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. 2014 Aug 11;4:6018. doi: 10.1038/srep06018

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G. ruber (W) δ¹³C (a) and δ¹⁸O (b) results for ss (abscissa) versus sl (ordinate) from the sediment trap (yellow triangles), core-top (orange squares), and downcore samples (green circles) with error bars based on analytical precision (±1σ_analytical; δ¹³C – 0.06‰ and δ¹⁸O – 0.08‰). The 1:1 line (black dashed line) along with uncertainty limits (grey dashed lines based on ±1σ_analytical) is also plotted. The maximum likelihood regression lines incorporating bivariate uncertainty are: 1) sl-δ¹³C = (−0.11 ± 0.06) + (0.96 ± 0.06)*ss-δ¹³C and 2) sl-δ¹⁸O = (−0.01 ± 0.05) + (0.96 ± 0.04)*ss-δ¹⁸O.