Publications

# Total / Peer-rev. paper

65 / 57

Nozaki, T., K. T. Goto, Y. Takaya, K. Shimada, A. Owada, G. Shimoda, J.-I. Kimura, Q. Chang, T. Onoue, S. Machida, T. Ishii, K. Shimizu, N. Hirano, K. Mimura, M. Yano, J. Ohta, Y. Kato (2024) Petrography and stratigraphic Os isotopic ages of ferromanganese nodules from the Northwest Pacific east of Minamitorishima Island. Journal of Asian Earth Sciences: X 11, 100176.

64 / 56

Mikuni, K., N. Hirano, S. Machida, H. Sumino, N. Akizawa, A. Tamura, T. Morishita, Y. Kato (2024) Contribution of carbonatite and recycled oceanic crust to petit-spot lavas on the western Pacific Plate. Solid Earth 15, 167-196.

63 / 55

Azami, K., S. Machida, N. Hirano, K. Nakamura, K. Yasukawa, T. Kogiso, M. Nakanishi, Y. Kato (2023) Hydrothermal ferromanganese oxides around a petit-spot volcano on old and cold oceanic crust. Communications Earth & Environment 4, 191.

62 / 54

Yutani, T., N. Hirano, H. Tanaka, H. Sumino, S. Machida, S. Sekimoto, S. Yoneda, Y. Kato (2023) An intraoceanic juvenile arc of shoshonite and adakitic andesite in the Nemuro Belt, the Lesser Kuril Arc, across the K/Pg boundary. Cretaceous Res. 147, 105510.

61 / 53

Shimizu, K., T. Ushikubo, T. Kuritani, N. Hirano, S. Yamashita (2022) . Modification for the matrix effect in SIMS-derived water contents of silicate glasses. Geochem J. 56 (6), 223-230.

60 / 52

Mikuni, K., N. Hirano, N. Akizawa, J. Yamamoto, S. Machida, A. Tamura, Y. Hagiwara, T. Morishita (2022) Lithological structure of western Pacific lithosphere reconstructed from mantle xenoliths in a petit-spot volcano. Progress in Earth and Planetary Science 9, 62.

59 / 51

Azami, K., Hirano, N., Kimura, J.-I., Chang, Q., Sumino, H., Machida, S., Yasukawa, K., Kato, Y. (2022) 87Sr/86Sr isotopic ratio of ferromanganese crusts as a record of detrital influx to the western North Pacific Ocean. Minerals 12 (8), 943.

58 / 50

Hirano, N., S. Machida (2022)

The mantle structure below petit-spot volcanoes.

Communications Earth & Environment 3, 110.

57

Kaneko, J., Machida, S., Hirano, N., Kasaya, T., Kumagai, H.  (2022)

Near bottom MBES survey mounted on a HOV at 5500m depth.

Oceans Conference Record (IEEE) 2022, 1-5.

56 / 49

Akizawa, N., N. Hirano, K. M. Matsuzaki, S. Machida, C. Tamura, J. Kaneko, H. Iwano, T. Danhara, T. Hirata (2022) A direct evidence for disturbance of whole sediment layer in the subducting Pacific plate by petit-spot magma–water/sediment interaction. Marine Geology 444, 106712.

55 / 48

Ganbat, A., D. Pastor-Galán, N. Hirano, N. Nakamura, H. Sumino, Y. Yamaguchi, T. Tsujimori (2021) Cretaceous to Miocene NW Pacific Plate kinematic constraints: Paleomagnetism and Ar-Ar geochronology in the Mineoka Ophiolite Mélange (Japan). Journal of Geophysical Research, Solid Earth 126 (5), e2020JB021492.

54 / 47

Aftabuzzaman, Md., K. Yomogida, S. Suzuki, H. Takayanagi, A. Ishigaki, S. Machida, Y. Asahara, K. Yamamoto, N. Hirano, S.‐I. Sano, S. Chiyonobu, D. Bassi, Y. Iryu (2021) Multi-approach characterization of shallow-water carbonates off Minamitorishima and their depositional settings/history.  Island Arc 30 (1), e12400.

