| 单词 |
rubidium-strontium dating |
| 释义 |
rubidium-strontium dating
rubidium-strontium dating n (General Physics) a technique for determining the age of minerals based on the occurrence in natural rubidium of a fixed amount of the radioisotope 87Rb which decays to the stable strontium isotope 87Sr with a half-life of 4.7 × 1011 years. Measurement of the ratio of these isotopes thus gives the age of a mineral, for ages of up to about 4 × 109 years Thesaurus| Noun | 1. | rubidium-strontium dating - 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 yearsdating, geological dating - use of chemical analysis to estimate the age of geological specimens |
rubidium-strontium dating
rubidium-strontium dating[rü′bid·ē·əm ′strän·chəm ′dād·iŋ] (geology) A method for determining the age of a mineral or rock based on the decay rate of rubidium-87 to strontium-87. rubidium-strontium dating
Words related to rubidium-strontium datingnoun geological dating based on the proportions of radioactive rubidium into its decay product strontiumRelated Words |
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