Reduced , reused and recycled : Detrital zircons define a maximum age for the Eoarchean ( ca . 3750 – 3780 Ma ) Nuvvuagittuq Supracrustal Belt , Québec ( Canada )

@inproceedings{Cates2013ReducedR,
  title={Reduced , reused and recycled : Detrital zircons define a maximum age for the Eoarchean ( ca . 3750 – 3780 Ma ) Nuvvuagittuq Supracrustal Belt , Qu{\'e}bec ( Canada )},
  author={Nicole L. Cates and Karen Ziegler and Axel K. Schmitt and Stephen J. Mojzsis},
  year={2013}
}
A key discovery from the Hadean (pre-3850 Ma) detrital zircon record has been that the dichotomy of granitic and basaltic crust was established within about 160 Myr of Earth’s formation (Harrison, 2009). Understanding the origin and fate of this primordial crust would greatly add to what we know about the geodynamics of the Hadean Earth. Insights emerge from Sm–Nd isotope data reported northern Québec. Some Ca-poor (cummingtonite-rich) amphibolites and granitoid gneisses of the NSB preserve… CONTINUE READING

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