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10 Nov 2019
A moon rock collected by a U.S. Apollo mission is estimated to be 4.40 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of ^206Pb per 1.300 g of ^238U in the rock? The half-life of ^238U is t_1/2 = 4.47 times 10^9 years.
A moon rock collected by a U.S. Apollo mission is estimated to be 4.40 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of ^206Pb per 1.300 g of ^238U in the rock? The half-life of ^238U is t_1/2 = 4.47 times 10^9 years.
Tod ThielLv2
16 May 2019