Natural Plutonium Discovered Beneath The Oceans Shows Cataclysmic History

YouTube ^ | May 27, 2021 | Scott Manley (fly safe)

[SunkenCiv]

Plutonium is generally thought of as an artificial element created by humans, primarily to make the pits of nuclear weapons, but naturally occurring plutonium can be found in ancient rocks. Plutonium 244 is the longest lived isotope of Plutonium, but it's not easy to make, and finding this specific isotope in interstellar dust grains laid down on the ocean floors tells us important things about the formation of the elements that make up the Earth.

Based on this paper:

60Fe and 244Pu deposited on Earth constrain the r-process yields of recent nearby supernovae A. Wallner et al

[RitchieAprile]

Nigeria is on the west coast of Africa.

[robowombat]

There was early 50’s sci fi movie with the discovery of this by the first manned mission to Mars. Cannot remember the name.

[SunkenCiv]

Uranium is said to have originated in extinct stars, and has a really long half-life, so at least some of the lead comes from the decay of uranium; the uranium-lead ratio is used to date the age of the Earth.

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

[SunkenCiv]

Plutonium is an isotope with a short half-life. So, no, and your high school physics must have sucked.

[SunkenCiv]

https://freerepublic.com/focus/chat/3963229/posts?page=18#18

[SunkenCiv]

My pleasure and thank you for the kind remarks.

[SunkenCiv]

https://freerepublic.com/focus/chat/3963229/posts?page=24#24

[Bratch]

[polymuser]

Meet Oklo, the Earth’s Two-billion-year-old only Known Natural Nuclear Reactor

https://www.iaea.org/newscenter/news/meet-oklo-the-earths-two-billion-year-old-only-known-natural-nuclear-reactor

[al baby]

By Vaccination?

[AdmSmith]

Thanks, it is a very good presentation by Scott Manley. He has more good videos https://www.youtube.com/c/szyzyg/videos

[SunkenCiv]

He’s one of my handful of favorite YT’ers.