Now showing items 1-2 of 2

    • An assessment of upper mantle heterogeneity based on abyssal peridotite isotopic compositions 

      Warren, Jessica M.; Shimizu, Nobumichi; Sakaguchi, C.; Dick, Henry J. B.; Nakamura, E. (American Geophysical Union, 2009-12-17)
      Abyssal peridotites, the depleted solid residues of ocean ridge melting, are the most direct samples available to assess upper oceanic mantle composition. We present detailed isotope and trace element analyses of pyroxene ...
    • Magnesium isotopic composition of the oceanic mantle and oceanic Mg cycling 

      Liu, Ping-Ping; Teng, Fang-Zhen; Dick, Henry J. B.; Zhou, Mei-Fu; Chung, Sun-Lin (2017-02)
      To constrain the Mg isotopic composition of the oceanic mantle, investigate Mg isotope fractionation of abyssal peridotites during seafloor alteration, and assess Mg budget in the oceans, a suite of 32 abyssal peridotite ...