JA Daily Science Report for Expedition 309, 13 August 2005


LOCATION: Site 1256


SCIENCE UPDATE: Cores 147R to 148R recovered 1.48 m of basalts from 1145.2 to 1156.1 mbsf (13.6% recovery) Unit 50, consisting of massive sparsely phyric microcrystalline basalt, continues to Piece 4 of Section 147R-1 and aphyric fine-grained dolelitic basalt defining Unit 51 is present from Piece 5 to the end of the section. The beginning of Section 148R-1 marks a new unit (52) composed of small (< 5 cm) pieces of aphyric cryptocrystalline to microcrystalline basalt with a chilled margin in Piece 9 of Section 148R-1.