Uncertainty in the values of eNd(t) or eHf(t) (epsilon Nd or Hf) of a particular sample (rock or mineral) depends on several things including uncertainties in the present day isotopic ratios and uncertainty of the instrument. If I have only the error values (say 2s) of present day isotopic ratios of a sample (say Sm/Nd and Nd/Nd), is it possible to propagate the error from these uncertainties alone and calculate the uncertainty in eNd(t) or epsilon Nd (initial)? If yes, can someone kindly share the any worked out calculation for it?
Ickert, 2013 would be good start.
"Algorithms for estimating uncertainties in initial radiogenic isotope ratios and
model ages" Chemical Geology, v340.
Dear Trisrota,
Indeed, Ickert's Chem.Geol. paper can be used as a guideline for these calculations, as suggested by Christopher Fisher. The solution (through partial derivatives) can also be found in section 2.3.1. in one of my recent papers (Ujvari et al., 2018, G-Cubed). Please find attached. Hope this helps and not too late.
Best regards,
Gabor Ujvari
Dear Dr. Fisher,
Thanks for your recommendation. I've gone through Ickert's paper earlier though, but needed some worked out exercises understanding it.
Dear Dr. Ujvari,
Thank you so much for sharing your paper. I shall go through it thoroughly.
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