Early Moon formation inferred from hafnium–tungsten systematics

@article{Thiemens2019EarlyMF,
  title={Early Moon formation inferred from hafnium–tungsten systematics},
  author={Maxwell M. Thiemens and Peter Sprung and Ra{\'u}l O. C. Fonseca and Felipe Padilha Leitzke and Carsten M{\"u}nker},
  journal={Nature Geoscience},
  year={2019},
  pages={1-5}
}
The date of the Moon-forming impact places an important constraint on Earth’s origin. Lunar age estimates range from about 30 Myr to 200 Myr after Solar System formation. Central to this age debate is the greater abundance of 182W inferred for the silicate Moon than for the bulk silicate Earth. This compositional difference has been explained as a vestige of less late accretion to the Moon than to the Earth after core formation. Here we present high-precision trace element composition data from… 

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