rubidium-strontium

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English[edit]

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Noun[edit]

rubidium-strontium (uncountable)

  1. (attributive) Designating a method of geological dating based on the relative amounts in rock of rubidium-87 and its beta-decay product, strontium-87.
    • 1999, Jonathan I Lunine, Earth: Evolution of a Habitable World, page 101:
      Isotopic dating of meteorites using the rubidium-strontium system and others indicates that the most primitive rocks in the solar system are 4.56 billion years old, determined rather precisely.

Synonyms[edit]

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