Nature 436, 341–346 (2005)

We wish to clarify that mass accumulation rates in this Article were calculated using dry bulk densities from Michael Vanden Berg (personal communication) and that the method used for calculating the calcite compensation depth (CCD) in Fig. 1a (linear extrapolation of the CCD) is detailed in a forthcoming publication1.

Also, the dark green and dark grey lines in Fig. 2 of the Article should have contained symbols to distinguish between data from different laboratories for site 1218, and a revised version of Fig. 2 is accordingly shown here. Benthic foraminiferal data from our study are now indicated by open circles (dark colours, site 1218; light colours, site 1209) and published data2 for site 1218 are represented as crosses.

figure 1

Figure 1

Our conclusions remain unchanged.