Skip to main content

High-Pressure Earth and Planetary Science in the last and next decade

Understanding formations, evolutions and interiors of terrestrial planets and moons is an important research target. Advances in seismological techniques enable us to image the detailed inner structure of the Earth. Dramatic technological developments can provide new observation data about not only the Earth but also the others. Several planetary exploration missions are in progress (e.g., BepiColombo for Mercury; InSight for Mars), and we’ll obtain the updated information of planets in the near future. In order to interpret the observation, high-pressure data of planetary materials (silicate minerals as crust and mantle, iron alloys as core) are required.

This SPEPS aims to bring together high-pressure and temperature experiments on physics and chemistry of deep planetary materials, natural observation, and theoretical modeling within the principal subject areas of 'high-pressure science'.

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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