TO: Tom Davies

FM: Trevor Williams


JA Daily Science Report for Expedition 307, 8 May 2005


LOCATION: Site U1316 (PORC-4A), Site U1318 (PORC-2A)


SCIENCE UPDATE: Downhole logging at Hole U1316C included the Triple Combo and FMS-sonic tool strings, which both reached that bottom of the hole at 143 mbsf. The pipe was set at 58 mbsf and raised by 15m for the final FMS-sonic pass. Several thin (<2m) high density, high velocity, low porosity beds interrupt a steady compaction trend with depth, and it is likely that they can be linked to reflectors on the seismic section.


Cores U1318A-1H to 4H are late Pleistocene silty clay.