Browsing Institutt for geofag by Author "Walter, Michael J."

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  • Chalcogen isotopes reveal limited volatile contribution from late veneer to Earth 
    Wang, Wenzhong; Walter, Michael J.; Brodholt, John Peter; Huang, Shichun; Petaev, Michail I. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The origin of Earth’s volatile elements is highly debated. Comparing the chalcogen isotope ratios in the bulk silicate Earth (BSE) to those of its possible building blocks, chondritic meteorites, allows constraints on the ...
  • Experimental constraints on melting temperatures in the MgO–SiO2 system at lower mantle pressures 
    Baron, Marzena Anna; Lord, Oliver T.; Myhill, Robert; Thomson, Andrew R.; Wang, Weiwei; Trønnes, Reidar G; Walter, Michael J. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
    Eutectic melting curves in the system MgO–SiO2 have been experimentally determined at lower mantle pressures using laser-heated diamond anvil cell (LH-DAC) techniques. We investigated eutectic melting of bridgmanite plus ...