1 results match your criteria Canadian Mineralogist[Journal]
Can Mineral 1991 ;29:1043-50
Department of Geology, Florida International University, Miami 33199, USA.
We have measured the concentrations of rubidium and strontium and 87Sr/86Sr values of whole-rock samples from three paleosols of different ages. The oldest of the three weathering horizons, the 2,760 Ma Mt. Roe #1 paleosol in the Fortescue Group of Western Australia, experienced addition of Rb, and probably Sr, at 2,168 +/- 10 Ma. Read More
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