Figure 37 | Table of Contents

Figure 36. Stratigraphic sections drilled during Leg 192 and at the three previous DSDP and ODP Ontong Java Plateau basement sites. Seven sites are arranged on a transect from the crest of the main plateau (Site 1183) eastward to the plateau rim (Site 1185) and then north and northwestward to Site 807 on the northern flank. Site 1184 lies off the transect, 590 km to the southeast of Site 1185. Basement ages for the previously drilled sites are from ⁴⁰Ar-³⁹Ar dating of basalt (Mahoney et al., 1993). For the Leg 192 sites, basement ages are estimated from biostratigraphic evidence.