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Not finding the right answers on Google? As you point out, it is how to actually interpret these values you are getting, and whether you can actually use the data ages calculated. Later, Lugmair et al. IntroductionIntroduced to the geochemical and cosmochemical communities in the early s, the Sm—Nd radioactive decay systems have grown into essential tools in geochronology and particularly for the tracing of geochemical processes. However, it is not the case. The fractionation law was suggested in Russell et al. Geochimica et Cosmochimica Acta, 46, —

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Because of this, meteorites in general are not considered as very good representatives of the solar nebula with respect to the Rb-Sr isotopic evolution.

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AGU, 73 14p. Richard W. This age represents our best age estimate for the Ujaraaluk unit. Nd and Sr isotopic compositions of young granitoid rocks from diverse locations show that none of them is derived from an oceanic mantle. Abundances of monoisotopic REE, consistent with Leedey chondrite values. Bruce F Schaefer.

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