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={T. Kleine and H. Palme and K. Mezger and A. Halliday},
  journal={Science},
  year={2005},
  volume={310},
  pages={1671 - 1674}
}
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… Expand
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A young Moon-forming giant impact at 70–110 million years accompanied by late-stage mixing, core formation and degassing of the Earth
  • A. Halliday
  • Geology, Medicine
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2008
Tungsten isotopes and the origin of the Moon
Early differentiation of meteorites constrained by the Hf-W isotope system
Early differentiation of the Earth and the Moon
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