TO: Tom Davies

FM: Carlos A. Alvarez Zarikian


JA Daily Science Report for Expedition 306, 1 April 2005.


LOCATION: Site U1313 (IRD3A), Hole U1313C



Coring Hole U1313C concluded at 1940 hr with the recovery of Core 32H for a total of 293.4 m of sediment and a recovery of 104.1%. The sediment at the base of Hole U1313C is of late Miocene age (~6-6.8 Ma) and the lithology below Core 14H is predominantly white (N9) nannofossil ooze. Hole U1313D was spudded 25 m south of Hole U1313C at 2255 hr. Cores U1313D-1H and 2H had been recovered by midnight.


At Hole U1313B, the Matuyama/Gauss and Gauss/Gilbert boundaries were identified at 109 mbsf (2.58 Ma) and 155 mbsf (3.58 Ma), respectively.