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Geofluid processes in subduction zones and mantle dynamics

Edited by: Tatsuhiko Kawamoto, Stephen Kirby, Junichi Nakajima, Bruno Reynard, Hiroaki Toh

Geofluids liberated from the subducting plates migrate upward and play vital roles in various subduction zone phenomena, such as magma genesis, earthquake mechanisms, crustal deformation, ore deposition etc. Geofluids and the processes they are involved in subduction zones also greatly affect the mantle dynamics, including global material circulation and chemical differentiation, and the entrance of CHO fluids into the Earth's interior.

Publication started: 1 April 2014
Publication finished: 1 April 2015

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  1. Full paper

    Groundwater, possibly originated from subducted sediments, in Joban and Hamadori areas, southern Tohoku, Japan

    We studied the origin of deep groundwater in the Joban and Hamadori areas in southern Tohoku, Japan, based on δD, δ18O, 129I/I, 36Cl/Cl, and 3H concentrations. Deep groundwater was collected from the basement roc...

    Yoko S Togo, Kohei Kazahaya, Yuki Tosaki, Noritoshi Morikawa, Hiroyuki Matsuzaki, Masaaki Takahashi and Tsutomu Sato

    Earth, Planets and Space 2014 66:131

    Published on: 20 October 2014

  2. Letter

    Water content in arc basaltic magma in the Northeast Japan and Izu arcs: an estimate from Ca/Na partitioning between plagioclase and melt

    The variation in water content of arc basaltic magmas in the Northeast Japan arc and the Izu arc was estimated using a simple plagioclase phenocryst hygrometer. In order to construct a plagioclase phenocryst h...

    Masashi Ushioda, Eiichi Takahashi, Morihisa Hamada and Toshihiro Suzuki

    Earth, Planets and Space 2014 66:127

    Published on: 29 September 2014

  3. Full paper

    Arima hot spring waters as a deep-seated brine from subducting slab

    Non-volcanic hot springs are generally believed to originate through circulation of meteoric or buried sea water heated at depth. In this study, we report the geochemical characteristics of the Arima and Takar...

    Chiho Kusuda, Hikaru Iwamori, Hitomi Nakamura, Kohei Kazahaya and Noritoshi Morikawa

    Earth, Planets and Space 2014 66:119

    Published on: 19 September 2014

  4. Full paper

    Seismic velocity structure in and around the Naruko volcano, NE Japan, and its implications for volcanic and seismic activities

    Geofluids is important for understanding volcanic and earthquake generation processes. In this study, we obtained a detailed seismic velocity structure in and around the Naruko volcano, northeastern Japan, usi...

    Tomomi Okada, Toru Matsuzawa, Junichi Nakajima, Naoki Uchida, Mare Yamamoto, Shuichiro Hori, Toshio Kono, Takashi Nakayama, Satoshi Hirahara and Akira Hasegawa

    Earth, Planets and Space 2014 66:114

    Published on: 10 September 2014

  5. Full paper

    Contributions of poroelastic rebound and a weak volcanic arc to the postseismic deformation of the 2011 Tohoku earthquake

    A better understanding of fluid-related processes such as poroelastic rebound of the upper crust and weakening of the lower crust beneath the volcanic arc helps better understand and correctly interpret the he...

    Yan Hu, Roland Bürgmann, Jeffrey T Freymueller, Paramesh Banerjee and Kelin Wang

    Earth, Planets and Space 2014 66:106

    Published on: 2 September 2014

  6. Frontier letter

    Geochemistry of continental subduction-zone fluids

    The composition of continental subduction-zone fluids varies dramatically from dilute aqueous solutions at subsolidus conditions to hydrous silicate melts at supersolidus conditions, with variable concentratio...

    Yong-Fei Zheng and Joerg Hermann

    Earth, Planets and Space 2014 66:93

    Published on: 18 August 2014

  7. Letter

    Non-volcanic seismic swarm and fluid transportation driven by subduction of the Philippine Sea slab beneath the Kii Peninsula, Japan

    To understand the mechanism of an intensive non-volcanic seismic swarm in the Kii Peninsula, Japan, we used a dense seismic linear array to measure fine-scale variations of seismic velocities and converted tel...

