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7/5/2025, 12:45:54 AM
>>63932623
This is dealing with more of the chemistry of it, but fossils aren't necessarily "true" bone. They are mineralized versions of what was buried and preserved. (This is also why tar pits are a very unique way of fossilization, since they're legit bones)
Anyway, some bones dating back to the Jurassic Period are so old that they mineralized with enough heavy metals in them that the fossils emit radon gas.
Which is only really possible if it was millions of years old. Also right around the end of all cretaceous layers in China, America, Europe, etc. is a boundary layer of iridum, an element that is quite rare on earth, but very common in space rock and would follow suit with an asteroid strike, of which we have a pretty clear area it struck in the Chicxulub impact, of which when cross-sectioned, showed it clearly hit in the Cretaceous.
This is dealing with more of the chemistry of it, but fossils aren't necessarily "true" bone. They are mineralized versions of what was buried and preserved. (This is also why tar pits are a very unique way of fossilization, since they're legit bones)
Anyway, some bones dating back to the Jurassic Period are so old that they mineralized with enough heavy metals in them that the fossils emit radon gas.
Which is only really possible if it was millions of years old. Also right around the end of all cretaceous layers in China, America, Europe, etc. is a boundary layer of iridum, an element that is quite rare on earth, but very common in space rock and would follow suit with an asteroid strike, of which we have a pretty clear area it struck in the Chicxulub impact, of which when cross-sectioned, showed it clearly hit in the Cretaceous.
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