Figure 2. Carbonate records from Sites 643, 907, and 985. The ¹⁸O records from Sites 643 and 907 are plotted to corrected sub-bottom depth (Sites 643 and 907) or to composite sub-bottom depth (mcd: Site 985). The carbonate and ¹⁸O data for Site 643 are from Henrich and Baumann (1994), and the ages for Site 643 are from Fronval and Jansen (1996) and T. Fronval (pers. comm., 1997). Carbonate data for Site 907 are from Baumann et al. (1996), and the ¹⁸O data and age interpretations are from Fronval and Jansen (1996). Typical shape patterns for the Site 985 carbonate record are cross-correlated to those for Sites 643 and 907.