53 / 46

Hirano, N., H. Sumino, T. Morishita, S. Machida, T. Kawano, K. Yasukawa, T. Hirata, Y. Kato, T. Ishii (2021) A Paleogene magmatic overprint on Cretaceous seamounts of the western Pacific. Island Arc. 30 (1), e12386.

52 / 45

Sakai, S., N. Hirano, Y. Dilek, S. Machida, K. Yasukawa, Y. Kato (2021) Tokoro Belt (NE Hokkaido): an exhumed, Jurassic – Early Cretaceous seamount in the Late Cretaceous accretionary prism of northern Japan. Geological Magazine 158, 72-83.

51 / 44

Yamamoto J., N. Hirano, M. D. Kurz (2020) Noble gas isotopic compositions of seamount lavas from the central Chile trench: implications for petit-spot volcanism and the lithosphere asthenosphere boundary. Earth and Planetary Science Letters 552, 116611.

50 / 43

Miyata, J., H. Takayanagi, A. Ishigaki, N. Hirano, S. Shiokawa, A. Nishimura, T. Nakazawa, T. Ishikawa, K. Nagaishi, H. Tokuyama, A. Ishiwatari, Y. Iryu (2020) Tectonic implications of carbonate deposits on the eastern slope of the Hahajima Seamount in the collision zone between the Izu–Bonin Arc on the Philippine Sea Plate and the Ogasawara Plateau on the Pacific Plate. Island Arc 29 (1), e12368.

49

Hirano, N. (2020) Geochemical evolution of Pacific plate: seamounts, petit-spots, and schalsteins. Latest Earth 1, 33-41.

[only in Japanese] 平野 (2020) 太平洋プレートの組成進化~海山・プチスポット・緑色岩. 新地球 1, 33-41.

48

Morishita, T., A. Tamura, Y. Harigane, N. Abe, N. Hirano (2020) Peridotite xenoliths in Petit-spot magmas from off-Tohoku regionas mantle materials at the bottom of melting column formed in the Pacific mid-ocean ridge. Latest Earth 1, 42-45.

[only in Japanese] 森下, 田村, 針金, 阿部, 平野 (2020) プチスポット火山岩中に含まれるカンラン岩捕獲岩の重要性:太平洋プレート形成に関与した溶融コラム深部起源物質の物証. 新地球 1, 42-45.

47 / 42

Liu, J., N. Hirano, S. Machida, Q. Xia, C. Tao, S. Liao, J. Liang, W. Li, W. Yang, G. Zhang, T. Ding (2020) Melting of recycled ancient crust responsible for the Gutenberg discontinuity. Nature Communications 11, 172.

46 / 41

Morishita, T., N. Hirano, H. Sumino, H. Sato, T. Shibata, M. Yoshikawa, S. Arai, R. Nauchi, A Tamura (2020) Alkali basalt from the Seifu seamount of the Japan Sea: post-spreading magmatism in the back-arc region. Solid Earth 11, 23-36.

45 / 40

Hirano, N., S. Machida, H. Sumino, K. Shimizu, A. Tamura, T. Morishita, H. Iwano, S. Sakata, T. Ishii, S. Arai, S. Yoneda, T. Danhara, T. Hirata (2019) Petit-spot volcanoes on the oldest portion of the Pacific Plate.  Deep-Sea Research Part I 154, 103142.

44 / 39

Azami, K., N. Hirano, S. Machida, K. Yasukawa, Y. Kato (2018)

Rare earth elements and yttrium (REY) variability with water depth in hydrogenetic ferromanganese crusts. Chemical Geology 493, 224-233.

43 / 38

Sato, Y., N. Hirano, S. Machida, J. Yamamoto, M. Nakanishi, T. Ishii, A. Taki, K. Yasukawa, Y. Kato.  (2018) Direct ascent to the surface of asthenospheric magma in a region of convex lithospheric flexure. International Geology Review 60 (10), 1231-1243.