    Aitaro Kato, Atsushi Saiga, Tetsuya Takeda, Takaya Iwasaki and Toru Matsuzawa

    Earth, Planets and Space 2014 66:86

    Published on: 4 August 2014

  8. Full paper

    Volatile (F and Cl) concentrations in Iwate olivine-hosted melt inclusions indicating low-temperature subduction

    Investigation of olivine-hosted melt inclusions provides information about the abundance of volatile elements that are often lost during subaerial eruptions of lavas. We have measured the abundances of H2O, CO2, ...

    Estelle F Rose-Koga, Kenneth T Koga, Morihisa Hamada, Thomas Hélouis, Martin J Whitehouse and Nobumichi Shimizu

    Earth, Planets and Space 2014 66:81

    Published on: 1 August 2014

  9. Full paper

    Large-ion lithophile elements delivered by saline fluids to the sub-arc mantle

    Geochemical signatures of arc basalts can be explained by addition of aqueous fluids, melts, and/or supercritical fluids from the subducting slab to the sub-arc mantle. Partitioning of large-ion lithophile ele...

    Tatsuhiko Kawamoto, Kenji Mibe, Hélène Bureau, Solenn Reguer, Cristian Mocuta, Stefan Kubsky, Dominique Thiaudière, Shigeaki Ono and Tetsu Kogiso

    Earth, Planets and Space 2014 66:61

    Published on: 27 June 2014

  10. Letter

    FTIR and Raman spectroscopy characterization of fluorine-bearing titanian clinohumite in antigorite serpentinite and chlorite harzburgite

    Titanian clinohumite is an accessory phase found in peridotites, and it can be a key repository of volatile and other trace elements in sub-arc mantle. To characterize spectroscopic variations due to volatile ...

    Kenneth T Koga, Carlos J Garrido, José A Padrón-Navarta, Vicente López Sánchez-Vizcaíno and María T Gómez-Pugnaire

    Earth, Planets and Space 2014 66:60

    Published on: 26 June 2014

  11. Letter

    Pore pressure distribution in the focal region of the 2008 M7.2 Iwate-Miyagi Nairiku earthquake

    The pore fluid pressure distribution in the focal region of the 2008 Iwate-Miyagi Nairiku earthquake was investigated through an analysis of the diversity of focal mechanisms. We inverted stress orientations a...

    Keisuke Yoshida, Akira Hasegawa, Tomomi Okada, Hiroaki Takahashi, Masahiro Kosuga, Takaya Iwasaki, Yoshiko Yamanaka, Hiroshi Katao, Yoshihisa Iio, Atsuki Kubo, Takeshi Matsushima, Hiroki Miyamachi and Youichi Asano

    Earth, Planets and Space 2014 66:59

    Published on: 20 June 2014

  12. Full paper

    A trial derivation of seismic plate coupling by focusing on the activity of shallow slow earthquakes

    To understand the effect of plate coupling on very low-frequency event (VLFE) activity resulting from megathrust earthquakes, we performed long-term multiscale earthquake cycle simulations (including a megathr...

    Keisuke Ariyoshi, Toru Matsuzawa, Ryota Hino, Akira Hasegawa, Takane Hori, Ryoko Nakata and Yoshiyuki Kaneda

    Earth, Planets and Space 2014 66:55

    Published on: 16 June 2014

  13. Letter

    A 3-D electrical resistivity model beneath the focal zone of the 2008 Iwate-Miyagi Nairiku earthquake (M 7.2)

    The 2008 Iwate-Miyagi Nairiku earthquake (M 7.2) was a shallow inland earthquake that occurred in the volcanic front of the northeastern Japan arc. To understand why the earthquake occurred beneath an active v...

    Hiroshi Ichihara, Shin'ya Sakanaka, Masaaki Mishina, Makoto Uyeshima, Tadashi Nishitani, Yasuo Ogawa, Yusuke Yamaya, Toru Mogi, Kazuhiro Amita and Takuya Miura

    Earth, Planets and Space 2014 66:50

    Published on: 10 June 2014

  14. Letter

    Distribution of CO2 fluids in the Shimanto belt on Muroto Peninsula, SW Japan: possible injection of magmatic CO2 into the accretionary prism

    Carbon dioxide and methane are major components in geofluids; however, there is little evidence showing how C-H-O fluids evolve in a subduction zone. We investigated fluid inclusions in quartz veins from the E...

    Atsushi Okamoto, Michimasa Musya, Yoshitaka Hashimoto and Noriyoshi Tsuchiya

    Earth, Planets and Space 2014 66:33

    Published on: 15 May 2014

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