Neodymium-142 Evidence for Hadean Mafic Crust

  title={Neodymium-142 Evidence for Hadean Mafic Crust},
  author={Jonathan O’Neil and Richard W. Carlson and Don Francis and Ross K. Stevenson},
  pages={1828 - 1831}
Neodymium-142 data for rocks from the Nuvvuagittuq greenstone belt in northern Quebec, Canada, show that some rock types have lower 142Nd/144Nd ratios than the terrestrial standard (ϵ142Nd = –0.07 to –0.15). Within a mafic amphibolite unit, 142Nd/144Nd ratios correlate positively with Sm/Nd ratios and produce a 146Sm-142Nd isochron with an age of \batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsmath} \pagestyle{empty} \begin… Expand

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