TO: Tom Davies
FM: Jay Miller
JA Daily Science Report for Expedition 304, 22 December 2004.
LOCATION: Site U1309 (prospectus site AMFW-01A)
Latitude: 30° 10.1195'N Longitude: 42° 07.1311'W
Water depth: 1645 mbsl
SCIENCE UPDATE: Return to footwall Site U1309 and continue to deepen Hole U1309D. Cores U1309D-23R and -24R (131.0 to 142.7 mbsf, 35% recovery, 49% average recovery for hole) recovered a 60 cm interval of diabase and 70 cm of medium-grained, moderately altered gabbro. Below this we recovered ~1.3 m of serpentinized peridotite, followed by 2.5 m of coarse-grained, moderately altered gabbro.