Paleonet: Oldest Igneous Rocks

Alexander Glass glassa at Geology.cwu.EDU
Mon Mar 12 20:35:31 GMT 2007


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




More information about the Paleonet mailing list