Friday, November 13, 2009

Early Oceans

Interesting article at Science Daily.
"The scalding-hot sea that supposedly covered the early Earth may in fact never have existed"
Always a good start...

It is important to remember that a model is only a model. It is only as real as it is accurate and complete. A simple model will always break down, under certain circumstances. If you know the circumstances, the model can be useful. If you don't know, then you get bitten.
"Previous studies of similarly aged rocks had looked only at oxygen isotope ratios ... But isotope ratios recorded in rocks on the ocean floor are also dependent on the chemical composition of the seawater in which those rocks formed, and the past studies assumed the composition of the ancient ocean was essentially what it is today, which the [current] Stanford study did not."
This is postmodern science. We only know what science tells us, and science changes its story regularly. Their is no guarantee that today's "truth" will be tomorrow's "fantasy".

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