Evolution: ancient sulfur-eating bacteria and carbon 12-13 (Introduction)

by David Turell @, Sunday, February 10, 2019, 00:42 (190 days ago) @ David Turell

Life on Earth is ancient as carbon 12 and carbon 13 isotopes tell us. See what 12 and 13 tell us. Same story as sulfur: life started almost immediately after Earth formed:


"We get that evidence from looking at carbon 12 to carbon 13 analysis. And it tells us that in Earth’s oldest (sedimentary) rock, which dates at 3.80 billion years ago, we find an abundance for the carbon signature of living systems. Namely, that life prefers carbon 12. And so if you see a higher ratio of carbon 12 to carbon 13 that means that carbon has been processed by life. And it is that kind of evidence that tells us that life has been abundant on earth as far back as 3.80 billion years ago (when water was first present on earth).,,, And that same carbon 12 to carbon 13 analysis tells us that planet earth, over it entire 4.5662 billion year history has never had prebiotics. Prebiotics would have a higher ratio of carbon 13 to carbon 12. All the carbonaceous material, we see in the entire geological record of the earth, has the signature of being post-biotic not pre-biotic. Which means planet earth never had a primordial soup. And the origin of life on earth took place in a geological instant” (as soon as it was possible for life to exist on earth)."
– Hugh Ross –

Comment: Earth is a very special place.

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