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Figure 14. Postdrilling interpretation for local seismic profile AGSO 202-5, across Site 1171, showing broad ages and lithostratigraphic units. The site is in a north-south strike-slip basin on the central block of the South Tasman Rise, just west of the trace of the Balleny Fracture Zone block (and the eastern block of the Rise). It is the only site that penetrated the Paleocene, and the relationships at the Paleocene/Eocene unconformity indicate that the fracture zone's last movement was in the late Paleocene. This probably represents the time of initial spreading to the south. Note the thick Eocene, the very thin Oligocene, and the thin Pliocene-Pleistocene sections at this site. TD = total depth.

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