Paleonet: Oldest Igneous Rocks

Neil Bell neil.bell at helsinki.fi
Mon Mar 12 22:26:24 GMT 2007


Maybe the ones brought back from the moon?

Neil.

Alexander Glass wrote:
> Perhaps not an appropriate question for the paleolist but here goes 
> nothing.....
>
> Does anyone know what the oldest igneous rocks on Earth are?  Not 
> metamorphic rocks, not meta-sedimentary rocks, not detrital zircons but 
> UNALTERED, UNMETAMORPHOSED igneous rocks.
>
> Alex
>
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