TO: Tom Davies

FM: Carlos A. Alvarez Zarikian


JA Daily Science Report for Expedition 306, 9 April 2005.


LOCATION: Site U1314 (GAR-1B)



Cores U1314A-18H to -28H consist of upper Pliocene gray, olive, olive gray and dark gray biosiliceous nannofossil ooze with silty clay, silty clay nannofossil ooze with diatoms, silty clay with foraminifers and nannofossils. The Reunion normal polarity subzone was identified between 175.8 and 178.4 mbsf, and the Matuyama/Gauss boundary at 224.7 mbsf in Hole U1314A. Hole U1314B was concluded at 10:40 hr with the recovery of Core U1314B-30H. The 279.5 m cored interval (285.36 m of sediment, 102.1% recovery) at this hole spans from 0 to ~3 Ma. The drill ship was offset 25 m east of Hole U1314B and Hole U1314C was spudded at 13:20 hr. Core U1314C-1H was on deck at 13:40 hr recovering 8.22 m of sediment, establishing a sea floor depth of 2810.3 mbrf. Cores U1314C-1H to -15H had been recovered by midnight for a total of 144.31 m of sediment (recovery of 102.2%).