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 12 116 NO 57.4960 -15.9243 ATLANTIC NORTH BASIN 07/17/1970 07/20/1970 NO YES CHIEF SCIENTIST DECISION NO NO NO NO NO NO NO NO 1151 854 628 226 28 195 86 841.0 1992 28 NO AGE GIVEN FORAM-NANNO CHALK IN MATRIX OF FLUID OOZE CALCAREOUS PELAGIC MONOGENIC SOFT NANNOFOSSIL FORAMINIFERA