leg site hole well logging latitude longitude ocean ocean hemisphere sea physographic feature hard rock feature ta td re-entry site survey site termination crust equipment test heat flow in situ pore water hydraulic piston core variable length hpc pressure core barrel punch core extended core barrel water depth(m) total penetration(m) drilled penetration(m) cored penetration(m) number of cores recovered meters recovered percent recovery meters of hard rock cored number of hard rock cores meters of hard rock recovered depth to basememnt(m) oldest sediment sub-bottom depth oldest sediment depth below sealevel oldest sediment core number oldest sediment age oldest sediment lithology oldest sediment lithology composition oldest sediment source oldest sediment heterogeneity oldest sediment hardness oldest comp1 oldest comp2 hard rock descriptions and comments 51 417 A NO 25.1105 -68.0413 ATLANTIC NORTH RISE PILLOW 12/03/1976 12/10/1976 NO YES MECHANICAL OR EQUIPMENT FAILURE OCEANIC NO NO NO NO NO NO NO NO 5468 417 417 46 249 59 209 24 128 208 217.8 5686 24 NO AGE GIVEN ZEOLITIC CLAY unk - 0000 unk - 0000 ALTERED CHILLED PILLOWS IN CALCITE&GRN SMECTITE MATRIX