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radiometric dating
(redirected from Isotopic dating)

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radiometric dating
n
(Social Science / Archaeology) any method of dating material based on the decay of its constituent radioactive atoms, such as potassium-argon dating or rubidium-strontium dating Also called radioactive dating
radiometric dating  (rd--mtrk)
A method for determining the age of an object based on the concentration of a particular radioactive isotope contained within it. For inorganic materials, such as rocks containing the radioactive isotope rubidium, the amount of the isotope in the object is compared to the amount of the isotope's decay products (in this case strontium). The object's approximate age can then be figured out using the known rate of decay of the isotope. For organic materials, the comparison is between the current ratio of a radioactive isotope to a stable isotope of the same element and the known ratio of the two isotopes in living organisms. Radiocarbon dating is one such type of radiometric dating.
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Estimates of the rocks' age were made using isotopic dating, a technique which can only be used to date rocks roughly 4.
Canadian scientists discover oldest rocks on Earth by AFP / AFP American Edition
Estimates of the rocks' age were made using isotopic dating, a technique which can only be used to date rocks roughly 4.
Canadian scientists discover oldest rocks on Earth by AFP / AFP Global Edition
Of course, the experimental error is still larger, and the precise isotopic dating for the marine oil shale needs further study.
Re-Os (ICP-MS) dating of marine oil shale in the Qiangtang basin, ... by Xiugen, Fu; Jian, Wang; Wenjun, Qu; Taizhong, Duan; Andao, Du; Zhengjiang, Wang; Hua, Liu / Oil Shale
 
 
 
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