolcanic rocks from the Neoproterozoic Gwna Group of Anglesey-Lleyn, NW Wales, U.K.: MORB and OIB in the Iapetus Ocean.
Tectonophysics 662, 243-255, doi: 10.1016/j.tecto.2015.08.015. 


[岩石鉱物科学 43, 47 - 53 (2014)]

[學士會会報 905, 49 - 56 (2014)]

3.Bioessential element-depleted ocean following the euxinic maximum of the end-Permian mass extinction
[Earth and Planetary Science Letters 393, 94 - 104 (2014)]
Satoshi Takahashi, shi-ichi Yamasaki, Yamsumasa Ogawa, Kazuhiro Kimura, Kunio Kaiho,Takeyoshi Yohida, Noriyoshi Tsuchiya

4.Cu behavior and effects of mine drainage in Kosaka River , Hokuroku mining district, Northeast Japan
[Transactions of Nonferrous Metals Society of China 24, 1880 - 1889 (2014)]
Qing-qing Lu, Takuro KANETSUKI, Shin-ichi YAMASAKI, Ryoichi YAMADA, Takahiro WATANABE, Noriyoshi TSUCHIYA

5.The significance of silica precioitation on the formation of the permeable-impermeable boundary within Earth's crust
[Terra Nova 26(4),253 - 259 (2014)]
Hanae Saisyu, Atsushi Okamoto and Noriyoshi Tsuchiya

[ぶんせき 2014(10), 578 - 581 (2014)]

7.Magmatic-Hydrothermal Acivity in the Shuteen Area, South Mongolia
[Economic Geology 109, 1929 - 1942 (2014)]
Bayaraa Batkhising, Tsuchiya Noriyoshi, and Greg Bignall

8,Millimeter- to decimeter- scale compositional mapping using a scanning X-ray analytical microscope and its application to a reaction zone in high-grade metamorphic rock
[Journal of mineralogical and Petrological Science 109,271-278(2014)]
Masaki Uno,Atsushi Okamoto and Noriyoshi Tsuchiya

[地学雑誌 123(6), 793 - 796 (2014)]

[地学雑誌 123(6), 835 - 853 (2014)]

[地学雑誌 123(6), 854 - 870 (2014)]

12.東北地方太平洋沖地震による岩手、宮城、福島県沿岸地域における津波堆積物の供給物 -TOC/TC比および安定硫黄同位体を指標として-
[地学雑誌 123(6), 871 - 882 (2014)]

[地学雑誌 123(6), 904 - 922 (2014)]

[岩石鉱物科学 43,(2014) 日本鉱物科学会研究奨励賞研究紹介論文]

[月間地球 36,63-67(2014)]

16. Rheological properties of the detachment shear zone of an oceanic core complex inferred by plagioclase flow law: Godzilla Mega mullion, Parece Vela back-arc basin, Philippine Sea.
[Earth and Planetary Science Letters, 408, 16-23(2014)]


1. Distribution coefficients (Kd) of stable iodine in estuarine and costral region, Japan, and their relationship to salinity and organic carbon in sediments.
[Environmental Monitoring and Assessment, 185(5) 3645 – 3658 (2013)]
Hyoe Takata, Jian Zheng, Keiko Tagami, Tatsuo Aono, Kazuhiro Fujita, Shin-ichi Yamasaki, Noriyoshi Tsuchiya, Shigeo Uchida

2.Red soils derived from limestone contain higher amounts of trace elements than those derived from various other parent materials.
[Soil Science and Plant Nutrition 59(5), 692 - 699 (2013)]
Shin-ichi Yamasaki, Akira Takeda, Keishi Ninohora, Noriyoshi Tsuchiya

3. Permeability evolution in carbonate fracture: Competing roles of confining stress and fluid pH
[Water Resources Research, 49 (5) 2828-2842, DOI: 10.1002/wrcr.20253]
Takuya Ishibashi, Thomas P. McGuire, Noriaki Watanabe, Noriyoshi Tsuchiya, Derek Elsworth

4. 堆積岩からの重金属類の水溶出試験結果に対する粒径の影響
[資源地質 63(3) 125 - 131 (2013)]

