Previous | Close | Next
Figure F14. Interpreted multichannel seismic Profile USGS-13 across the continental rise (proposed Site WLRIS-03A). Although the profile is of low resolution, it shows the same upsection increase in the energy of the depositional environment described in Figure F9. Unconformities WL-U3 and WL-U5 are, nevertheless, clearly shown. Proposed Site WLRIS-03A is an alternate to proposed Site WLRIS-04A (see Fig. F14), targeted to obtain a high-resolution Neogene record that should provide insights to the age and nature of the onset of the large sediment supply to the continental rise (i.e., strata below and above Unconformity WL-U5), as well as the response of continental rise sedimentation to the transition from a wet-based to a cold-based and more persistent ice sheet. See Figure F5 for location of profile. SP = shotpoint.
Previous | Close | Next | Top of page