Figure F13. Seismic reflection profile with lithostratigraphy and synthetic seismic trace for Site 1165 (modified from Handwerger et al., this volume).The strong band of reflections at ~5600 ms results from alternating hard and soft layers found at the diagenetic transition from opal-A to inferred opal-CT silica. The largest reflection packet at ~5650 ms is a regional bottom-simulating-reflection (BSR) that results from the abrupt physical property changes at 608 mbsf, a depth below which diatoms are not found. P3 is a regional reflector discussed in the text. TD = total depth.

Figure F13. Seismic reflection profile with lithostratigraphy and synthetic seismic trace for Site 1165 (modified from Handwerger et al., this volume).The strong band of reflections at ~5600 ms results from alternating hard and soft layers found at the diagenetic transition from opal-A to inferred opal-CT silica. The largest reflection packet at ~5650 ms is a regional bottom-simulating-reflection (BSR) that results from the abrupt physical property changes at 608 mbsf, a depth below which diatoms are not found. P3 is a regional reflector discussed in the text. TD = total depth.