42 / 37

L. Rochat, S. Pilet, O. Müntener, T. Duretz, L. Baumgartner, N. Abe, N. Hirano (2017) Garnet xenocryst from petit-spot lavas as an indicator for off-axis mantle refertilization at intermediate spreading ridges. Geology 45 (12), 1091-1094.

41 / 36

K. Baba, N. Tada, T. Matsuno, P. Liang, R. Li, L. Zhang, H. Shimizu, N. Abe, N. Hirano, M. Ichiki, H. Utada (2017) Electrical conductivity of old oceanic mantle in the northwestern Pacific I: 1-D profiles suggesting differences in thermal structure not predictable from a plate cooling model. Earth, Planets and Space 69, 111.

40 / 35

N. Hirano (2017) Geochemical/petrological interactions between subducting lithosphere and petit-spot magmas. Chigaku Zasshi, Tokyo Geographical Society, 126 (2), 195-206.

[in Japanese with English abstract] 平野 (2017) プチスポット形成過程と沈み込むリソスフェアへのインプット. 地学雑誌, 126 (2), 195-206.

39 / 34

S. Machida, T. Kogiso, N. Hirano (2017) Petit-spot as definitive evidence for partial melting in the asthenosphere caused by CO2. Nature Communications 8, 14302.

38 / 33

A. Sofiya, A. Ishiwatari, N. Hirano, T. Tsujimori (2017) Relict chromian spinels in Tulu Dimtu serpentinites and listvenite, Western Ethiopia: implications for the timing of listvenite formation. International Geology Review 59 (13), 1621-1631.

37 / 32

Pilet, Abe, Rochat, Kaczmarek, Hirano, Machida, Buchs, Baumgartner, Muntener (2016) Pre-subduction metasomatic enrichment of the oceanic lithosphere induced by plate flexure. Nature Geoscience 9, 898-903.

36 / 31

Machida, Fujinaga, Ishii, Nakamura, Hirano, Kato (2016) Geology and geochemistry of ferromanganese nodules in the Japanese Exclusive Economic Zone around Minamitorishima Island. Geochemical Journal 50 (6), 539-555.

35

Hirano, Yutani, Yamamoto (2016) Geological data and samples of Habomai and Shikotan Islands. Northeast Asian Studies, Tohoku University, 20, 61-74.

[only in Japanese] 平野・油谷・山本（2016） 歯舞群島と色丹島の地質資料と岩石試料の重要性. 東北アジア研究 20, 61-74.

34 / 30

Hirano, Nakanishi, Abe, Shiki Machida (2016) Submarine lava fields in French Polynesia. Marine Geology 373, 39-48.

33 / 29

Machida, Hirano, Sumino, Hirata, Yoneda, Kato (2015) Petit-spot geology reveals melts in upper-most asthenosphere dragged by lithosphere. Earth and Planetary Science Letters 426, 267-279.

Miyazaki, Kimura, Senda, Vaglarov, Chang, Takahashi, Hirahara, Hauff, Hayasaka, Sano, Shimoda, Ishizuka, Kawabata, Hirano, Machida, Ishii, Tani, Yoshida (2015) Missing western half of the Pacific Plate: Geochemical nature of the Izanagi–Pacific Ridge interaction with a stationary boundary between the Indian and Pacific mantles. Geochem. Geophys. Geosyst. 16, 3309-3332.

31 / 27

Yamamoto, Korenaga, Hirano, Kagi (2014) Melt-rich lithosphere-asthenosphere boundary inferred from petit-spot volcanoes. Geology 42 (11), 967-980.

30 / 26

Okumura & Hirano (2013) Carbon dioxide emission to Earth's surface by deep-sea volcanism. Geology 41, 1167-1170.

Hirano, Machida, Abe, Morishita, Tamura, Arai (2013) Petit-spot lava fields off the central Chile trench induced by plate flexure. Geochemical Journal 47, 249-257.

[only in Japanese] 石渡・宮本・平野 (2013) 仙台付近の墓石 転倒率調査結果. 平川・今村・東北大学災害科学国際研究所（編著）, 東日本大震災を分析する, 第1巻, 地震・津波のメカニズムと被害の実態, 明石書店, 263-276.

