• DOI:10.1038/358402A0
Corpus ID: 37386975

Post-depositional mobility of platinum, iridium and rhenium in marine sediments

@article{Colodner1992PostdepositionalMO,
  title={Post-depositional mobility of platinum, iridium and rhenium in marine sediments},
  author={D. Colodner and E. Boyle and J. Edmond and J. Thomson},
  journal={Nature},
  year={1992},
  volume={358},
  pages={402-404}
}

D. Colodner, E. Boyle, +1 author J. Thomson

Published 1992

Geology

Nature

THE discovery of high concentrations of iridium in Cretaceous/Tertiary boundary sediments engendered the hypothesis1 that a meteorite collided with the Earth 65 million years ago, coincident with the mass extinction that occurred at that time. Iridium spikes of various magnitudes have subsequently been reported at more than 10 other extinction horizons2–11. It has been suggested, on the other hand, that geochemical processes might create or modify many of these spikes5, 11–4, but a critical… CONTINUE READING

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