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 41 367 NO 12.4868 -20.0472 ATLANTIC NORTH BASIN FLOW 03/03/1975 03/10/1975 NO YES OPERATIONAL LIMIT REACHED OCEANIC NO NO NO NO NO NO NO NO 4748 1153 806 347 40 174 50 7 3 6.6 1146 1148 5896 38 NO AGE GIVEN CLAY MINERAL RICH CARBONATE LIMESTONE CALCAREOUS TRANSITIONAL MONOGENIC HARD CARBONATE CLAY MINERAL BASALT