TO: Tom Davies

FM: Jay Miller


JA Daily Science Report for Expedition 305, 24 January 2005.


SCIENCE UPDATE: Cores 305-U1309D-131R to -135R (645.4 to 669.4 mbsf, 80% recovery) are coarse-grained, olivine-bearing gabbro, with intervals of medium-grained olivine-bearing gabbro, coarse-grained to pegmatitic gabbro, and coarse-grained oxide gabbro. Coarse-grained intervals are, in general, more pervasively altered. Epidote is present in veins and patches. Intervals with strong foliation are thin and rare, but intervals with subtle magmatic foliation appear to be slightly more common over the last few tens of meters of core.