Hf-W chronometry of lunar metals and the age and early differentiation of the Moon.

@article{Kleine2005HfWCO,
  title={Hf-W chronometry of lunar metals and the age and early differentiation of the Moon.},
  author={Thorsten Kleine and Herbert Palme and K. Mezger and Alex N. Halliday},
  journal={Science},
  year={2005},
  volume={310 5754},
  pages={
          1671-4
        }
}
  • Thorsten Kleine, Herbert Palme, +1 author Alex N. Halliday
  • Published in Science 2005
  • Geology, Medicine
  • The use of hafnium-tungsten chronometry to date the Moon is hampered by cosmogenic tungsten-182 production mainly by neutron capture of tantalum-181 at the lunar surface. We report tungsten isotope data for lunar metals, which contain no 181Ta-derived cosmogenic 182W. The data reveal differences in indigenous 182W/184W of lunar mantle reservoirs, indicating crystallization of the lunar magma ocean 4.527 +/- 0.010 billion years ago. This age is consistent with the giant impact hypothesis and… CONTINUE READING

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