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A comment on A fifth of Earth’s geologic history might have vanished because of glaciers. Parent comment

Re:A fifth of Earth’s geologic history might have vanished b... by meroes on Tuesday January 01, 2019 @12:33PM (#18801152)
The society would have to have never discovered radioactivity to go undetected this long. In comparison it will take millions of years to wipe out human traces ever since the first atomic testing was done.
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Re:A fifth of Earth’s geologic history might have vanished b... by sgt101 on Tuesday January 01, 2019 @03:12PM (#18802009)
Billions for sure - we know because the natural reactor at Oklo 1.7 billion years ago is still very much detected.

https://en.wikipedia.org/wiki/Natural_nuclear_fission_reacto...

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Re:A fifth of Earth’s geologic history might have vanished b... by Ericson2314 on Tuesday January 01, 2019 @09:11PM (#18803723)
Very cool. Glad to learn about that!
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