omatumr
Sep 15, 2011Congratulations!
Although we have evidence that Earth never completely melted [1,2], the upper mantle melted and degasses to produce the oceans and atmosphere.
1. "The xenon record of extinct radioactivities in the Earth," Science 174, 1334-1336 (1971)
www.omatumr.com/a...cord.pdf
2. "Noble gases in an Hawaiian xenolith", Nature 257, 778-780 (1975)
www.nature.com/na...8b0.html
3. "The noble gas record of the terrestrial planets", Geochemical Journal 15, 247-267 (1981)
http://www.omatum...eGas.pdf
With kind regards,
Oliver K. Manuel
Former NASA Principal
Investigator for Apollo