The age of most ancient geological formations is estimated by a)`C-14` dating method b)`K-Ag` method c)`U-Pb` method d)`Ra-Rn` method

Monjur Alahi

The age of most ancient geological formations is estimated by a)`C-14` dating method b)`K-Ag` method c)`U-Pb` method d)`Ra-Rn` method
A. potassium argon method
B. carbon 14 dating method `
C. radium silicon method
D. uranium lead method


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Salim Ahmed Kawsar

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Correct Answer - D
The age of most ancient geological objects is determined by uranium lead method. This methos is based on the radoactive porperties of uranium. In theis methos,we assume that initially the rock did not contain any lead , we can calculate the age of the rock by measuring the ratio of concentrations of `_(92)U^(238)nd _(82)Pb^(206)`

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