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(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 

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29 Nov 2010 Currently, thirty-one rubidium, thirty-five strontium, thirty-five molybdenum and authors with the discovery in spite of the inaccurate half-life. reports of discovery credit is given to the paper with the earlier submission date. 20 year old guy dating 32 year old woman

(2) Rubidium-strontium dating, based on the decay of rubidium into strontium. . (1) Uranium 238 decays to lead 206, with a half-life of 4.5 billion years.

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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 

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Potassium-40 has a half-life of 1.3 billion years, and so this method is applicable Rubidium-strontium dating is not as precise as the uranium-lead method, with 

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