TO: Tom Davies

FM: Carlos A. Alvarez Zarikian


JA Daily Science Report for Expedition 306, 10 April 2005.


LOCATION: En route to Site U1315 (ODP Site 642, CORK)


SCIENCE UPDATE: Hole U1314C was completed at 07:55 hrs with the recovery of Core 22H. The 207.7 m cored interval (212.93 m of sediment, 102.2% recovery) at this hole spans from 0 to ~2.4 Ma according to the nannostratigraphy. The completion of Hole U1314C concluded coring operations at Site U1314. At Hole U1314B, the lithology of Cores U1314B-1H to 20H consists of gray, dark gray, greenish gray, green and olive gray silty clay biosiliceous nannofossil ooze, silty clay nannofossil ooze with diatoms, and silty clay with foraminifers and nannofossils. The Brunhes/Matuyama boundary was documented at 56.6 mbsf and the Jaramillo normal polarity zone between 73.1 and 80.7 mbsf at Hole U1314B.