5,東ドロイングモードランド,セール・ロンダーネ山地地学調査報告2009-2010 (JARE-51)
[南極資料 56(3) 295 - 380(2013)]
土屋範芳・石川正弘・Madhusoodhan Satish-Kumar・河上哲生・小島秀康・海田博司・三浦英樹・菅沼悠介・阿部幹雄・佐々木大輔・千葉政範・岡田豊

6,The effect of Al and Na on the precipitation rate of silica minerals: hydrothermal flow-through experiments at 430 ºC and 31 MPa
[Procedia Earth and Planetary Science 7,762 - 765(2013)
Hanae Saishua, Atsushi Okamoto, and Noriyoshi Tsuchiya

7,Spectroscopic measurement of critical points and characteristics of supercritical state of H2O and CO2
[Procedia Earth and Planetary Science 7,846 - 849(2013)]
Noriyoshi Tsuchiya, Chizu Sekiguchi, Nobuo Hirano

8,Effect of silica transport on serpentinization in the Ol-Opx-H2O system
[Procedia Earth and Planetary Science 7, 628 - 631(2013)]
Atsushi Okamoto, Yuichi Ogasawara, Nobuo Hirano, Noriyoshi Tsuchiya

9,Coupled reactions and silica diffusion during serpentinization
[Geochimica Cosmochimica Acta 119,212 - 230(2013)]
Yuichi Ogasawara, Atsushi Okamoto, Nobuo Hirano, and Noriyoshi Tsuchiya

10,-Tonian to early-Cryogenian apparent depositional ages for metacarbonate rocks from the Sor Rondane Montains, East Antarctica
[Precambrian Research 234,257 - 278(2013)]
Naho Otsuji, M. Satish-Kumar, Atsushi Kamei, Noriyoshi Tsuchiya, Tetsuo Kawakami, Masahiro Ishikawa and Geoffrey H. Grantham

11,Comparison of the metamorphic histry of Monapo Complex, northern Mozambique and Balchenfjella and Austhameren areas, Sor Rodane, Antarctica:
[Precambrian Research 234,85 - 135(2013)]
G. H. Grantham, P. H. Macey, K. Horie, T. Kawakami, M. Ishikawa, M. Satish-Kumar, N. Tsuchiya, P. Graser and S. Azevedo

12,Chlorine-rich fluid or melt activity during granulite facies metamorphism in the Late Proterozoic to Cambrian continental collision zone-An example from the collaps of the East African Atrantic ocean
[Precambrian Research 234,229 - 246(2013)]
Fumiko Higashino, Tetsuo Kawakami, M. Satish-Kumar, Masahiro Ishikawa, Kenshi Maki, Noriyoshi Tsuchiya, Geoffrey H. Grantham and Takafumi Hirata

13,Late Neoproterozoic extensional detachment in eastern Sor Rondane Mountains, East Antarctica: Implications for the collapse of the East African Antarctic Orogen
[Precambrian Research 234,247 - 256(2013)]
Masahiro Ishikawa, Tetsuo Kamwakami, M. Satish-Kumar, Geoffrey H. Grantham, Yuichi Hokazono, Megumi Saso and Noriyoshi Tsuchiya

14,Fractionation and Deposition of Indium and Arsenic from the Kusatsu and Tamagawa Acidic Hot Springs, Japan: Possible Man-Made Analogues for Rare Metal Concentrations onto Lake Beds?
[Economic Geology 108,1461 - 1656(2013)]
Yasumasa Ogawa,Daizo Ishiyama,Naotatsu Shikazono,Kenta Iwane,Masahiro Kajiwara,and Noriyoshi Tsuchiya

15,Decompression with heating associated with granitoid intrusion deduced from spatial variation in garnet zonings in the Tseel Terrane, SW Mongolia
[Mongolian Geoscientist 39,12- 27(2013)]
Ulziiburen Burenjargal, Atsushi Okamoto, Tatsu Kuwatani and Noriyohi Tsuchiya

16,Spectroscopic determination of the critical temperatures and pressures of H2O, CO2and C2H5OH
[Journal of Mineralogical and Petrological Sciences 108(6),1 - 10(2013)]
Chizu SEKIGUCHI, Nobuo HIRANO, Atsushi OKAMOTO and Noriyoshi TSUCHIYA