- #36
Borek
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Nik_2213 said:Given that Earth's plate tectonics will inexorably move any currently 'protected' area into harm's way, normal erosion, glaciation and, ultimately, subduction will eventually wipe the slate clean...
Perhaps the last evidence to go will be the lunar landers, both US and Russian ??
Between oldest fossils known are these from http://en.wikipedia.org/wiki/Gunflint_Chert - over 2 billion years.
The oldest known rock from http://en.wikipedia.org/wiki/Jack_Hills is around 3Ga, quite likely there are no fossils older than 2Ga just because there was nothing that could be fossilized.
If tectonics stops in less than 3 Ga from now (and there are reasons to believe it may happen much sooner), some remnants of what's around us should be still left.
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