Quote:
Originally Posted by PraedSt
Oh ok. You mean: 1) assume for now the hot surface Hadean is correct and 2) the cold surface claim is still weak? I'm ok with that.
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I think hot or cold, the evidence is luke warm
The problem is it is all so indirect, based on isotope ratios in a few tiny mineral grains taken rocks that are incredibly metamorphosed to start with. Plus theoretical models that are vased on assumptions, reasonable perhaps, but still assumptions.
IMHO!