27 / 24

Kobayashi, Yamamoto, Hirajima, Ishibashi, Hirano, Lai, Prikhod'ko, Arai (2012) Conformity and precision of CO2 densimetry in CO2 inclusions: microthermometry versus Raman microspectroscopic densimetry. Journal of Raman Spectroscopy 43 (8) 1126–1133. DOI: 10.1002/jrs.3134

26 / 23

Yamamoto, Otsuka, Ohfuji, Ishibashi, Hirano, Kagi (2011) Retentivity of CO2 in fluid inclusions in mantle minerals. European Journal of Mineralogy 23, 805–815. DOI: 10.1127/0935-1221/2011/0023-2150

Hirano (2011) Petit-spot volcanism: a new type of volcanic zone discovered near a trench. Geochemical Journal 45 (2), 157–167.

Harigane, Mizukami, Morishita, Michibayashi, Abe, Hirano (2011) Direct evidence for upper mantle structure in the NW Pacific Plate: microstructural analysis of a petit-spot peridotite xenolith. Earth and Planetary Science Letters 302, 194–202.

Mori, Ogawa, Hirano, Tsunogae, Kurosawa, Chiba (2011) Role of plutonic and metamorphic block exhumation in a forearc ophiolite mélange belt: An example from the Mineoka belt, Japan. In: J. Wakabayashi & Y. Dilek (eds.) Mélanges: Processes of Formation and Societal Significance, Geological Sciety of America, Special Paper 480, 95-116.

22 / 19

Hirano, Abe, Yamamoto, Maichda (2010) New insights into the oceanic lithosphere from petit-spot volcanoes and “Super-Mohole” project. Journal of Geological Society of Japan 116, 1-12.

[in Japanese with English abstract] 平野・阿部・山本・町田 (2010) プチスポット火山から期待される海洋リソスフェアの包括的理解と地質学の新展開―超モホール計画の提案―. 地質学雑誌 116 (1)，1-12

Valentine & Hirano (2010) Mechanisms of low-flux intraplate volcanic fields - Basin and Range (North America) and Northwest Pacific Ocean. Geology 38 (1), 55–58. DOI: 10.1130/G30427.1

Yamamoto, Hirano, Abe, Hanyu (2009) Noble gas isotopic compositions of mantle xenoliths from northwestern Pacific lithosphere. Chemical Geology 268, 313–323. DOI: 10.1016/j.chemgeo.2009.09.009

Machida, Hirano, Kimura (2009) Evidence for recycled plate material in Pacific upper mantle unrelated to plumes. Geochimica et Cosmochimica Acta 73 (10), 3028-3037. DOI: 10.1016/j.gca.2009.01.026

Ogawa, Mori, Hirano, Takahashi, Mohiuddin, Sato, Tsunogae, Kurosawa, Taniguchi (2009) Knocker catalogue of the Mineoka ophiolite belt, Boso Peninsula, Japan. Earth Evolution Sciences Univ. Tsukuba 3, 3-25.

Hirano, Koppers, Takahashi, Fujiwara, Nakanishi (2008) Seamounts, knolls and petit spot monogenetic volcanoes on the subducting Pacific Plate. Basin Research 20 (4), 543-553. DOI: 10.1111/j.1365-2117.2008.00363.x

Fujiwara, Toshiya, Naoto Hirano, Natsue Abe, Kaoru Takizawa (2007) Subsurface structure of the ''petit-spot'' volcanoes on the northwestern Pacific Plate. Geophysical Research Letters 34, L13305. DOI: 10.1029/2007GL030439

Ingle, Stephanie, John J. Mahoney, Hiroshi Sato, Millard F. Coffin, Jun-Ichi Kimura, Naoto Hirano, Masao Nakanishi (2007) Depleted mantle wedge and sediment fingerprint in unusual basalts from the Manihiki Plateau, Central Pacific Ocean. Geology 35 (7), 595-598. DOI: 10.1130/G23741A.1

Hanyu, Takeshi, Kevin T. M. Johnson, Naoto Hirano, Zhong-Yuan Ren (2007) Noble gas and geochronology study of the Hana Ridge, Haleakala volcano, Hawaii; implications to the temporal change of magma source and the structural evolution of the submarine ridge. Chemical Geology 238, 1-18.

