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 50 415 B NO 31.0287 -11.6518 ATLANTIC NORTH BASIN 09/21/1976 09/21/1976 NO NO CHIEF SCIENTIST DECISION OCEANIC NO NO NO NO NO NO NO NO 2794 64 47 17 2 3.1 18 64.0 2858 2 NO AGE GIVEN FORAM BEARING NANNOFOSSIL OOZE CALCAREOUS PELAGIC MONOGENIC SOFT NANNOFOSSIL unk - 0000