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Pronunciation varies by accent · noun
(attributive) Designating a method of geological dating based on the relative amounts in rock of rubidium-87 and its beta-decay product, strontium-87..
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.
Use rubidium-strontium when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Rubidium-strontium means (attributive) Designating a method of geological dating based on the relative amounts in rock of rubidium-87 and its beta-decay product, strontium-87..
Common synonyms include Rb-Sr.
The opposite depends on the specific sense.
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.
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