Radium and Geology


IN considering the influence of radium on earth history, it appears to be generally assumed that the radium detected everywhere in the surface materials of the earth is an original constituent of the igneous rocks. An entirely different view has been lately pressing itself upon me. I put the view forward mainly because I think there are difficulties in the way of accepting the original or primary nature of the radium in rocks. These objections I first briefly state.

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JOLY, J. Radium and Geology. Nature 75, 294–295 (1907) doi:10.1038/075294b0

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