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  1. Research article

    A record of the upper Olduvai geomagnetic polarity transition from a sediment core in southern Yokohama City, Pacific side of central Japan

    A detailed paleomagnetic record of the upper Olduvai polarity transition was obtained from a 106.72 m-long sediment core drilled in southern Yokohama City, located on the northern Miura Peninsula, on the Pacif...

    Chie Kusu, Makoto Okada, Atsushi Nozaki, Ryuichi Majima and Hideki Wada

    Progress in Earth and Planetary Science 2016 3:26

    Published on: 23 September 2016

  2. Research article

    Major element composition of an Early Enriched Reservoir: constraints from 142Nd/144Nd isotope systematics in the early Earth and high-pressure melting experiments of a primitive peridotite

    The Accessible Silicate Earth (ASE) has a higher 142Nd/144Nd ratio than most chondrites. Thus, if the Earth is assumed to have formed from these chondrites, a complement low-142Nd/144Nd reservoir is needed. Such ...

    Nozomi Kondo, Takashi Yoshino, Kyoko N. Matsukage and Tetsu Kogiso

    Progress in Earth and Planetary Science 2016 3:25

    Published on: 22 August 2016

  3. Review

    Extreme geomagnetically induced currents

    We propose an emergency alert framework for geomagnetically induced currents (GICs), based on the empirically extreme values and theoretical upper limits of the solar wind parameters and of dB/dt, the time deriva...

    Ryuho Kataoka and Chigomezyo Ngwira

    Progress in Earth and Planetary Science 2016 3:23

    Published on: 19 August 2016

  4. Review

    A review of progress towards understanding the transient global mean surface temperature response to radiative perturbation

    The correct understanding of the transient response to external radiative perturbation is important for the interpretation of observed climate change, the prediction of near-future climate change, and committe...

    Masakazu Yoshimori, Masahiro Watanabe, Hideo Shiogama, Akira Oka, Ayako Abe-Ouchi, Rumi Ohgaito and Youichi Kamae

    Progress in Earth and Planetary Science 2016 3:21

    Published on: 18 July 2016

  5. Research article

    Ultrahigh-pressure acoustic wave velocities of SiO2-Al2O3 glasses up to 200 GPa

    Extensive experimental studies on the structure and density of silicate glasses as laboratory analogs of natural silicate melts have attempted to address the nature of dense silicate melts that may be present ...

    Itaru Ohira, Motohiko Murakami, Shinji Kohara, Koji Ohara and Eiji Ohtani

    Progress in Earth and Planetary Science 2016 3:18

    Published on: 29 June 2016

  6. Research article

    Resolution dependence of deep convections in a global simulation from over 10-kilometer to sub-kilometer grid spacing

    The success of sub-kilometer global atmospheric simulation opens the door for resolving deep convections, which are fundamental elements of cloudy disturbances that drive global circulation. A previous study f...

    Yoshiyuki Kajikawa, Yoshiaki Miyamoto, Ryuji Yoshida, Tsuyoshi Yamaura, Hisashi Yashiro and Hirofumi Tomita

    Progress in Earth and Planetary Science 2016 3:16

    Published on: 6 June 2016

  7. Research article

    Unit cell determination of coexisting post-perovskite and H-phase in (Mg,Fe)SiO3 using multigrain XRD: compositional variation across a laser heating spot at 119 GPa

    Multigrain X-ray diffraction (XRD) can be used to accurately calculate the unit cell parameters of individual mineral phases in a mineral assemblage contained in a diamond anvil cell (DAC). Coexisting post-per...

    Li Zhang, Yue Meng and Ho-kwang Mao

    Progress in Earth and Planetary Science 2016 3:13

    Published on: 12 May 2016

  8. Research article

    Examination of the largest-possible tsunamis (Level 2) generated along the Nankai and Suruga troughs during the past 4000 years based on studies of tsunami deposits from the 2011 Tohoku-oki tsunami

    Japanese historical documents reveal that Mw 8 class earthquakes have occurred every 100–150 years along the Suruga and Nankai troughs since the 684 Hakuho earthquake. These earthquakes have commonly caused la...

    Akihisa Kitamura

    Progress in Earth and Planetary Science 2016 3:12

    Published on: 12 May 2016

  9. Research article

    Hydrogen and carbon isotope systematics in hydrogenotrophic methanogenesis under H2-limited and H2-enriched conditions: implications for the origin of methane and its isotopic diagnosis

    Hydrogen and carbon isotope systematics of H2O–H2–CO2–CH4 in hydrogenotrophic methanogenesis and their relation to H2 availability were investigated. Two H2-syntrophic cocultures of fermentatively hydrogenogenic ...

    Tomoyo Okumura, Shinsuke Kawagucci, Yayoi Saito, Yohei Matsui, Ken Takai and Hiroyuki Imachi

    Progress in Earth and Planetary Science 2016 3:14

    Published on: 12 May 2016

  10. Research article

    An experimental study on the rate and mechanism of capillary rise in sandstone

    The Lucas-Washburn equation is a fundamental expression used to describe capillary rise in geologic media on the basis of pore radius, liquid viscosity, surface tension, contact angle, and time. It is known th...

    Yuya Tsunazawa, Tadashi Yokoyama and Naoki Nishiyama

    Progress in Earth and Planetary Science 2016 3:8

    Published on: 28 April 2016

  11. Research article

    Sound velocities of bridgmanite from density of states determined by nuclear inelastic scattering and first-principles calculations

    Sound velocities of bridgmanite measured in the laboratory are a key to deciphering the composition of the lower mantle. Here, we report Debye sound velocities determined using nuclear inelastic scattering (NI...

    Catherine McCammon, Razvan Caracas, Konstantin Glazyrin, Vasily Potapkin, Anastasia Kantor, Ryosuke Sinmyo, Clemens Prescher, Ilya Kupenko, Aleksandr Chumakov and Leonid Dubrovinsky

    Progress in Earth and Planetary Science 2016 3:10

    Published on: 28 April 2016

  12. Review

    Mantle hydration and Cl-rich fluids in the subduction forearc

    In the forearc region, aqueous fluids are released from the subducting slab at a rate depending on its thermal state. Escaping fluids tend to rise vertically unless they meet permeability barriers such as the ...

    Bruno Reynard

    Progress in Earth and Planetary Science 2016 3:9

    Published on: 28 April 2016

  13. Research article

    Impact-induced melting during accretion of the Earth

    Because of the high energies involved, giant impacts that occur during planetary accretion cause large degrees of melting. The depth of melting in the target body after each collision determines the pressure a...

    Jellie de Vries, Francis Nimmo, H. Jay Melosh, Seth A. Jacobson, Alessandro Morbidelli and David C. Rubie

    Progress in Earth and Planetary Science 2016 3:7

    Published on: 14 March 2016

  14. Research article

    Mass accumulation rate of detrital materials in Lake Suigetsu as a potential proxy for heavy precipitation: a comparison of the observational precipitation and sedimentary record

    In the densely populated region of East Asia, it is important to know the mechanism, scale, and frequency of heavy precipitation brought about during the monsoons and typhoons. However, observational data, whi...

    Yoshiaki Suzuki, Ryuji Tada, Kazuyoshi Yamada, Tomohisa Irino, Kana Nagashima, Takeshi Nakagawa and Takayuki Omori

    Progress in Earth and Planetary Science 2016 3:5

    Published on: 12 February 2016

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