More info about natural nuclear fission going critical 2 Million years ago?

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Discussion Overview

The discussion centers around the concept of natural nuclear fission reactors, specifically referencing evidence of one that may have gone critical approximately 2 million years ago in a uranium mine in West Africa. Participants explore the availability of information on this topic, including historical context and implications for nuclear waste disposal.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant mentions reading about a natural nuclear reactor in a textbook and seeks more information on the topic.
  • Another participant corrects the timeline, stating that the event occurred 1.7 billion years ago, not 2 million, and questions the relevance of the uranium mine in that context.
  • A participant highlights the potential significance of this natural reactor as an analogue for nuclear waste disposal.
  • There are requests for additional resources or discussions available on Physics Forums regarding this topic.
  • One participant recalls reading an article about this subject in the 1980s, suggesting a historical interest in the topic.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the timeline of the natural reactor event, with some asserting it occurred 1.7 billion years ago while others reference a 2 million-year timeframe. The discussion remains unresolved regarding the implications and details of the natural reactor.

Contextual Notes

There is a discrepancy in the timeline mentioned by participants, and the discussion reflects varying levels of familiarity with the historical context and implications of natural nuclear reactors.

CPW
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TL;DR
I find it fascinating that there is evidence from a uranium mine in West Africa that there may likely have been a nuclear fission natural reactor that went critical 2 million years ago. More info availble online at PF or somewhere else?
This week I read through the chapter "Energy from the Nucleus" inside the familiar intro physics textbook Halliday, Resnick, Walker. I found it fascinating that there is evidence from a uranium mine in West Africa that there may likely have been a nuclear fission natural reactor that went critical 2 million years ago. Is there more information availble online at PF or somewhere else, where the reader can go deeper?
 
Earth sciences news on Phys.org
"Studies have suggested this as a useful natural analogue for nuclear waste disposal." Very interesting!
 
CPW said:
Is there more information availble online at PF
https://www.physicsforums.com/search/3706040/?q=Oklo&o=date
 
I recall reading an article on this many years ago (1980s?). It was published in either Scientific American or Smithsonian magazine.
 

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