Original: According to computer models reported in Astrobiology, a deposit of such radioactive materials could show the same self-sustaining nuclear reaction as that found in the Oklo uranium ore seam in Gabon.
Simplified: According to computer models reported in Astrobiology, vol 7 p 852, a deposit of such radioactive materials could show the same self-sustaining nuclear reaction as that found in the Oklo uranium ore seam in Gabon.