Primordial nuclide

  • relative abundance of the chemical elements in the earth's upper continental crust, on a per-atom basis

    in geochemistry, geophysics and geonuclear physics, primordial nuclides, also known as primordial isotopes, are nuclides found on earth that have existed in their current form since before earth was formed. primordial nuclides were present in the interstellar medium from which the solar system was formed, and were formed in, or after, the big bang, by nucleosynthesis in stars and supernovae followed by mass ejection, by cosmic ray spallation, and potentially from other processes. they are the stable nuclides plus the long-lived fraction of radionuclides surviving in the primordial solar nebula through planet accretion until the present. only 286 such nuclides are known.

  • stability
  • naturally occurring nuclides that are not primordial
  • primordial elements
  • naturally occurring stable nuclides
  • radioactive primordial nuclides
  • see also
  • references

Relative abundance of the chemical elements in the Earth's upper continental crust, on a per-atom basis

In geochemistry, geophysics and geonuclear physics, primordial nuclides, also known as primordial isotopes, are nuclides found on Earth that have existed in their current form since before Earth was formed. Primordial nuclides were present in the interstellar medium from which the solar system was formed, and were formed in, or after, the Big Bang, by nucleosynthesis in stars and supernovae followed by mass ejection, by cosmic ray spallation, and potentially from other processes. They are the stable nuclides plus the long-lived fraction of radionuclides surviving in the primordial solar nebula through planet accretion until the present. Only 286 such nuclides are known.