TO: Tom Davies
FM: Jay Miller
JA Daily Science Report for Expedition 304, 29 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: Cores U1309D-67R to -73R (343.6 to 377.2 mbsf, 85% recovery, 63% average recovery for hole). Core U1309D-67R recovered moderately altered, medium-coarse grained, olivine-rich gabbro to coarse-grained olivine gabbro (no contact recovered). The coarse olivine gabbro continues through Core U1309D-69R, followed by coarse-grained oxide gabbro. A sharp contact juxtaposes the oxide gabbro with medium-grained, olivine-rich gabbro near the base of Core U1309D-69R. The olivine-rich gabbro grades down section into coarse-grained olivine gabbro, which continues to the bottom of the cored section.