(ii) Calculate the atomic 87Rb/86Sr ratio of a lava sample from a mid-ocean ridge the oceans that contain Rb = 1.26 μg/g and Sr = 113 μg/g ; Atomic weights: Rb = 85.47 and Sr = 87.62 ; Isotopic abundances: 87Rb = 27.84% of Rb, and 86Sr = 9.86% of Sr.
(ii) Calculate the atomic 87Rb/86Sr ratio of a lava sample from a mid-ocean ridge the oceans...