Yamamoto, Junji, Hiroyuki Kagi, Yoko Kawakami, Naoto Hirano, Masaki Nakamura (2007) Paleo-Moho depth determined from the pressure of CO2 fluid inclusions: Raman spectroscopic barometry of mantle- and crust-derived rocks. Earth and Planetary Science Letters 253 (3-4), 369-377.

Hirano, Naoto,  Eiichi Takahashi, Junji Yamamoto, Natsue Abe, Stephanie P. Ingle, Ichiro Kaneoka, Jun'ichi Kimura, Takafumi Hirata, Teruaki Ishii, Yujiro Ogawa , Shiki Machida & Kiyoshi Suyehiro (2006) Volcanism in response to plate flexure. Science 313 (5792), 1426-1428.

Fujiwara, Toshiya, Naoto Hirano, Natsue Abe & Kaoru Takizawa (2006) Subsurface structure of the “Petit-spot” intraplate volcanism, in the northwestern Pacific. JAMSTEC Report of Research & Development 3, 31-42.

Ren, Zhong-Yuan, Stephanie Ingle, Eiichi Takahashi, Naoto Hirano, Takafumi Hirata (2005) The chemical structure of the Hawaiian mantle plume. Nature 436, 837-840. DOI: 10.1038/nature03907

Hirano, Naoto, Jyunji Yamamoto, Hiroyuki Kagi, Teruaki Ishii (2004) Young, olivine xenocryst-bearing alkali-basalt from the oceanward slope of the Japan Trench. Contributions to mineralogy and Petrology 148 (1), 47-54.

Ebisawa, Noriko, Hirochika Sumino, Ryuji Okazaki, Yutaka Takigami, Naoto Hirano, Keisuke Nagao, Ichiro Kaneoka (2004) Construction of I-Xe and 40Ar-39Ar Dating System Using a Modified VG3600 Mass Spectrometer and the First I-Xe Data Obtained in Japan. Journal of Mass Spectrometry Society of Japan 52 (4), 219-229.

Hirano, Naoto, Yujiro Ogawa, Kazuo Saito, Takeyoshi Yoshida, Hiroshi Sato, & Hidetsugu Taniguchi (2003) Multi-stage evolution of the Tertiary Mineoka Ophiolite in the NW Pacific as revealed by new geochemical and age constraints. In: Yildirim Dilek & Paul T. Robinson (eds.), Ophiolites in Earth's History, Geological Society, London, Special Publications 218, 279-298.

Yamamoto, Junji, Naoto Hirano, Takeshi Hanyu, Hiroyuki Kagi and Ichiro Kaneoka (2003) Noble gases in mantle-derived xenocrysts in an alkali basalt from Japan Trench oceanward slope. In: Vladykin NV (ed) Plumes and problems of deep structures of alkaline magmatism. Irkutsk State Technical University, Irkutsk, pp 39-50.

Takahashi, Akiko, Yujiro Ogawa, Yasufmi Ohta, Naoto Hirano (2003) The nature of faulting and deformation in the Mineoka Ophiolite, NW Pacific Rim. In: Yildirim Dilek & Paul T. Robinson (eds.), Ophiolites in Earth's History, Geological Society of London Special Publication 218, 299-314.

Hirano, N., Y. Ogawa, K. Saito (2002)  Long-lived early Cretaceous seamount volcanism in the Mariana Trench, Western Pacific Ocean. Marine Geology 189, 371-379.

Hirano, N., K. Kawamura, M. Hattori, K. Saito, Y. Ogawa (2001) A new type of intra-plate volcanism; Young alkali-basalts discovered from the subducting Pacific Plate, Northern Japan Trench. Geophysical Research Letters 28, 2719-2722.