rubidium-strontium dating

noun
geological dating based on the proportions of radioactive rubidium into its decay product strontium; radioactive rubidium has a half-life of 47,000,000,000 years
Hypernyms: ↑dating, ↑geological dating

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/rooh bid"ee euhm stron"shee euhm, -sheuhm, -tee euhm/, Geol.
a radiometric dating method whereby the ratio of rubidium isotope to strontium in a mineral is used to calculate the age of the mineral, based on the rate of radioactive decay of rubidium to strontium.
[1965-70]

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rubidˈium-stronˈtium dating noun
A method of determining the age of rocks that are more than 10 million years old by measuring the relative amounts of rubidium-87 and its beta decay product strontium-87
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Main Entry:rubidium

Useful english dictionary. 2012.

Look at other dictionaries:

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  • Isochron dating — is a common technique of radiometric dating and is applied to date certain events, such as crystallization, metamorphism, shock events, and differentiation of precursor melts, in the history of rocks. Isochron dating can be further separated into …   Wikipedia

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