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Over geologic timescales, almost all rocks on earth are pushed down far enough that they melt, mix, and are churned back up as new rock.
by dharmab 3y ago
Over geologic timescales, almost all rocks on earth are pushed down far enough that they melt, mix, and are churned back up as new rock.
- Jensson 3y agoWe still find fossils from hundreds of millions of years ago, and giant constructions are much better at surviving than skeletons.
- jl6 3y agoThere’s still a lot of room to hide in that “almost”. Continental shields in Canada and Australia haven’t been recycled into the deep Earth and we can still find geological features there that are billions of years old.
- hef19898 3y agoOnly that so far back, we know Earth was not really inhabitable.