Uranium can reach high concentrations by natural processes. At least one mine in Canada’s Athabasca Basin must be operated remotely; and evidence suggests that critical mass was reached at a site in Gabon, two billion years ago.
Uranium can reach high concentrations by natural processes. At least one mine in Canada’s Athabasca Basin must be operated remotely; and evidence suggests that critical mass was reached at a site in Gabon, two billion years ago.