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I still don't understand what geological record this would set. Wouldn't the tree eventually die and have its remains scattered around the globe? How would this

• Cthulhu_ 9y ago
  It's just one source of mapping radioactivity and time; I'm sure you'd be able to find a similar trace pretty much everywhere. As the article points out, they saw a similar spike in research done in the northern hemisphere.
• maze-le 9y ago
  Lets assume you are a geologist 100000 years from now. When you look at a drilling core you most certainly will be able to identify a strata, that is enriched with radionuclides (or fission products of radionuclides), that cannot be found deeper (earlier) in the core. >> Wouldn't the tree eventually die and have its remains scattered around the globe? Yes, thats exactly the thing, a lot of trees (and other biomatter) will die, and all of them will scatter their slightly more radioactive remains around the globe to create a layer as an imprint of the history of our planet.
  • gypsy_boots 9y ago
    This is a fantastic ELI5. Thank you