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 4 25 NO -0.5167 -39.2400 ATLANTIC SOUTH RIDGE 02/10/1969 02/11/1969 NO YES DRILL BIT WORN OUT NO NO NO NO NO NO NO NO 1916 66 2.0 64 9 25 39 59.0 1975 7 NO AGE GIVEN ALGAL COQUINAL LIMESTONE CALCAREOUS TRANSITIONAL HETEROGENIC HARD ESTIMATED CARBONATE unk - 0000