
17亿年前天然核反应堆的奥秘
原标题: The Oklo uranium deposit in Gabon ran as a natural nuclear reactor roughly 1.7 billion years ago, cycling on and off in three-hour pulses for hundreds of thousands of years before the first cells with a nucleus even existed on Earth.
加蓬Oklo是地球上唯一已知的天然核反应堆,约17亿年前因高丰度铀-235与地下水作用,以三小时为周期脉冲式运行了数十万年。该遗址不仅为深时核废料地质封存提供了天然实验证据,还验证了精细结构常数在宇宙时间尺度上的恒定性,其发现源于法国浓缩厂对铀矿品位异常的偶然察觉。
