Calculated 14C ages of the five samples collected from the undisturbed soft sediment above the "soft-firm" contact we have interpreted as the sole of the most recent slide, range in age from 3800 to 10,000 radiocarbon years (Table 1). These data (Fig. 1) indicate continuous sedimentation at Site 991 over most of the Holocene. A linear fit to this data indicates a sedimentation rate of 27 cm/k.y. This sedimentation rate compares well with other 14C data that have been collected in the region (Paull et al., 1996). The sixth sample, which came from firm sediments beneath the sole of the slide (at a depth of 2.21 mbsf), has an age of 26,900 radiocarbon years.