Figure F20. Line GeoB 01-046 and Sites 1263 and 1264 plotted with age estimates of prominent reflectors. RO/M is the Oligocene/Miocene boundary. R1 is a regional reflector associated with an erosional unconformity. At Site 1264, the P/E boundary reflector (RP/E) is estimated to be at 380 mbsf and the K/P boundary reflector (RK/P) at 460 mbsf. CDP = common depth point. V.E. = vertical exaggeration.